环保浸金剂在老挝爬奔金矿的应用
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摘要
老挝爬奔金矿采用环保药剂浸金工艺生产实践表明,在磨矿细度为-0.074 mm占90(±2)%,石灰用量为800(±100)g/t,环保药剂用量为420(±20)g/t条件下,最终金浸出率可保持在92%～95%左右,尾渣浸出毒性氰化物浓度符合国家标准GB5085.3-2007要求,采用尾矿干堆、回水循环利用后,尾矿库下游水体中氰化物、pH值、COD和悬浮物均符合国家污水综合排放标准GB8978-1996要求,相对采用氰化浸金工艺每年可节约生产成本559.00万元。
The production practice of gold leaching with environmental friendly agent in Phatem gold mine of Laos showed that,under the condition of grinding fineness of-0.074 mm accounting for 90(±2)%,lime dosage of 800(±100)g/t,leaching agent dosage of 420(±20)g/t,the final gold leaching rate could be kept in 92% to 95%,the concentration of toxic cyanide leached from tailings met the requirements of national standard GB5085.3-2007.After using dry-tailing stacking and recycling water utilization,the content of cyanide,pH value,COD and content of suspended substance in the downstream water of tailings reservoir were all in accordance with the national sewage comprehensive discharge standard GB8978-1996,and the production cost could be reduced by 5.59 million yuan each year.
The production practice of gold leaching with environmental friendly agent in Phatem gold mine of Laos showed that,under the condition of grinding fineness of-0.074 mm accounting for 90(±2)%,lime dosage of 800(±100)g/t,leaching agent dosage of 420(±20)g/t,the final gold leaching rate could be kept in 92% to 95%,the concentration of toxic cyanide leached from tailings met the requirements of national standard GB5085.3-2007.After using dry-tailing stacking and recycling water utilization,the content of cyanide,pH value,COD and content of suspended substance in the downstream water of tailings reservoir were all in accordance with the national sewage comprehensive discharge standard GB8978-1996,and the production cost could be reduced by 5.59 million yuan each year.
引文
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[12]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.
[13]邱沙,郭鹏志,康维刚,等.老挝帕奔金矿选矿工艺选择经济分析[J].有色金属科学与工程,2015,6(6):95-98.
[2]柳耀鹏,卢亮,张宝.低毒环保浸出提金技术研究与应用[J].采矿技术,2018,18(2):46-48.
[3]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,2014,35(5):60-64.
[4]叶兴旺.国外某含砷金精矿浸金工艺研究[J].现代矿业,2014(8):59-60.
[5]孟昭瑞,廖璐,李红立.内蒙古某低品位金矿无氰环保浸出试验[J].现代矿业,2017(5):161-163.
[6]罗真华,吴伯增,陈建明,等.某低品位高硫高碳难处理金矿无氰堆浸工艺工业试验研究[J].有色金属科学与工程,2011,2(5):70-73.
[7]吕超飞,贾佳林,张新岗,等.环保型浸金试剂Sandioss在陕西某金精矿中的应用研究[J].矿冶工程,2015,35(1):92-96.
[8]宋翔宇,李翠芬,李莹,等.一种新型浸金剂的应用试验研究[J].黄金,2014,35(4):62-66.
[9]熊召华,浦江东,胡海平.某难处理金矿石绿色高效联合提金工艺试验研究[J].黄金,2018,39(1):58-61.
[10]宋坤,张呼生,张志华,等.环保药剂在炭浸法提金中的应用[J].现代矿业,2017(3):170-171.
[11]王小生,张福生,陈贵民,等.新型环保提金剂在抱伦金矿的试验研究及应用[J].黄金,2017,38(5):58-61.
[12]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.
[13]邱沙,郭鹏志,康维刚,等.老挝帕奔金矿选矿工艺选择经济分析[J].有色金属科学与工程,2015,6(6):95-98.