Sulphydryl acid and imidazoline salts as inhibitors of carbon corrosion of iron and ferrous metals
US6395225B1 · kind B1 · utility
6Cited by
7References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 24, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Nov 24, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F11/161
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The invention concerns inhibitor compositions based on fatty sulphydryl acid and poly(ethyleneamino)imidazoline salts for considerably reducing the corrosive effect of carbon brine on iron and ferrous metals. These compositions are as efficient when the corrosive medium is driven with a high flowrate and in biphasic brine/oil medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.