CAJ | 학술논문

研究了用硫酸及盐酸-氯化镁体系从锌银渣中浸出银和锌。先用稀硫酸浸出锌银渣中的部分锌、铁，使银、铅富集在浸出渣中，再硫酸浸出渣用盐酸-氯化镁溶液浸出银、锌，然后用铁板置换回收浸出液中的银。考察了氯化镁浓度、浸出温度、浸出时间、液固体积质量比及其他因素对银浸出率的影响。试验结果表明，在最佳条件下，银回收率为85．26％，锌回收率为89．46％。
연구료용류산급염산-록화미체계종자은사중침출은화자。선용희류산침출자은사중적부분자、철，사은、연부집재침출사중，재류산침출사용염산-록화미용액침출은、자，연후용철판치환회수침출액중적은。고찰료록화미농도、침출온도、침출시간、액고체적질량비급기타인소대은침출솔적영향。시험결과표명，재최가조건하，은회수솔위85．26％，자회수솔위89．46％。
Leaching of zinc and silver from zinc-silver residue in sulfuric acid and hydrochloric acid-magnesium chloride system was studied .Zinc-silver residue was leached first using dilute sulfuric acid . The leaching solution was returned to leach zinc .The leaching residue was leached using HCl-magnesium chloride solution ,silver in leaching solution was replaced by iron plate .Influences of magnesium chloride concentration ,leaching temperature ,leaching time ,ratio between liquid volume and solid mass ,and others fractors on leaching rate of silver and zinc were investigated .The experimental results show that the recovery rate of silver and zinc are 85 .26% and 89 .46% , respectively under the optimum conditions .