Method for removing chromium ions from aqueous solutions of organic acids
US4269705A · kind A · utility
4Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Apr 18, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of removing chromium ion from an aqueous solution of an organic acid of an acid concentration of up to 95% which comprises treating the solution with a cation exchange resin at a temperature higher than 55.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.