Boiler water treatment
US4828713A · kind A · utility
25Cited by
12References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1988 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Mar 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/125
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treatment of boiler waters is disclosed. The method comprises a synergetic combination of a methacrylic acid-containing polymer with a strongly interacting nonionic surfactant, together with a chelant and/or a phosphate-generating species. The method is particularly effective when the surfactant is an alkoxylated alkylphenol or an alkoxylated alkylphenol ether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.