我国典型高岭土的杂质赋存状态及提纯方法研究进展  

Research Progress on Impurity Occurrence State and Purification Method of Typical Kaolin in China

作　　者：范家航 姜悦纳 刘亦菲 刘贤杰 刘明勇 傅梁杰 闵鑫[1] 黄朝晖[1] FAN Jiahang;JIANG Yuena;LIU Yifei;LIU Xianjie;LIU Mingyong;FU Liangjie;MIN Xin;HUANG Zhaohui(School of Materials Science and Technology,China University of Geosciences(Beijing),Beijing 100083,China;Faculty of Materials and Chemistry,China University of Geosciences(Wuhan),Wuhan 430074,China;Engineering Research Center of Nano-Geomaterials of Ministry of Education,Wuhan 430074,China)

机构地区：[1]中国地质大学(北京)材料科学与工程学院,北京100083 [2]中国地质大学(武汉)材料与化学学院,湖北武汉430074 [3]纳米矿物材料及应用教育部工程研究中心,湖北武汉430074

出　　处：《金属矿山》2025年第2期95-105,共11页Metal Mine

基　　金：国家重点研发计划项目(编号:2022YFC2904802)。

摘　　要：我国高岭土资源丰富,立足典型资源类型和杂质赋存状态,从物理法、化学法、微生物法三个方面归纳、总结了近年来国内外在高岭土提纯方法上的研究进展,阐述了各方法的效果及优缺点。结果表明:物理法一般操作简便,成本较低,可除去铁、钛、石英和碳质有机质等多种杂质,但除杂效果受限;化学法对铁、钛杂质去除效果较好,但需使用化学试剂,易引发环境污染问题;微生物法可有效降低高岭土中的铁杂质含量,且不产生二次污染,具有绿色环保优势,但除杂周期较长,现阶段难以实现规模化应用。未来应结合计算材料学,深入研究高岭土主晶相和杂质多相界面的结合特征,开发多功能场耦合提纯新技术,并开展微生物法生产周期与除杂效率优化研究,以期绿色高效生产高品质的高岭土,助推我国高岭土相关产业实现转型升级。China is rich in kaolin resources.Based on typical resource types and impurity occurrence states,the research progress of kaolin purification methods at home and abroad in recent years is summarized from three aspects:physical method,chemical method and microbial method.The effects,advantages and disadvantages of each method are described.The results show that the physical method is generally easy to operate and has low cost.It can remove various impurities such as iron,titanium,quartz and carbonaceous organic matter,but the impurity removal effect is limited.The chemical method has a good effect on the removal of iron and titanium impurities,but it needs to use chemical reagents,which is easy to cause environmental pollution problems.The microbial method can effectively reduce the iron impurity content in kaolin without secondary pollution,and has the advantages of green environmental protection.However,the impurity removal cycle is long,and it is difficult to achieve large-scale application at this stage.In the future,the combination characteristics of the main crystal phase of kaolin and the multiphase interface of impurities should be further studied in combination with computational materials science,and the new technology of multi-functional field coupling purification should be developed,and the optimization of microbial production cycle and impurity removal efficiency should be carried out in order to produce kaolin with high quality in a green and efficient way,and to promote the transformation and upgrading of kaolin-related industries in China.

关 键 词：高岭土提纯 杂质赋存状态 物理法 化学法 微生物法 

分 类 号：TD97[矿业工程—选矿]