【摘要】 研究分析了铅浮渣反射炉烟尘的性质和特点,提出了二段硫酸浸出、P204萃取、硫酸洗涤、盐酸反萃、锌板置换、压团熔铸、电解铸型的提铟新工艺,并进行了全流程的试验研究,明确了各工序的工艺技术条件。采用先浓硫酸后稀硫酸直接浸出烟尘可保证高的铟浸出率,浓浸时加氧化剂可提高浸出速度,稀浸时加凝聚剂可促进溶液沉清。采用酸洗、草酸再生和定期碱洗等方法,解决了萃铟有机相老化问题。更多还原

【Abstract】 The paper,according to the analyzing of lead dross reverberator dust,put forward the new technics indium distilling by sulfuric acid leaching,P204 extraction,sulfuric acid washing,hydrochloric acid reverse extraction,zinc replacement,smelting,electrolysis,casting etc.and defined the whole process experiment study.Described the technics condition for every process.High sulfuric acid leaching follow by low sulfuric acid leaching can ensure a high indium leaching ration;and adding oxidant can improve the leaching speed in the high sulfuric acid leaching process,adding flocculant can clear solution in the sulfuric acid leaching process,by way of acid washing,oxalic acid regeneration,and alkali washing the problem about organic media aging can be solved.更多还原