矿冶工程
礦冶工程
광야공정
Mining and Metallurgical Engineering
2015年
4期
98-100,103
,共4页
刘泽%陈曼%刘化江%韦江林
劉澤%陳曼%劉化江%韋江林
류택%진만%류화강%위강림
卡林型金矿%黄铁矿%氧化焙烧%氰化浸出
卡林型金礦%黃鐵礦%氧化焙燒%氰化浸齣
잡림형금광%황철광%양화배소%청화침출
Carlin-type gold deposit%pyrite%oxidizing roasting%cyanide leaching
针对贵州某卡林型金矿，采用氧化焙烧预处理矿物、碱性环境下氰化浸出工艺提金。所得最佳焙烧条件为：焙烧温度750℃、焙烧时间2 h，此时硫、碳、砷的脱除率分别为99．95％，95．83％和99．91％；焙烧后矿物在氰化物浓度3 g／L条件下浸出24 h，金浸出率为93．81％。
針對貴州某卡林型金礦，採用氧化焙燒預處理礦物、堿性環境下氰化浸齣工藝提金。所得最佳焙燒條件為：焙燒溫度750℃、焙燒時間2 h，此時硫、碳、砷的脫除率分彆為99．95％，95．83％和99．91％；焙燒後礦物在氰化物濃度3 g／L條件下浸齣24 h，金浸齣率為93．81％。
침대귀주모잡림형금광，채용양화배소예처리광물、감성배경하청화침출공예제금。소득최가배소조건위：배소온도750℃、배소시간2 h，차시류、탄、신적탈제솔분별위99．95％，95．83％화99．91％；배소후광물재청화물농도3 g／L조건하침출24 h，금침출솔위93．81％。
After a pre?treatment of oxidizing roasting, the gold ore from a Carlin?type deposit of Guizhou Province was leached to recover gold by sodium cyanide in an alkaline solution. The results show that, with optimum roasting temperature of 750 ℃ and roasting duration of 2 h, the removal rates of sulfide, carbide and arsenide attained 99.95%, 95.83% and 99.91%, respectively. With the cyanide concentration of 3 g/L, the gold leaching rate of the roasted ore, after 24 h?leaching, reached 93.81%.
