Methods of reducing precipitation from acid solutions
US5264141A · kind A · utility
11Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Jun 8, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S507/934
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods and compositions for reducing the precipitation of metal sulfides from acid solutions are provided. The methods basically comprise reducing the precipitation of metal sulfide compounds from an aqueous acid solution when the solution dissolves sulfide and metal ions by combining at least one oxime with the acid solution in an amount whereby the oxime preferentially reacts with sulfide ions in the solution and thereby prevents the sulfide ions from reacting with metal ions therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.