{"id":20649,"date":"2026-08-18T06:21:45","date_gmt":"2026-08-18T06:21:45","guid":{"rendered":"https:\/\/www.jianjiebinder.com\/?p=20649"},"modified":"2026-08-18T06:22:35","modified_gmt":"2026-08-18T06:22:35","slug":"bentonite-in-iron-ore-pelletizing-challenges-global-trends-and-the-role-of-bentonite-modifiers","status":"publish","type":"post","link":"https:\/\/www.jianjiebinder.com\/id\/bentonite-in-iron-ore-pelletizing-challenges-global-trends-and-the-role-of-bentonite-modifiers\/","title":{"rendered":"Bentonite in Iron Ore Pelletizing: Challenges, Global Trends and the Role of Bentonite Modifiers"},"content":{"rendered":"<nav class=\"wp-block-stackable-table-of-contents stk-block-table-of-contents stk-block stk-58fafe7 stk-block-background\" data-block-id=\"58fafe7\"><style>.stk-58fafe7 {background-color:#f8fafc !important;}.stk-58fafe7:before{background-color:#f8fafc !important;}<\/style><p class=\"stk-table-of-contents__title\"><strong>Daftar isi<\/strong><\/p><ul class=\"stk-table-of-contents__table\"><li><a href=\"#introduction\">Introduction<\/a><\/li><li><a href=\"#1-current-use-of-bentonite-in-iron-ore-pelletizing\">1. Current Use of Bentonite in Iron Ore Pelletizing<\/a><\/li><li><a href=\"#2-why-is-reducing-bentonite-consumption-becoming-more-important\">2. Why Is Reducing Bentonite Consumption Becoming More Important?<\/a><\/li><li><a href=\"#3-bentonite-vs-organic-and-composite-binders\">3. Bentonite vs. Organic and Composite Binders<\/a><\/li><li><a href=\"#4-what-is-a-bentonite-modifier-for-iron-ore-pelletizing\">4. What Is a Bentonite Modifier for Iron Ore Pelletizing?<\/a><\/li><li><a href=\"#5-how-can-bentonite-modification-improve-pellet-quality\">5. How Can Bentonite Modification Improve Pellet Quality?<\/a><\/li><li><a href=\"#6-research-and-industrial-development-of-modified-bentonite\">6. Research and Industrial Development of Modified Bentonite<\/a><\/li><li><a href=\"#7-jianjie-bentonite-modifier-for-iron-ore-pelletizing\">7. Jianjie Bentonite Modifier for Iron Ore Pelletizing<\/a><\/li><li><a href=\"#8-why-consider-a-bentonite-modifier-instead-of-completely-replacing-bentonite\">8. Why Consider a Bentonite Modifier Instead of Completely Replacing Bentonite<\/a><\/li><li><a href=\"#9-the-future-of-iron-ore-pellet-binders\">9. The Future of Iron Ore Pellet Binders<\/a><\/li><li><a href=\"#conclusion\">Kesimpulan<\/a><\/li><\/ul><\/nav>\n\n\n\n<h2 id=\"introduction\" class=\"wp-block-heading\" data-block-type=\"core\">Introduction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong><a href=\"https:\/\/www.jianjiebinder.com\/id\/iron-ore-pelletizing-what-is-the-production-process-of-iron-ore-pellets\/\" data-type=\"post\" data-id=\"15857\">Iron ore pellets<\/a> <\/strong>are an important raw material for modern ironmaking. Produced by agglomerating fine<a href=\"https:\/\/www.jianjiebinder.com\/id\/types-of-iron-ore-properties-uses-and-pelletizing\/\" data-type=\"post\" data-id=\"15430\"> <strong>iron ore concentrate<\/strong><\/a>&nbsp;into green pellets and then drying, preheating, and indurating them, pellets offer consistent size, high iron content, and good mechanical strength for blast furnace and direct reduction (DR) processes.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" data-block-type=\"core\"><img decoding=\"async\" width=\"1024\" height=\"490\" loading=\"lazy\" src=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109-1024x490.png\" alt=\"disc pelletizing\" class=\"wp-image-20663\" style=\"width:500px\" srcset=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109-1024x490.png 1024w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109-300x143.png 300w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109-768x367.png 768w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109-18x9.png 18w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u62101-e1786946291109.png 1366w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">disc pelletizer<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">As ironmaking technologies continue to develop, <strong><a href=\"https:\/\/www.jianjiebinder.com\/id\/how-to-evaluate-the-quality-of-ore-pellets-analysis-of-key-indicators\/\" data-type=\"post\" data-id=\"16053\">kualitas pelet<\/a><\/strong>&nbsp;has become increasingly important in major steel-producing regions around the world. <a href=\"https:\/\/worldsteel.org\/media\/press-releases\/2026\/december-2025-crude-steel-production-2025-global-crude-steel-production\/?utm_source=chatgpt.com\" rel=\"nofollow noopener\" target=\"_blank\">China remains by far the world&#8217;s largest steel producer<\/a>, while India, Japan, South Korea, Russia, T\u00fcrkiye, Brazil, Iran, Europe, and the Middle East also represent important iron and steel markets. In 2025, China produced approximately 960.8 million tonnes of crude steel, followed by India at 164.9 million tonnes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The importance of iron ore pelletizing, however, varies by region. China and India have large integrated ironmaking industries, while Brazil is a major iron ore producer and pellet exporter. The Middle East is developing increasing interest in high-quality iron ore feedstocks for direct reduction, while Europe is focusing increasingly on high-grade pellets and DR-grade materials as part of its transition toward lower-carbon ironmaking.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Across these markets, one challenge remains relevant: <strong>how to produce strong, high-quality iron ore pellets while minimizing the amount of gangue introduced by the binder.