Français
7. Hydrometallurgical processes
Whether it's concentrates from the mining and metallurgy industries or composite residues, hydrometallurgy of PGMs is virtually the only way to separate them. Dissolution takes place in an acidic oxidizing medium. Solution treatment with molten salts can also be effective and selective in certain cases.
Leaching is presented in the articles Solid-liquid extraction
7.1 Dissolution with aqua regia
This method is well suited to lead smelting residues containing 20-70% precious metals.
The reactions governing the solution of platinum are as follows:...
The Ultimate Scientific and Technical Reference
This article is included in
Metal manufacturing processes and recycling
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Hydrometallurgical processes
Platinoid separation processes
Bibliography
References
Main producers
Mining and metallurgy
Amplats (Anglo American Platinum Corporation Ltd) (Afrique du Sud) http://www.angloplatinum.com
Implats (Impala Platinum Holdings Ltd) (Afrique du Sud) http://www.implats.co.za
Lonmin Platinum (Afrique...
The Ultimate Scientific and Technical Reference
