Transport and deposit inhibition of copper in boilers
US5158684A · kind A · utility
8Cited by
13References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1991 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Mar 12, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F5/14
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
This invention relates to a method of transporting and inhibiting the deposition of copper and copper-iron materials on heat transfer devices in steam generating systems. This method utilizes a thermally stable chelant and a carboxylated polymeric dispersant as the treatment agents. Representative chemicals are 1,10-phenanthroline and 9:1 methacrylic acid/acrylic acid copolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.