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Bentonit <\/strong>has traditionally been one of the most widely used<strong>&nbsp;inorganic binders<\/strong>&nbsp;for iron ore pelletizing. It improves green pellet strength, dry pellet strength, and thermal stability. However, excessive bentonite addition also introduces silica and alumina, which can reduce pellet iron grade and increase slag generation during ironmaking.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This has led to growing interest in <strong>modified bentonite<\/strong><strong>&nbsp;(bentonite extender\/enhancer)<\/strong><strong>&nbsp;and composite binders<\/strong>&nbsp;that can reduce bentonite consumption while maintaining or improving pellet quality.<\/p>\n\n\n\n<h2 id=\"1-current-use-of-bentonite-in-iron-ore-pelletizing\" class=\"wp-block-heading\" data-block-type=\"core\">1. Current Use of Bentonite in Iron Ore Pelletizing<\/h2>\n\n\n\n<h3 id=\"1-1-why-is-bentonite-used-in-iron-ore-pellets\" class=\"wp-block-heading\" data-block-type=\"core\">1.1 Why Is Bentonite Used in Iron Ore Pellets?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Iron ore concentrate is generally too fine to be charged directly into a blast furnace or other ironmaking unit. During pelletizing, fine concentrate is mixed with water and a binder before being formed into green pellets, typically around<strong>&nbsp;8\u201316 mm<\/strong>&nbsp;in diameter.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" data-block-type=\"core\"><img decoding=\"async\" width=\"1024\" height=\"683\" loading=\"lazy\" src=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21-1024x683.jpg\" alt=\"pelet bijih besi\" class=\"wp-image-20664\" style=\"width:500px\" srcset=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21-1024x683.jpg 1024w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21-300x200.jpg 300w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21-768x512.jpg 768w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21-18x12.jpg 18w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u7403\u56e2\u77ff-21.jpg 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Pelet Bijih Besi<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The pellets are then dried, preheated, and indurated to obtain sufficient mechanical strength for handling and ironmaking.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The binder plays several important roles:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fImproving the bonding between fine iron ore particles<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fImproving green pellet strength<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fImproving dry pellet strength<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fIncreasing resistance to cracking and thermal shock<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fStabilizing moisture and pelletizing operations<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">\u2705\ufe0fSupporting consistent pellet size and quality<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Bentonite became widely adopted because it provides good binding performance, is relatively easy to process, and can significantly improve green pellet drop strength and dry pellet compressive strength.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Its ability to improve thermal stability is particularly valuable during pellet drying and preheating.<\/p>\n\n\n\n<h3 id=\"1-2-the-global-use-of-bentonite\" class=\"wp-block-heading\" data-block-type=\"core\">1.2 The Global Use of Bentonite<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Bentonite remains widely used in iron ore pelletizing plants around the world, although the required dosage varies considerably depending on ore characteristics, bentonite quality, pelletizing equipment, and process conditions.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\" data-block-type=\"core\"><img decoding=\"async\" width=\"1365\" height=\"1365\" loading=\"lazy\" src=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited.png\" alt=\"bentonit\" class=\"wp-image-20668\" style=\"width:500px\" srcset=\"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited.png 1365w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited-300x300.png 300w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited-1024x1024.png 1024w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited-150x150.png 150w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited-768x768.png 768w, https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/\u5706\u76d8\u9020\u7c92\u673a\u8fd0\u4f5c\u56fe\u751f\u6210-1-edited-12x12.png 12w\" sizes=\"auto, (max-width: 1365px) 100vw, 1365px\" \/><figcaption class=\"wp-element-caption\">Bentonit<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">In countries with large pelletizing industries, including China, India, Brazil, Russia, and parts of Europe and the Middle East, pellet producers continuously optimize binder systems to achieve the required pellet strength while maintaining high iron grade.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The challenge is particularly important when the iron ore concentrate has poor ballability, low grade, coarse particle size distribution, or other characteristics that require higher binder consumption.<\/p>\n\n\n\n<h3 id=\"1-3-the-main-problem-bentonite-adds-gangue\" class=\"wp-block-heading\" data-block-type=\"core\">1.3 The Main Problem: Bentonite Adds Gangue<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Although bentonite improves pellet strength, it is not an iron-bearing material.