Process for recovering molybdenum and tungsten from mining wastewater
US4219416A · kind A · utility
7Cited by
14References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Jun 29, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for removal of heavy metals in their anionic state, particularly tungsten and molybdenum, from industrial mining wastewater by chemical precipitation of the heavy metal values, followed by gas flotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.