无氰工艺回收利用黄金尾矿试验研究
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摘要
为了综合回收利用内蒙古某黄金矿山堆浸尾矿中的金、银,采用无氰浸出工艺,选用新型无氰环保药剂作浸出剂,在矿浆质量浓度33%、pH=11、浸出剂用量2.0 kg/t、浸出时间24 h的条件下,金浸出率达52%,银浸出率约59%,浸出指标稳定。该工艺简单易行,可实现尾矿资源的二次利用,并能取得较大的经济效益。
In order to recycle the gold and silver in the tailings of gold ores from Inner Mongolia, a noncyanide leaching process with a new type of non-cyanide leaching agent was used. The pulp density was33%, pH value was 11, the leaching agent was 2.0 kg/t, and the leaching time was 24 h. The results showed that, the gold leaching rate was over 52%,while the silver leaching rate was about 59 %. The leaching indexes were stable. This process is simple and easy to operate, and it not only can recycle the tailing ores, but also can achieve great economic benefits.
In order to recycle the gold and silver in the tailings of gold ores from Inner Mongolia, a noncyanide leaching process with a new type of non-cyanide leaching agent was used. The pulp density was33%, pH value was 11, the leaching agent was 2.0 kg/t, and the leaching time was 24 h. The results showed that, the gold leaching rate was over 52%,while the silver leaching rate was about 59 %. The leaching indexes were stable. This process is simple and easy to operate, and it not only can recycle the tailing ores, but also can achieve great economic benefits.
引文
[1]齐蕊霞,徐小军,刘红东,等.甘肃某金矿堆浸尾矿二次回收试验研究[J].黄金科学技术,2009, 17(6):59-61.
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[5]吕超飞,党晓娥,贠亚新,等.环保型“金蝉”浸出剂处理金精矿的试验研究[J].黄金,2014(5):60-64.
[6]郭鹏志,邱沙,吴艺鹏,等.采用环保“金蝉”药剂浸出老挝某金矿石试验研究[J].中国矿业,2015, 24(12):131-135.
[2]杨剧文,王二军.黄金选冶技术进展[J].矿产保护与利用,2007(4):34-38.
[3]孙广周,单勇,黄斌,等.云南大理氧化金堆浸尾矿二次提金试验研究[J].矿产综合利用,2017(2):95-98.
[4]薛彦辉,薛大兵,周宝友.金尾矿综合利用技术的研究[J].黄金科学技术,2008,16(5):51-53.
[5]吕超飞,党晓娥,贠亚新,等.环保型“金蝉”浸出剂处理金精矿的试验研究[J].黄金,2014(5):60-64.
[6]郭鹏志,邱沙,吴艺鹏,等.采用环保“金蝉”药剂浸出老挝某金矿石试验研究[J].中国矿业,2015, 24(12):131-135.