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Its main mineral components contain significant amounts of silica and alumina. When bentonite dosage increases, these components enter the pellet together with the iron ore concentrate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This can lead to several problems:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Lower iron grade<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">More bentonite means more non-iron-bearing material in the finished pellet, potentially reducing its iron grade.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Higher slag generation<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Additional silica and alumina can contribute to increased slag formation during blast furnace ironmaking.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Higher flux and energy requirements<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Changes in gangue content can affect the overall burden composition and ironmaking operation.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Reduced process efficiency<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">If poor-quality or high-dosage bentonite is required to compensate for difficult pelletizing conditions, the benefits of improved pellet strength may come at the expense of overall process efficiency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Therefore, the objective is not simply to find a stronger binder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The real objective is:&nbsp;<strong>To achieve the required pellet strength with the lowest practical binder and bentonite dosage.<\/strong><\/p>\n\n\n\n<h2 id=\"2-why-is-reducing-bentonite-consumption-becoming-more-important\" class=\"wp-block-heading\" data-block-type=\"core\">2. Why Is Reducing Bentonite Consumption Becoming More Important?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The demand for high-quality iron ore pellets is increasing as ironmaking plants seek better burden quality and improved process efficiency.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This trend is visible across different regions for different reasons.<\/p>\n\n\n\n<h3 id=\"china\" class=\"wp-block-heading\" data-block-type=\"core\">China<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">China has the<strong> world&#8217;s largest steel industry<\/strong> and a large integrated ironmaking sector. The optimization of blast furnace burden quality, reduction of energy consumption, and reduction of slag generation are important factors driving interest in high-grade pellets and lower-bentonite binder systems. China produced approximately 960.8 million tonnes of crude steel in 2025.<\/p>\n\n\n\n<h3 id=\"india\" class=\"wp-block-heading\" data-block-type=\"core\">India<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">India is the <strong>world&#8217;s second-largest <\/strong>crude steel producer and continues to expand its steelmaking capacity. Its large domestic iron ore resources and growing pelletizing industry make pellet quality and efficient use of iron ore concentrate increasingly important. India produced approximately 164.9 million tonnes of crude steel in 2025.<\/p>\n\n\n\n<h3 id=\"brazil\" class=\"wp-block-heading\" data-block-type=\"core\">Brazil<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Brazil is one of the world&#8217;s major<strong> iron ore producers<\/strong> dan sebuah <strong>important supplier <\/strong>of iron ore pellets to international markets. Pellet quality is therefore important not only for domestic ironmaking but also for export-oriented production, particularly where high-grade feedstock is required.<\/p>\n\n\n\n<h3 id=\"europe\" class=\"wp-block-heading\" data-block-type=\"core\">Europe<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">European steelmakers are increasingly developing<strong> lower-carbon ironmaking routes<\/strong>, including direct reduction. This creates additional interest in high-quality iron ore feedstocks with suitable chemistry and physical properties. At the same time, some European steel production is shifting toward electric arc furnaces and scrap-based production, meaning the demand for pelletizing is more closely connected to the development of primary ironmaking and DR projects.<\/p>\n\n\n\n<h3 id=\"middle-east\" class=\"wp-block-heading\" data-block-type=\"core\">Middle East<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The Middle East is becoming an increasingly important region for <strong>direct reduction-based ironmaking<\/strong>. Countries such as Saudi Arabia, Iran, and the UAE have significant steelmaking industries and growing interest in high-quality iron ore feedstocks. The regional focus on direct reduction makes pellet quality and suitable iron ore chemistry particularly important. The Middle East produced about 54.8 million tonnes of crude steel in 2024, according to worldsteel data.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">These regional differences lead to the same general direction:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" data-block-type=\"core\">\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Higher-quality pellets + lower gangue input + better binder efficiency.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<h2 id=\"3-bentonite-vs-organic-and-composite-binders\" class=\"wp-block-heading\" data-block-type=\"core\">3. <a href=\"https:\/\/www.jianjiebinder.com\/id\/bentonite-binder-vs-organic-binder-vs-composite-binder-in-iron-ore-pelletizing\/\" data-type=\"post\" data-id=\"15509\">Bentonite vs. Organic and Composite Binders<\/a><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Iron ore pellet binders can generally be divided into three categories:<\/p>\n\n\n\n<h3 id=\"inorganic-binders\" class=\"wp-block-heading\" data-block-type=\"core\">Inorganic binders<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Bentonite is the most widely used example.