循环流态化焙烧技术处理低硫精矿  

Study on Circulating Fluid Bed Roasting Process for Low-Sulfur Concentrates

作　　者：李云[1] 王云[1] 袁朝新[1] 孙留根[1] 

机构地区：[1]北京矿冶研究总院冶金所,北京100044

出　　处：《有色金属（冶炼部分）》2009年第1期14-17,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金："十一五"国家科技攻关计划课题(2006BAB02A15)

摘　　要：采用循环流态化焙烧技术预处理低硫金精矿与低硫铜精矿,再进行氰化提金或酸浸提铜。结果表明,对含铜含砷低硫金精矿,铜的浸出率达89%,金的浸出率达93%,对低硫铜精矿,焙烧温度为580~630℃,铜的酸浸出率能达98%以上,焙砂固硫率达80%以上。The circulating fluid bed（CFB） technology is used to pretreat low-sulfur concentrates.The results indicate that the extraction rate of gold and copper are 93% and 89% respectively for low-sulfur gold concentrates.The acidic leaching rate of copper is more than 98% and more than 80% sulphur is solidified into the calcine when the low-sulfur copper concentrates are roasted at 580~630℃.

关 键 词：难处理矿石 低硫精矿 循环流态化 焙烧 

分 类 号：TF831[冶金工程—有色金属冶金]