福建冶金2026，Vol.55Issue(4)：16-19,4.
锌冶炼中浸渣低酸浸出铟实验研究
Experimental Study on Low-acid Leaching of Indium from Neutral Leach Residue in Zinc Smelting
摘要
Abstract
Under the background of"dual carbon"goals,resource utilization of solid waste residues in non-ferrous metal smelting processes holds significant importance for achieving green and low-carbon development in the industry.The neutral leach residue from zinc hydrometallurgy contains multiple valuable metals,among which efficient recovery of indium is particularly critical.To address the issue of low indium leaching efficiency under conventional atmospheric pressure and low-acid conditions,this study systematically investigated the effects of acidity,reaction time,oxidative atmosphere,and reducing environment on indium leaching behavior using an atmospheric sulfuric acid leaching process with zinc smelting residue as the research object.Results indicate that under low-acid leaching conditions,indium leaching rate increases with elevated sulfuric acid concentration and prolonged reaction time.However,excessive oxidative atmosphere or extended reaction duration leads to a decrease in indium extraction efficiency.Under optimized conditions(85 g/L sulfuric acid concentration,liquid-to-solid ratio of 4∶1,leaching temperature of 85℃,reaction time of 5.5 hours,and 5 g/L zinc concentrate addition),the indium leaching rate reaches 60.87%.This study provides a feasible technological basis for recovering indium from zinc smelting residue under atmospheric pressure and low-acid conditions.关键词
锌冶炼/中浸渣/铟/低酸浸出/浸出率Key words
zinc smelting/neutral leach residue/indium/low-acid leaching/leaching rate引用本文复制引用
周晓龙,胡昌荣,何立秀,韦响..锌冶炼中浸渣低酸浸出铟实验研究[J].福建冶金,2026,55(4):16-19,4.基金项目
2026年度广西科技界客库重点课题(桂科协[2026]P-112) （桂科协[2026]P-112）
