摘要
云南某锌窑渣Cu含量1.47%,Ag含量312 g/t,同时,窑渣中碳含量高达23.12%,为综合回收其中的Cu、Ag等有价金属进行了选矿试验研究.对浮选条件试验进行了研究.确定了最佳浮选条件并在此基础上进行了浮选闭路试验,结果表明,采用单一浮选工艺处理该窑渣Cu、Ag很难富集,铜精矿品位较低,并最终确定了"脱碳浮选—铜浮选—铜精矿浸出"的联合工艺流程,得到最终铜精矿Cu品位为11.83%,铜精矿含Ag品位为2 616 g/t,Cu、Ag的综合回收率分别为72.03%和75.06%,达到了综合回收窑渣中Cu、Ag的目的.采用联合工艺流程处理该窑渣避免了单一浮选工艺的局限性,极大地提高了铜精矿的品位.
To comprehensively utilize the copper and silver of a zinc kiln slag in Yunnan with copper of 1.47%,silver of 294 g/t,and carbon of 23.12%,we determined the optimum flotation conditions and carried out theclosed circuit test.It was difficult to enrich the copper and silver by the single flotation process,so the combinedprocess of carbon flotation-copper flotation-leaching was used to the kiln slag.Finally,the copper concentratewas obtained.The copper grade is 11.83% and the silver grade is 2 616 g/t.The comprehensive recovery rates ofcopper and silver reach 72.03% and 75.06%,respectively.The use of combined process to the zinc kiln slagbreaks through the limitation of single flotation process and greatly improves the grade of copper concentrate.
出处
《武汉工程大学学报》
CAS
2016年第4期329-332,342,共5页
Journal of Wuhan Institute of Technology
基金
贵州省科技计划黔科合GZ字〔2014〕3014
关键词
锌窑渣
浮选
联合工艺
综合回收
zinc kiln slag
flotation
combined process
comprehensive utilization
作者简介
陈龙，硕士研究生．E-mail：longag099@126．com
通讯作者：高利坤，博士，副教授．E-mail：likun_gao@126．com
