湿法冶金Issue(2)：121-123,3.DOI:10.13355/j.cnki.sfyj.2014.02.13
从湿法炼锌渣中回收银和硫
Recovery of Sulfur and Silver From Zinc Smelting Residue
摘要
Abstract
Recovery of silver and sulfur from zinc smelting residue by dimethylbenzene leaching sulfur -roasting-sulfuric acid leaching impurities-cyanide leaching silver process is investigated .T he result show that the leaching rate of sulfur is 96 .40% under the conditions of reaction temperature of 95 ℃ , reaction time of 15 min and the ratio between liquid volume and solid mass of 5 ∶ 1 .The roasting conditions of sulfur leaching residue are adding sodium hydroxide of 1% into the residue ,roasting temperature of 630 ℃ ,roasting time of 2 h .T he conditions of leaching impurities using sulfuric acid are the ratio between of liquid volume and solid mass ,system pH of 1 .0 ,reaction temperature of 95℃ ,reaction time of 3 h .The cyanide leaching silver under the conditions of system pH of 9 .5-11 .5 , the ratio between liquid volume-solid mass of 3∶1 ,sodium cyanide concentration of 2 g/L ,reaction time of 24 h ,the leaching rate of silver is 78 .50% .关键词
二甲苯/湿法炼锌渣/硫/银/回收Key words
dimethylbenzene/zinc smelting residue/sulfur/silver/recovery分类
矿业与冶金引用本文复制引用
曾斌,胡良辉,毛永星,余攀..从湿法炼锌渣中回收银和硫[J].湿法冶金,2014,(2):121-123,3.基金项目
福建省区域科技重大合作项目（2011H4025）。 （）