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Advantages:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\">Good green pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Good dry pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Good thermal stability<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Relatively easy to use<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Widely available<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Keterbatasan:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\">Adds silica and alumina<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Can reduce pellet iron grade<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">May increase slag generation<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Higher dosage can negatively affect pellet chemistry<\/li>\n<\/ul>\n\n\n\n<h3 id=\"organic-binders\" class=\"wp-block-heading\" data-block-type=\"core\">Organic binders<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Organic binders can provide strong bonding at much lower addition rates than conventional bentonite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Advantages:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\">Low dosage<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Less gangue introduction<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Potentially higher pellet iron grade<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">However, some organic binders may have limitations related to dispersion, mixing, pelletizing behavior, thermal stability, or cost.<\/p>\n\n\n\n<h3 id=\"composite-binders\" class=\"wp-block-heading\" data-block-type=\"core\">Pengikat komposit<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Composite binders combine the advantages of inorganic and organic materials.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The basic concept is simple:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" data-block-type=\"core\">\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Use the binding strength of organic components to reduce the amount of bentonite required, while retaining the pelletizing and thermal stability provided by bentonite.<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This makes composite binder systems an attractive approach for improving pellet quality without completely replacing conventional bentonite.<\/p>\n\n\n\n<h2 id=\"4-what-is-a-bentonite-modifier-for-iron-ore-pelletizing\" class=\"wp-block-heading\" data-block-type=\"core\">4. What Is a Bentonite Modifier for Iron Ore Pelletizing?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">A bentonite modifier <a href=\"https:\/\/www.jianjiebinder.com\/id\/pemanjang-bentonit\/\" data-type=\"post\" data-id=\"17763\">(bentonite extender)<\/a> is designed to improve the performance of conventional bentonite so that a lower amount can achieve similar or better pelletizing results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Instead of replacing bentonite completely, the modifier is typically incorporated into bentonite before the bentonite is added to the iron ore concentrate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The principle is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" data-block-type=\"core\">\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Bentonite + Modifier \u2192 Improved Binder System \u2192 Lower Bentonite Consumption \u2192 Higher Pellet Iron Grade<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The modifier can improve the dispersion, bonding behavior, and interaction between bentonite and iron ore particles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">As a result, pellet plants may be able to reduce bentonite consumption while maintaining the required green pellet strength, dry pellet strength, thermal stability, and fired pellet strength.<\/p>\n\n\n\n<h2 id=\"5-how-can-bentonite-modification-improve-pellet-quality\" class=\"wp-block-heading\" data-block-type=\"core\">5. How Can Bentonite Modification Improve Pellet Quality?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">A well-designed modified bentonite system can provide several potential benefits.<\/p>\n\n\n\n<h3 id=\"improved-green-pellet-strength\" class=\"wp-block-heading\" data-block-type=\"core\">Improved Green Pellet Strength<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Better particle bonding helps green pellets withstand transportation from the pelletizing disc to subsequent processing stages.<\/p>\n\n\n\n<h3 id=\"better-thermal-stability\" class=\"wp-block-heading\" data-block-type=\"core\">Better Thermal Stability<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Improved binder performance can increase resistance to cracking and bursting during drying and preheating.<\/p>\n\n\n\n<h3 id=\"lower-bentonite-consumption\" class=\"wp-block-heading\" data-block-type=\"core\">Lower Bentonite Consumption<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The primary objective is to achieve the required pellet strength with less conventional bentonite.<\/p>\n\n\n\n<h3 id=\"higher-iron-grade\" class=\"wp-block-heading\" data-block-type=\"core\">Higher Iron Grade<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Reducing bentonite addition means reducing the amount of non-iron-bearing gangue introduced into the pellet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">As a simplified rule of thumb used in pelletizing practice, reducing bentonite addition by <strong>1 percentage<\/strong> point can potentially increase pellet iron grade by around <strong>0.6 percentage<\/strong> points, although the actual result depends strongly on the ore and binder system.