文档介绍：第 31卷第 4期矿冶工程 No4
2011年 O8月 M INING AND METALLURGICAL ENGINEERING August2011
11 1
用硫酸化焙烧渣制备氧化铁红的中试研究①
梁绪树,程帅,孙体昌,胡学平
(北京科技大学土木与环境工程学院,北京 100083)
摘要:河南中原黄金冶炼厂为了提高含硫金精矿金的回收率及充分利用矿石中的有价元素,先用硫酸浸出焙烧渣,铁的浸出率
达到 95%以上;浸铁后焙烧渣氰化浸出金,金的浸出率达到 98%以上。铁的浸出液用来生产氧化铁红,产品质量达到国家标准。
关键词:金精矿;氰化渣;氧化铁红
中图分类号:TF11l 文献标识码:A 文章编号:0253—6099(2011)04—0104—05
Pilot Study on Preparing Iron Oxide Red with Roasting Slag
by Sulphatic Acid Leaching
LIANG Xu—shu,CHENG Shuai,SUN Ti—chang,HU Xue—ping
(School of Civil and Environment Engineering,Bering University of Science and100083,China) Technology,Beijing Science of Engineering,BeringEnvironment and University Civil of (School
Abstract:To increase gold recovery sulphur-bearingin gold concentrates andvaluable utilize fully elements thein oresat
Zhongyuan Gold Smelteryin Henan Province,theleached was slagwithroastingsulphuric firstly acid andthe leaching rate
of reachediron above 95% .Then gold was leached by cyanidation with roastingandslag the leachinggoldofreached rate
above98%.Iron oxide red was produced with iron leaching solution,with product qualityup nationalto standard.
Key words:gold concentrate;cyanidation slag;iron oxide red
河南中原黄金冶炼厂是我国“七五”建设重点项
目,是目前国内最大的专业黄金冶炼厂之一。其采用
焙烧一氰化流程,从含金硫精矿中回收硫和金,年处理
精矿 12万吨,产生 8万吨含铁氰化渣,其铁品位在
25%~35%之间,品位较低,综合利用较为困难,同时
有部分金由于包裹在铁矿物中而从渣中损失。该类渣 1)单位为 s/t。
只能以非常低的价格卖给水泥厂作配料,因为运输