高铜高砷金精矿氧化焙烧还原熔炼试验  

Study on Gold Concentrate Bearing High Copper and Arsenic by Oxidative Roasting-Reduction Smelting

作　　者：黄海辉 王为振 常耀超 徐晓辉 靳冉公 HUANG Hai-hui;WANG Wei-zhen;CHANG Yao-chao;XU Xiao-hui;JIN Ran-gong(BGRIMM Technology Group,Beijing 1001G0,China)

机构地区：[1]北京矿冶科技集团有限公司,北京100160

出　　处：《有色金属（冶炼部分）》2018年第11期19-22,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家高技术研究发展计划(863计划)项目(2011AA06A104)

摘　　要：采用氧化焙烧—还原熔炼工艺对某高铜高砷金精矿进行研究。试验结果表明,该金精矿在800℃氧化焙烧2h得到的氧化焙砂,在SiO2添加量35%,无烟煤添加量8%,1 450℃还原熔炼60min时,渣计铜回收率95.70%,渣计金回收率99.62%。还原熔炼过程中,硫、砷主要富集在合金中。Oxidative roasting-reduction smelting tests were carried out on high copper arsenic gold concentrate.The results show that calcine produced by oxidizing roasting of gold concentrate at 800℃ for 2 hwas reduction smelted at 1 450 ℃ for 60 min with addition of 35% of SiO2 and 8% of anthracite.Copper recovery is 95.70% and gold recovery is 99.62%.Sulfur and arsenic are mainly concentrated in alloy during reduction smelting process.

关 键 词：高铜砷金精矿 氧化焙烧 还原熔炼 回收率 

分 类 号：TF831[冶金工程—有色金属冶金]