<\/p>\n\n\n\n<h3 id=\"better-fired-pellet-performance\" class=\"wp-block-heading\" data-block-type=\"core\">Better Fired Pellet Performance<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">An optimized binder system can contribute to improved pelletizing behavior and fired pellet quality, including compressive strength and reduced fines generation.<\/p>\n\n\n\n<h2 id=\"6-research-and-industrial-development-of-modified-bentonite\" class=\"wp-block-heading\" data-block-type=\"core\">6. Research and Industrial Development of Modified Bentonite<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Research into composite and modified binders has increasingly focused on combining organic polymers with bentonite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Studies have shown that adding small amounts of organic components to bentonite can improve particle dispersion and strengthen the interaction between bentonite and iron ore particles.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">For example, carboxymethyl cellulose (CMC) and other organic materials have been investigated for their interaction with montmorillonite, the primary clay mineral responsible for bentonite&#8217;s binding properties.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The underlying principle is that improved dispersion and stronger particle interactions can allow a smaller quantity of modified bentonite to achieve the same or better pelletizing performance.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This direction is particularly attractive for pellet plants facing one or more of the following challenges:<\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\">High bentonite consumption<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Low pellet iron grade<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Excessive gangue content<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Poor green pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">High return fines<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Difficult pelletizing behavior<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Increasing raw material costs<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Demand for higher-quality blast furnace or DR pellets<\/li>\n<\/ul>\n\n\n\n<h2 id=\"7-jianjie-bentonite-modifier-for-iron-ore-pelletizing\" class=\"wp-block-heading\" data-block-type=\"core\">7. Jianjie Bentonite Modifier for Iron Ore Pelletizing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Jianjie has developed a bentonite modifier designed specifically to improve the efficiency of bentonite used in iron ore pelletizing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Rather than completely replacing bentonite, the modifier is incorporated into conventional bentonite before the binder is added to the iron ore concentrate.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The recommended addition is typically <strong>1\u20135% of the bentonite<\/strong>, depending on ore characteristics, bentonite quality, and pelletizing conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The modified bentonite is then mixed with the iron ore concentrate during the normal pelletizing process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Potential benefits include:<\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\">Lower bentonite consumption<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Improved green pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">More stable dry pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Better pelletizing performance<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Faster ball formation<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">More uniform pellet size<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Smoother pellet surface<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Improved fired pellet strength<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Reduced fines generation<\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\">Potentially higher pellet iron grade<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">For plants looking to reduce bentonite consumption without completely changing their existing pelletizing process, this approach can provide a relatively simple way to optimize the current binder system.<\/p>\n\n\n\n<h2 id=\"8-why-consider-a-bentonite-modifier-instead-of-completely-replacing-bentonite\" class=\"wp-block-heading\" data-block-type=\"core\">8. Why Consider a Bentonite Modifier Instead of Completely Replacing Bentonite<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">For many pellet plants, completely changing the binder system may require extensive testing and process adjustments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">A modified bentonite approach can be more practical because it works with the existing pelletizing process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The basic process is:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\" data-block-type=\"core\">\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Existing Bentonite \u2192 Add Modifier \u2192 Mix Thoroughly \u2192 Add to Iron Ore Concentrate \u2192 Pelletizing \u2192 Drying \u2192 Induration<\/strong><\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This means pellet producers can focus on optimizing the existing binder system rather than redesigning the entire pelletizing process.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The actual dosage and performance should, however, be determined through laboratory and industrial trials because ore mineralogy, particle size, moisture, bentonite quality, pelletizing equipment, and induration conditions can all affect binder performance.