煤系高岭土煅烧与微生物提质试验研究  

Experimental Study on Calcination and Microbial Quality Improvement of Coal-series Kaolin

作　　者：闫爽 刘世峰 王冬旭 YAN Shuang;LIU Shifeng;WANG Dongxu(College of Mining Engineering, Liaoning Technical University, Fuxin 123000, China)

机构地区：[1]辽宁工程技术大学矿业学院,阜新123000

出　　处：《硅酸盐通报》2020年第4期1219-1223,共5页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学青年基金(51604140)。

摘　　要：以辽宁凌源煤系高岭土为原料,进行提质试验研究。通过矿物组成、扫描电镜分析得出,主要杂质为碳和铁,先通过煅烧的方法去除碳质,试验结果表明,当煅烧温度950℃、恒温时间2.5 h、升温时间3 h时煅烧白度可达86.66%,再利用生物产出的混合酸设计正交试验去除铁杂质,在最佳试验条件下白度达到89.25%,符合高级煅烧高岭土的质量要求。The quality improvement experiment of lingyuan coal-series kaolin in liaoning province was carried out.It’s known that the main impurities is carbon and iron through mineral composition analysis and scanning electron microscopy analysis.First removed the carbon by using the method of calcination.The test results show that when the calcination temperature is 950℃,constant temperature time is 2.5 h,heating time is 3 h,the calcination whiteness can reach 86.66%.Using biological production of acid mixture designed orthogonal experiment to remove iron impurities.The whiteness reaches 89.25%under the best test condition,conform to the requirements of the advanced quality of calcined kaolin.

关 键 词：煤系高岭土 提质 生物除铁 正交试验 

分 类 号：TD925[矿业工程—选矿]