有色金属科学与工程2026，Vol.17Issue(2)：215-220,6.DOI:10.13264/j.cnki.ysjskx.2026.02.006
硫酸锌溶液中氧压除Fe2+新工艺技术
Novel oxygen-pressure technology for ferrous ion removal from zinc sulfate solutions
摘要
Abstract
Aiming at a zinc sulfate solution containing a Fe2+concentration of 20.3 g/L produced by a zinc hydrometallurgical plant,a new process was developed to oxidize Fe2+to Fe3+using pure oxygen in an autoclave.Secondary zinc oxide powder was utilized as a neutralizing agent to neutralize the acid generated during the iron precipitation stage.The reaction pH value was rigorously controlled within the range of 3.0 to 4.0.Under the conditions of oxygen partial pressure of 0.35 MPa,reaction temperature of 80℃,agitation speed of 450 r/min,and neutralizing agent dosage of 55 g/L,the oxidation and removal of Fe2+from the zinc sulfate solution were achieved within 50 min.The total iron(TFe)concentration in the solution after iron precipitation was less than 2 g/L,and the iron removal efficiency reached 92%.关键词
硫酸锌溶液/加压氧化/湿法除铁Key words
zinc sulfate solution/pressure oxidation/hydrometallurgical iron removal分类
矿业与冶金引用本文复制引用
陈春林,陆占清,戴兴征,刘巧芳,周先黎..硫酸锌溶液中氧压除Fe2+新工艺技术[J].有色金属科学与工程,2026,17(2):215-220,6.基金项目
云南省重大科技专项资助项目(202302AG050008,202302AB080012) （202302AG050008,202302AB080012）
