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印江木黄金矿区产于杨子准地台黔北台隆梵净山穹窿张家堰背斜之NE翼末端。金一般通过重选—混汞法不能得到很好的回收,绝大多数显微金则遗留在尾矿中,从而造成金矿资源的极大浪费。为了解决以上难题,在重选—混汞法之后,采用浮选工艺,富集金精矿,使金精矿含金品位达40～50g/t以上。研究样品为金精矿,通过化学分析、物相分析、光谱分析、浸取试验以及重砂分选、显微镜系统鉴定等工作,已初步查明金精矿中金的共生关系和赋存特征。为本矿区金矿的选冶工艺作了进一步地探讨。
Yin Jiangmu gold mining area is produced in Yangzi prosperous platform north of Taiwan Fanjingshan Fanjingshan dome Zhangjiayan anticline of the end of the NE wing. Gold generally re-election - amalgamation can not be well recovered, the vast majority of micro-gold is left in the tailings, resulting in tremendous waste of gold resources. In order to solve the above problems, after re-election - amalgamation, flotation process, enrichment of gold concentrate, the gold concentrate gold grade of 40 ~ 50g / t or more. The study sample is gold concentrate. The symbiosis and occurrence characteristics of gold in gold concentrate have been initially identified through chemical analysis, phase analysis, spectral analysis, leaching test, heavy sand sorting and microscopic system identification. The ore for the mining and metallurgy process made further discussion.