Separation of Sn, Sb, Bi, and Cu from tin anode slime by solvent extraction and chemical precipitation

Wei Sheng Chen, Shota Mesaki, Cheng Han Lee

研究成果: Article同行評審

摘要

Tin anode slime is a by-product of the tin electrolytic refining process. This study investigated a route to separate Sn, Sb, Bi, and Cu from tin anode slime after leaching with hydrochloric acid. In the solvent extraction process with tributyl phosphate, Sb and Sn were extracted into the organic phase. Bi and Cu were unextracted and remained in the liquid phase. In the stripping experiment, Sb and Sn were stripped and separated with HCl and HNO3 . Bi and Cu in the aqueous phase were also separated with chemical precipitation procedure by controlling pH value. The purities of Sn, Sb, Cu solution and the Bi-containing solid were 96.25%, 83.65%, 97.51%, and 92.1%. The recovery rates of Sn, Sb, Cu, and Bi were 76.2%, 67.1%, and 96.2% and 92.4%.

原文English
文章編號515
頁(從 - 到)1-11
頁數11
期刊Metals
11
發行號3
DOIs
出版狀態Published - 2021 三月

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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