湿法冶金
濕法冶金
습법야금
HYDROMETALLURGY OF CHINA
2015年
4期
321-323
,共3页
王威%张博%曹耀华%柳林%刘红召%高照国%杨华玲
王威%張博%曹耀華%柳林%劉紅召%高照國%楊華玲
왕위%장박%조요화%류림%류홍소%고조국%양화령
金冶炼渣%焙烧%硫酸%浸出%铁%金%银
金冶煉渣%焙燒%硫痠%浸齣%鐵%金%銀
금야련사%배소%류산%침출%철%금%은
smelting tailing%roasting%sulfuric acid%leaching%iron%gold%silver
研究了从某金冶炼厂金冶炼渣中回收铁、金、银。考察了硫酸浓度、浸出温度和浸出时间对铁浸出率的影响，以及液固体积质量比、浸出时间、氰化钠用量对金、银浸出率的影响。试验结果表明：在硫酸浓度10．8 mol／L、浸出温度90℃、浸出时间2 h、液固体积质量比2．5∶1条件下，金冶炼渣中铁浸出率为90．85％；在液固体积质量比3∶1、浸出时间48 h、体系pH≈11、氰化钠用量10 kg／t条件下，铁浸出尾渣中金、银浸出率分别为72．8％和62．4％。
研究瞭從某金冶煉廠金冶煉渣中迴收鐵、金、銀。攷察瞭硫痠濃度、浸齣溫度和浸齣時間對鐵浸齣率的影響，以及液固體積質量比、浸齣時間、氰化鈉用量對金、銀浸齣率的影響。試驗結果錶明：在硫痠濃度10．8 mol／L、浸齣溫度90℃、浸齣時間2 h、液固體積質量比2．5∶1條件下，金冶煉渣中鐵浸齣率為90．85％；在液固體積質量比3∶1、浸齣時間48 h、體繫pH≈11、氰化鈉用量10 kg／t條件下，鐵浸齣尾渣中金、銀浸齣率分彆為72．8％和62．4％。
연구료종모금야련엄금야련사중회수철、금、은。고찰료류산농도、침출온도화침출시간대철침출솔적영향，이급액고체적질량비、침출시간、청화납용량대금、은침출솔적영향。시험결과표명：재류산농도10．8 mol／L、침출온도90℃、침출시간2 h、액고체적질량비2．5∶1조건하，금야련사중철침출솔위90．85％；재액고체적질량비3∶1、침출시간48 h、체계pH≈11、청화납용량10 kg／t조건하，철침출미사중금、은침출솔분별위72．8％화62．4％。
The comprehensive recovery of iron ,gold and silver from a roasting cyanide tailing was studied .The effects of sulfuric acid concentration ,leaching temperature and leaching time on leaching rate of iron were examined .The results indicate that the leaching rate of iron is 90 .85% under the conditions of sulfuric acid concentration of 10 .8 mol/L ,leaching temperature of 90 ℃ ,leaching time of 2 h and liquid to solid ratio of 2 .5 .The acid leaching residue was leached again using cyanide ,and the recoveries of Au and Ag are 72 .8% and 62 .4% ,respectively under the conditions of liquid to solid ratio of 3∶1 ,leaching time of 48 h ,system pH of about 11 and NaCN usage of 10 kg/t .