<\/p>\n\n\n\n<h2 id=\"9-the-future-of-iron-ore-pellet-binders\" class=\"wp-block-heading\" data-block-type=\"core\">9. The Future of Iron Ore Pellet Binders<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">As steelmakers worldwide pursue higher productivity, lower emissions, and better raw material efficiency, the quality of iron ore pellets will become increasingly important.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">The future of pellet binders is therefore unlikely to be based simply on using more binder.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Instead, the industry is moving toward:<\/p>\n\n\n\n<ul class=\"wp-block-list\" data-block-type=\"core\">\n<li class=\"\" data-block-type=\"core\"><strong>Kurangi dosis perekat<\/strong><\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\"><strong>Lower gangue input<\/strong><\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\"><strong>Higher pellet iron grade<\/strong><\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\"><strong>Better green and fired pellet strength<\/strong><\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\"><strong>More stable pelletizing operations<\/strong><\/li>\n\n\n\n<li class=\"\" data-block-type=\"core\"><strong>Better compatibility with blast furnace and direct reduction processes<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Bentonite will likely remain an important component of pelletizing binder systems. However, improving its efficiency through modification and composite binder technology can help overcome some of the limitations associated with conventional high-dosage bentonite.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">For pellet plants, the key question is no longer simply:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>\u201cWhich binder should we use?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">It is increasingly:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>\u201cHow can we achieve the required pellet quality with less binder and less gangue?\u201d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Modified bentonite provides one potential answer.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\" data-block-type=\"core\">Kesimpulan<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">Bentonite has played an important role in the development of modern iron ore pelletizing because of its strong binding performance, availability, and ability to improve green and dry pellet strength.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">However, increasing demand for high-grade pellets, pressure to reduce slag and energy consumption, and the need to optimize raw material costs are encouraging pellet producers to reduce conventional bentonite consumption.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">This trend is relevant across major ironmaking regions, from China and India to Brazil, Europe, Russia, and the Middle East, although the specific requirements differ by ore type and ironmaking route. Global steel production remains heavily concentrated in Asia, while other regions are developing high-quality pellet and direct reduction capacity.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><strong>Modified and composite bentonite systems offer a practical pathway to improve binder efficiency without completely replacing conventional bentonite.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">By reducing bentonite consumption while maintaining pellet strength and thermal stability, this technology can help pellet plants move toward <strong>higher iron grade, lower gangue input, more stable pelletizing, and more efficient ironmaking.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\">For pellet producers evaluating their current bentonite consumption, the most practical starting point is a controlled laboratory test using the plant&#8217;s own iron ore concentrate and bentonite, followed by an industrial trial to determine the optimum modifier dosage and process conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" data-block-type=\"core\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Learn how bentonite is used in iron ore pelletizing, its impact on pellet quality and iron grade, and how bentonite modifiers can reduce dosage and improve pellet performance.<\/p>","protected":false},"author":1,"featured_media":20687,"comment_status":"open","ping_status":"open","sticky":false,"template":"wp-custom-template-single-posts-with-sidebar","format":"standard","meta":{"nf_dc_page":"","footnotes":""},"categories":[40,59,39],"tags":[],"class_list":["post-20649","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-binders","category-blog"],"jetpack_featured_media_url":"https:\/\/www.jianjiebinder.com\/wp-content\/uploads\/2026\/08\/bentonite-in-iron-ore-pelletiizng.jpg","_links":{"self":[{"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/posts\/20649","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/comments?post=20649"}],"version-history":[{"count":11,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/posts\/20649\/revisions"}],"predecessor-version":[{"id":20688,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/posts\/20649\/revisions\/20688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/media\/20687"}],"wp:attachment":[{"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/media?parent=20649"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/categories?post=20649"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jianjiebinder.com\/id\/wp-json\/wp\/v2\/tags?post=20649"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}