Metallurgical Transactions B

, Volume 13, Issue 4, pp 555–564

Solution chemistry of tungsten leaching systems

Authors

  • K. Osseo-Asare
    • Department of Materials Science and EngineeringThe Pennsylvania State University
Hydrometallurgy

DOI: 10.1007/BF02650012

Cite this article as:
Osseo-Asare, K. MTB (1982) 13: 555. doi:10.1007/BF02650012

Abstract

The dependence of tungsten leaching and solution purification processes on solution composition is treated in terms of aqueous phase diagrams (such as Eh-pH, log Metal−pH, log Anion−pH) generated with the DIAGRAM computer program. The systems considered are W-H2O, Me-W-H2O, Me-W-CO3-H2O, Mo-H2O, Me-Mo-H2O (Me=Ca, Mn, Fe); S-H2O, W-S-H2O, and Mo-S-H2O. These diagrams are examined in the context of selective dissolution of tungsten from scheelite and wolframite.

Copyright information

© American society for metals and the metallurgical society of Aime 1982