某次冰铜中有价金属加压浸出试验研究
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摘要
以某厂次冰铜为原料,进行有价金属铜、锌、铟浸出实验。探究磨矿时间、液固比、氧气压力、初始酸浓度、搅拌速率、分散剂添加量对次冰铜中铜、锌、铟浸出率的影响。结果表明:最优条件下,某厂次冰铜中铜、锌、铟浸出率分别能达到95.32%、80.68%、70.25%;最优工艺为,磨矿时间7.5 min、液固比4∶1、氧气压力1.0 MPa、初始酸浓度20%、搅拌速率600 r/min、分散剂添加量5%。
The leaching test of the valuable metals copper,zinc,and indium is carried out using one batch copper matte as the raw material.In order to explore the influence of ore grinding time,liquid- solid ratio,oxygen pressure,the initial acid concentration,mixing speed,dispersing agent additive amount to the leaching efficiency of zinc,zinc,indium in the batch copper matte.the results show:under the optimal conditions,the leaching rate of copper,zinc,indium in one batch copper matte can reach to 95.32%,80.68%,70.25%separately;the optimal process conditions are:ore grinding time is 7.5min,the liquid-solid ratio is 4∶ 1,the oxygen pressure is 1.0 MPa,the initial acid concentration is 20%,the mixing speed is 600 r /min,the additive amount of dispersing agent is 5%.
The leaching test of the valuable metals copper,zinc,and indium is carried out using one batch copper matte as the raw material.In order to explore the influence of ore grinding time,liquid- solid ratio,oxygen pressure,the initial acid concentration,mixing speed,dispersing agent additive amount to the leaching efficiency of zinc,zinc,indium in the batch copper matte.the results show:under the optimal conditions,the leaching rate of copper,zinc,indium in one batch copper matte can reach to 95.32%,80.68%,70.25%separately;the optimal process conditions are:ore grinding time is 7.5min,the liquid-solid ratio is 4∶ 1,the oxygen pressure is 1.0 MPa,the initial acid concentration is 20%,the mixing speed is 600 r /min,the additive amount of dispersing agent is 5%.
引文
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[2]蒋朝金,黄海飞,杨跃新.铅冰铜盐酸浸出试验研究[J].湖南有色金属,2015,31(4):36-40.
[3]彭建蓉,李怀仁,谢天鉴,等.铜渣氧压酸浸制备硫酸铜的研究[J].有色金属(冶炼部分),2013(8):49-52.
[4]杨明,狄聚才.底吹炉处理铜浮渣的半工业试验[J].中国有色冶金,2012(8):22-25.
[5]宋兴诚,杨继生,王建伟,等.铅冰铜顶吹炉富氧吹炼生产粗铅和冰铜工艺[P].中国专利:CN103938990A,2014-03-23.
[6]刘缘缘,黄自力,秦庆伟.酸浸-萃取法从炉渣中回收铜锌的研究[J].矿业工程,2012,32(2):76-79.
[7]彭耀东,覃攀,冉祎,等.西门子工艺制备多晶硅体系的热力学分析[J].河南化工,2012,29(4):31-34.
[8]王火印,吴玲,李永祥,等.湿法富集铅冰铜中的贵金属[J].湿法冶金,2014,33(1):16-19.
[9]吴跃东,范兴祥,董海刚,等.氧化焙烧-酸浸法从铜浮渣中提取铜[J].有色金属(冶炼部分),2013(8):5-7.
[10]倪源.氧压酸浸处理铅冰铜的试验研究[D].昆明:昆明理工大学,2015.