Abstract The recovery of rhenium from acidic wash solution originating from a copper smelting process using sodium thiosulfate were investigated. Effects of reaction time, reaction temperature, flocculant addition and redissolubility of precipitate on the precipitation of rhenium have been studied. The temperature, Oxidation-Reduction Potential of the solution, reaction time in favor of the precipitation efficiency of rhenium. For the recovery of rhenium, copper is precipitated synchronously with a proportion of arsenate. Fine particles in the solution were slow to agglomerate and particle flocculation aids the precipitation rate of metal sulfide. The precipitation time under particle flocculation was shortened about 15 min, and the recovery percentage of rhenium was 98.89%.

中文翻译：

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还原硫化物沉淀法回收铜冶炼高亚砷酸洗酸溶液中铼的研究

摘要 研究了使用硫代硫酸钠从铜冶炼过程中产生的酸性洗涤液中回收铼。研究了反应时间、反应温度、絮凝剂添加量和沉淀物再溶解度对铼沉淀的影响。温度、溶液的氧化还原电位、反应时间有利于铼的沉淀效率。为回收铼，铜与一定比例的砷酸盐同步沉淀。溶液中的细颗粒团聚缓慢，颗粒絮凝有助于金属硫化物的沉淀速率。颗粒絮凝沉淀时间缩短约15 min，铼回收率为98.89%。