Separation tests on the components such as Al2O3 in the coal gangue by chlorhydric acid leaching is carried out in the 500ml acid leaching equipment. Investigations are conducted into the characteristics of the coal gangue and the technological parameters affecting the extraction yield of the components such as A12O3 in the coal gangue are investigated. Not only chemical components but also mineral compositions in the coal gangue affecting the extraction yield are given. The technological parameters of opti...
【基金】
煤炭部资助
【分类号】
TQ531
【正文快照】
l 前言 目前我国煤矿地面积存煤歼石约】6亿吨,占地13万亩,今后每年将继续排放煤歼石1.3亿吨,占地1万多亩,这些煤歼石不仅占去大量农田,而且污染大气、水体,给生态环境和人们生活带来许多危害。综合利用煤歼石已是当前人扣必需解决的课题之一。 大多数煤歼石属于粘土岩类歼石,?
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