Process for the removal of toxic cyanide and heavy metal species from alkaline solutions
US5522997A · kind A · utility
5Cited by
13References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1993 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Mar 16, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Toxic cyanide and anionic metal species are removed from aqueous alkaline solutions by contacting the aqueous alkaline solutions with a compound which is capable of being protonated at a pH of 9 or above.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.