Iron dispersant for boiler water
US4877535A · kind A · utility
3Cited by
2References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 26, 1988 |
| Grant date | Oct 31, 1989 |
| Priority date | — |
| Expiry date | Aug 26, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A composition and method for effectively dispersing iron in water to prevent iron oxide deposits is disclosed. The composition includes a first component which is an acrylic copolymer having repeating units mixed with a second component which is either a homopolymer or copolymer of an acrylate or a methacrylate. The first component includes an acrylic or methacrylic hydrazide and its repeating units include an acrylic or methacrylic amide or alkyl ester. Iron containing water may be treated by adding 0.01-10 mg composition to each liter of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.