从煤矸石中提取有效硅的研究  

Experiment research on available silicone extracted from coal refuse

作　　者：侯晨涛[1] 王生全[1] 谢宵斐 

机构地区：[1]西安科技大学地质与环境工程系,陕西西安710054

出　　处：《煤炭科学技术》2008年第3期110-112,共3页Coal Science and Technology

基　　金：陕西省教育厅资助项目(06JK238)

摘　　要：为了从煤矸石中提取出植物可吸收的有效硅,针对韩城矿区高岭岩煤矸石样品,在550~1150℃的煅烧温度和0.5~5h燃烧时间范围内确定最佳温度和时间后,通过正交试验确定了煤矸石与石灰石、烧碱、纯碱等添加剂的最佳比例。试验结果表明,煤矸石与石灰石、纯碱、烧碱按1.00∶0.50∶0.10∶0.05的比例混合,700℃烧结后窑温保持2h,是提取有效硅的最佳方案,在此条件下,有效硅的溶出量可达19.65%以上。In order to extract the available silicone absorbable by the plant, with the coal refuse samples of Kaolinite in Hancheng Mining Area, at the temperature and time optimized from the calcination temperature of 550 ~ 1 150℃ and the 0.5 ~ 5 h, an optimum percentage of the coal refuse with limestone, caustic soda, soda ash and other additives was determined with the orthogonal test. The test results showed that the mixing rate for the coal refuse with the limestone, caustic soda and soda ash was 1.00∶0.50∶0.10∶...

关 键 词：煤矸石 煅烧 有效硅 正交试验 

分 类 号：TD849.5[矿业工程—煤矿开采]