CAJ | 학술논문

广西合浦某高岭土属于沉积型高岭土，原矿中含钛矿物以无磁性的锐钛矿为主，除铁、除钛难度大。试验围绕-2μm矿样降铁、钛及提高白度，进行了高梯度磁选、离心选矿机分选、浮选、选择性絮凝等多种方案探索。最终采用除砂-分级-离心选矿机除铁、钛-分级-化学漂白的工艺流程，涂料级产品取得了较好指标：-2μm 含量大于90％、Al2O335．11％、SiO246．35％、TFe 0．78％、TiO20．89％、SO3小于0．5％、高岭石大于85％、伊利石小于15％、石英极微、白度80．4，同时获得了较高品质的石英砂和陶瓷原料，带来可观经济效益。
엄서합포모고령토속우침적형고령토，원광중함태광물이무자성적예태광위주，제철、제태난도대。시험위요-2μm광양강철、태급제고백도，진행료고제도자선、리심선광궤분선、부선、선택성서응등다충방안탐색。최종채용제사-분급-리심선광궤제철、태-분급-화학표백적공예류정，도료급산품취득료교호지표：-2μm 함량대우90％、Al2O335．11％、SiO246．35％、TFe 0．78％、TiO20．89％、SO3소우0．5％、고령석대우85％、이리석소우15％、석영겁미、백도80．4，동시획득료교고품질적석영사화도자원료，대래가관경제효익。
Because certain Kaolin ore in Hepu of Guangxi is the sedimentary kaolin,and the Ti-bearing minerals in the raw ore are mainly nonmagnetic anatases,it is difficult to remove the iron and titanium.In order to reduce iron and titanium,and also improve whiteness of -2μsample ore,several exploring solutions such as high-gradient magnetic separation,sorting by centrifugal separator,flotation and selective flocculation have been carried out in this experiment.Finally,the process flows as desanding-grading-removing iron and titanium by centrifugal separator-grading-chemical bleaching have been adopted.As a result ,the coating grade products reach a better index:-2μcontent over 90%,Al2O3 35.11%,SiO246. 35%,TFe 0.78 %,TiO2 0.89%,SO3<0.5%,kaolinite >85%,illite <15%,very little quartz, whiteness 80.4.At the same time,it gets the higher quality silica sand and ceramic raw materials ,which bring considerable economic benefits.