Use of cationic alkyl-phosphonium salts as corrosion inhibitors in open recirculating systems
US5314660A · kind A · utility
3Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 1993 |
| Grant date | May 24, 1994 |
| Priority date | — |
| Expiry date | Jan 28, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/167
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for inhibiting corrosion of metals which are in contact with an aqueous system comprising adding to the system, either alone or in combination with organic or metal containing water treatments, a water-soluble cationic alkyl-phosphonium salt in an amount effective to inhibit corrosion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.