Boiler water treatment
US4952324A · kind A · utility
14Cited by
13References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1989 |
| Grant date | Aug 28, 1990 |
| Priority date | — |
| Expiry date | Feb 21, 2009 |
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 ametacrylic 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.