Properties of Hard Chromium Plating in Trihydric Chromate Bath

Zhang Xin; Zhao Baodong; Sun Gensheng; Lin Jing; Jiang Jing

doi:10.13374/j.issn1001-053x.1996.01.018

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Zhang Xin, Zhao Baodong, Sun Gensheng, Lin Jing, Jiang Jing. Properties of Hard Chromium Plating in Trihydric Chromate Bath[J]. Chinese Journal of Engineering, 1996, 18(1): 78-83. doi: 10.13374/j.issn1001-053x.1996.01.018

Citation:

Zhang Xin, Zhao Baodong, Sun Gensheng, Lin Jing, Jiang Jing. Properties of Hard Chromium Plating in Trihydric Chromate Bath[J]. Chinese Journal of Engineering, 1996, 18(1): 78-83. doi: 10.13374/j.issn1001-053x.1996.01.018

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Properties of Hard Chromium Plating in Trihydric Chromate Bath

doi: 10.13374/j.issn1001-053x.1996.01.018

1. Department of Physical Chemistry, USTB, Beijing 100083, PRC;
2. Department Chemistry, Branch Campus of Beijing University. Beijing, 100083 PRC

Received Date: 1995-08-10
Available Online: 2021-10-29

Abstract

Abstract

The technological process of separating Fe(Ⅲ) from rare-earth sulphate leaching selection originated in Baotou rare-earth mine with solvent extraction method has been obtained. The rate of recovery of rare-earth is more then 99%. The content of Fe(Ⅲ) is less than 0.11g/l in the solution after being separated. The 10% loss of rareearth which is resulted from coprecipitation of rare-earth with Fe(Ⅲ) in the process of separatiag femc ion with sediment method is avoided. The composition of extracted complex determined as well.
- extraction,
- sulphate leaching selection,
- rare-earth and Fe(Ⅲ),