TY - JOUR
T1 - Separation of Sn, Sb, Bi, and Cu from tin anode slime by solvent extraction and chemical precipitation
AU - Chen, Wei Sheng
AU - Mesaki, Shota
AU - Lee, Cheng Han
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/3
Y1 - 2021/3
N2 - 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%.
AB - 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%.
UR - http://www.scopus.com/inward/record.url?scp=85102692721&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85102692721&partnerID=8YFLogxK
U2 - 10.3390/met11030515
DO - 10.3390/met11030515
M3 - Article
AN - SCOPUS:85102692721
SN - 2075-4701
VL - 11
SP - 1
EP - 11
JO - Metals
JF - Metals
IS - 3
M1 - 515
ER -