非洲某低品质硅藻土提纯试验研究  

Purification of Low Grade Diatomite of Africa

作　　者：曾庆学 贺洋[2] 刘可鑫 Zeng Qingxue;He Yang;Liu Kexin(China Nonferrous Metal Industry’s Foreign Engineering and Construction Co.,Ltd.,Beijing 100029;Suzhou Sinoma Design and Research Institute of Non-metallic Mineral Industry Co.,Ltd.,Suzhou,Jiangsu 215151)

机构地区：[1]中国有色金属建设股份有限公司,北京100029 [2]苏州中材非金属矿工业设计研究院有限公司,江苏苏州215151

出　　处：《非金属矿》2020年第4期78-79,102,共3页Non-Metallic Mines

摘　　要：采用"擦洗-分级-浸出"工艺对非洲某低品质硅藻土进行降钙提纯试验研究,通过X射线衍射(XRD)、扫描电子显微镜(SEM)、比表面积分析(BET)等对提纯前后的样品进行表征。结果表明,提纯样品达到一级土标准,比表面积显著增大,助溶剂的加入能够明显降低浸出酸用量。Africa’s raw diatomite was processed by scrubbing, grading, and leaching. The raw diatomite and purified diatomite was characterized by elemental analysis, SEM, XRD and BET analysis. The results indicated that the purified diatomite was up to first class and its specific surface area increases remarkably, cosolvent can reduce the dosage of acid in leaching.

关 键 词：硅藻土 浸出 提纯 助溶剂 

分 类 号：TD97[矿业工程—选矿]