Process for reducing the organic solvent losses in the treatment of a suspension resulting from the acid attack on an ore
US4450143A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1981 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Jul 1, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for treating a hydrometallurgical suspension resulting from the acid attack on an ore containing at least one metal element to be put to use, and non-attackable mineral materials, a fraction of which is formed of clays, comprising extracting the useful metal element which has gone into solution in the attack operation, by means of an organic solvent belonging to the group of alkyl phosphates, which is characterized by introducing a condensed mineral phosphate into the ore attack medium, for the purpose of limiting the losses due to adsorption of the organic extraction solvent by the clays. The process applies more particularly to uraniferous, molybdeniferous, vanadiferous and cobaltiferous ores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.