Process for germanium ore upgrading
US5178334A · kind A · utility
5Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1992 |
| Grant date | Jan 12, 1993 |
| Priority date | — |
| Expiry date | Mar 9, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C1/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process to increase the content of germanium which is found in an iron hydroxide phase of an ore of the supergene type for later recovery by solvent extraction. The process comprises the steps of first crushing the ore, converting the ore to pulp, and then subjecting the pulp to a magnetic separation to give a magnetic fraction enriched in germanium. Also, the process can be used to increase the content of gallium which is found in a jarosite phase of an ore of the supergene type for later recovery by solvent extraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.