Method for removing deposits from cooling water systems
US5401311A · kind A · utility
6Cited by
12References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1994 |
| Grant date | Mar 28, 1995 |
| Priority date | — |
| Expiry date | Jan 14, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D7/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods and compositions for removing deposits from surfaces in contact with the water of a cooling water system are disclosed. The combination of a chelant, a phosphonate or phosphate compound, and a base is effective in removing clay deposits from such surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.