7. Developments in the treatment of leach solutions
Given the complexity of the leach solution treatment operations described above, for the selective recovery of indium in the presence of numerous impurities (Zn, Fe, Pb, Cu, As, Sb, Sn, Tl, Ga, Ge...), current approaches increasingly favor the use of solvent extraction and ion-exchange resin separation techniques, which are better suited to dilute solutions (low metal concentration) and offer greater selectivity.
7.1 Selective indium extraction using organic solvents
The main solvents used in indium liquid-liquid extraction are organic compounds derived from phosphorus chemistry. They are effective in concentration ranges above 500 mg/L. Often indium and impurities are co-extracted, but selective re-extraction ensures process selectivity.
...
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
Developments in the treatment of leach solutions
Electro-refining
Bibliography
Articles – Books
Directory
Organizations – Federations – Associations (non-exhaustive list)
Canadian Mineral Yearbook
Indium Corporation of America
Platts Metals week
The Ultimate Scientific and Technical Reference
