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新疆某高硫高砷金精矿的预处理氰化浸金试验研究董岁明1,周春娟1(1.陕西省西安市长安大学环境科学与工程学院)摘 要:对新疆某高硫高砷金精矿,加入ZQD助浸剂预处理后氰化浸出,金氰化浸出率由未经ZQD预处理的47.5%增加到89.1%;加入固化剂CaO-Na2CO3二段焙烧(一段450℃,焙烧1 h,二段650℃,焙烧2 h)后,再进行助浸预处理氰化,金氰化浸出率可达95.1%,硫固化率达到80.5%.关键词:高硫高砷金精矿; 预处理; 助浸; 氰化; 金浸出率......
提高龙头山金矿低品位矿石回收率试验研究文杨思1,梁艺中2,陈剑锋3(1.广西壮族自治区南宁市广西黄金公司2.广西龙头山金矿3.广西地质矿产测试研究中心)摘 要:在原生产工艺基础上,对氰化尾矿进行浮选,对浮选金精矿进行回收金,银,铜等探索试验.试验取得了金的总回收率93.41%,银64.87%的较好指标,同时综合回收了铜,硫,铁,以实现了资源的充分回收与利用.关键词:低品位金矿石; 氰化; 浮选; 回收率......
从含高铜铅氰化金泥中提取金,银,铜,铅全湿法工艺胡宪1(1.辽宁省丹东市辽宁地质工程职业学院)摘 要:根据试验结果,提出了一种从含高铜铅氰化金泥中提取Au,Ag,Cu,Pb全湿法工艺.该工艺在硫酸介质中加入一种除铜剂对氰化金泥进行预处理,除铜率达98%;预处理后的含金渣浸金,金浸出率达99.5%以上;用混合还原剂还原出的海绵金,经去杂处理,金的成色达到Au-2标准.关键词:含高铜铅氰化金泥; 全湿法工艺; 除铜; 金浸出率......
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吉林省某矿含铅金银矿石浮选工艺试验研究郭宏1,邢洪波1,王学哲1,任洪胜1(1.吉林省长春市吉林省冶金研究院)摘 要:对吉林省某矿含铅金银矿石进行了浮选工艺试验研究.根据矿石性质,针对矿石中金,银,铅品位较低的特点,试验采用原矿混合浮选-精矿氰化-浸渣浮选铅工艺流程,获得回收率:金83.80%,银51.19%,铅77.91%,硫73.59%.采用该工艺流程可实现就地产金银,同时综合回收铅硫.关键词:含铅金银矿石; 浮选; 氰化; 浸渣; 铅; 金......
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, Iran ? Central South University Press and Springer-Verlag Berlin Heidelberg 2011 Abstract: The effects of cyanidation conditions on gold dissolution were studied by artificial neural network (ANN..., respectively. It is verified that the predicted values of ANN coincide well with the experimental results. Key words: artificial neural network; gold; cyanidation; modeling; sensitivity analysis 1......
showed that gold leaching efficiencies of the calcine and the dust were 85.31% and 54.30%, respectively, with direct cyanidation. Contents and existing forms of arsenic and carbon were the main reasons for those differences. The maximum gold leaching efficiencies of the calcine and the dust were 87.70% and 58.60%, respectively, with cyanidation after NaOH pre-leaching. Harmful elements removal......