Vol. 53 No. 01 (2003): Volume 53 Number 01, May 2003
Articles

Comparing the Precipitation Techniques on Rhodium Recovery from Waste Solutions

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  • Aybars Güven,
  • Servet Timur
Aybars Güven
Department of Metallurgical and Materials Engineering, Istanbul Technical University
Servet Timur
Department of Metallurgical and Materials Engineering, Istanbul Technical University

Published 05/01/2003

Keywords

  • Rhodium,
  • precipitation,
  • rhodium recovery,
  • hydroxide,
  • hydrometallurgy,
  • precious metals metallurgy.
    • ...More
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How to Cite

Güven, Aybars, and Servet Timur. 2003. “Comparing the Precipitation Techniques on Rhodium Recovery from Waste Solutions”. ITU ARI Bulletin of Istanbul Technical University 53 (01):77-81. https://ari.itu.edu.tr/index.php/ituari/article/view/24.

Copyright (c) 2003 ITU Press

Creative Commons License

This work is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.

Abstract

Experimental study performed in this research aimed at precipitating Various rhodium compounds from the spent solutions of rhodium plating. Optimum conditions for the rhodium hydroxide precipitation, corresponding to a final Rh3+ concentration of 50 ppm, were found to be pH=7.5, 50°C temperature, and 6 hours of reaction period when NaOH is used as a neutralizer. Characterization studies were also carried out to inspect the suitability of precipitated rhodium compounds for the manufacturing of pure metallic rhodium and rhodium salts. Optimum conditions for rhodium precipitation are 180 g/l sodium forrnate concentration, 100 ‘0 temperature and over 6 hours time. Sodium formate precipitation of rhodium has been carried out with an efficiency of higher than 75%.
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