宜昌煤系高岭土低温煅烧降低COD的实验研究  

Experimental Study of Low Temperature Calcination of Yichang Coal-series Kaolin for Decreasing Its COD

作　　者：方继敏[1] 郜静[1] 唐靖炎[2] 尹旭东 马涛[1] 李银银[1] 

机构地区：[1]武汉理工大学资源与环境工程学院,湖北武汉430070 [2]苏州非金属矿工业设计研究院,江苏苏州市215004 [3]宜昌慧龙科技开发有限公司,湖北宜昌市443004

出　　处：《矿业研究与开发》2007年第3期40-42,共3页Mining Research and Development

基　　金：教育部重点科学研究项目(02052)

摘　　要：系列选矿处理后的宜昌煤系高岭土的煅烧实验表明,经过500℃,2 h低温煅烧后,矿样的COD由原来的2892.08 ppm降为578.13 ppm达到了用于玻纤用高岭土的原料要求,同时矿样的晶体结构中的羟基没有大量失去,晶体结构没有发生明显改变,仅产生了有序度增高,结晶程度更高的微细变化。Through the combustion experiment on the coal series kaolin by mill run disposal, we realize that COD of the core sample decrease from 2892.08 ppm to 578.13 ppm after it is calcined at the temperature of 500℃ in 2 hours and accord the material demand of fibreglass production. At the same time, the hydroxyl in the crystal structure of the core sample doesnt lose in the gross and only changes delicately that the degree of order increases and the crystallinity increases.

关 键 词：煤系高岭土 低温煅烧 COD 晶体结构 

分 类 号：TD873.2[矿业工程—非金属矿开采]