焙烧氰化尾渣高温氯化提金研究  

Study on Gold Recovering From Roasting Cyanidation Residue by Chloride Volatilization

作　　者：陈勇[1] 

机构地区：[1]紫金矿业集团股份有限公司,福建上杭362300

出　　处：《中国资源综合利用》2015年第10期22-25,共4页China Resources Comprehensive Utilization

摘　　要：采用高温氯化法对难处理精矿焙烧氰化尾渣进行提金试验研究。试验考察了氯化焙烧温度、氯化焙烧时间、氯化剂添加量和干球强度等影响因素。研究结果表明,在氯化焙烧温度1 100℃、焙烧1h、Ca Cl2添加量为1%的条件下,Au、Ag的挥发率分别达到约95%、60%。A test of pelletizing- chloride volatilizing was performed on calcine cyanide tailings of refractory gold concentrate. The effecting factors including roasting temperature, roasting time, chlorinating agent adding amount and pellet strength were investigated.Results indicated that the optimum conditions is： roasting temperature of 1 100 ℃, roasting time of 1 h, CaCl2 addition rate of 1%, volatilization rate of gold and silver can reach 95% arid 60% respectively.

关 键 词：难处理金精矿 焙烧 氰化尾渣 氯化挥发 造球 

分 类 号：TF803.2[冶金工程—有色金属冶金]