Methods for inhibiting the corrosion of iron-containing and copper-containing metals in boiler feedwater systems
US5194223A · kind A · utility
6Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1991 |
| Grant date | Mar 16, 1993 |
| Priority date | — |
| Expiry date | Nov 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/149
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Methods are provided for simultaneously inhibiting the corrosion of iron-containing and copper-containing metals in contact with boiler feedwaters. The methods comprise adding an effective amount of 1,10-phenanthroline to the boiler feedwater system for which corrosion inhibition is desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.