摘要
本文以铅阳极泥火法冶炼产出的高铋冶炼渣为研究对象,通过工艺矿物学分析方法,对高铋渣和湿法浸出后尾渣的主要物相组成及元素赋存状态进行研究,并以工艺矿物学为基础,进行冶炼工艺优化试验研究。试验研究发现,高铋渣中铋主要以铋铅渣相和氧化铋渣相的形式存在,铜主要以氯化亚铜的形式存在;浸出过程中,氯化亚铜沉淀的生成是造成铜浸出率较低的主要原因,通过调节浸出电位至420 mV,人们可以将高铋渣的铜浸出率由77.84%提高至98.55%。
In this paper,the high-bismuth smelting slag produced by pyrometallurgical smelting of lead anode slime is used as the research object,through process mineralogical analysis method,the main phase composition and element occurrence state of high-bismuth slag and wet leaching tailings are studied,based on process mineralogy,the smelting process optimization test research is carried out.Experimental research finds that the bismuth in the high-bismuth slag mainly exists in the form of bismuth lead slag phase and bismuth oxide slag phase,and copper mainly exists in the form of cuprous chloride;during the leaching process,the formation of cuprous chloride precipitation is the main reason for the lower copper leaching rate,by adjusting the leaching potential to 420 mV,people can increase the copper leaching rate of the high-bismuth slag from 77.84% to 98.55%.
作者
高腾跃
蔡明明
李光胜
黄发波
朱幸福
GAO Tengyue;CAI Mingming;LI Guangsheng;HUANG Fabo;ZHU Xingfu(Metallurgical Laboratory Branch of Shandong Gold Mining Technology Co.,Ltd.,Yantai 261441,China)
出处
《中国资源综合利用》
2021年第4期7-9,16,共4页
China Resources Comprehensive Utilization
基金
矿冶过程自动控制技术国家重点实验室开发基金(BGRIMM-KZSKL-2019-01)。
关键词
工艺矿物学
高铋渣
浸出电位
process mineralogy
high-bismuth dross
leaching potential
