Process for preparing naphthenic acid 1,2-imidazolines
US4758672A · kind A · utility
0Cited by
21References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 1987 |
| Grant date | Jul 19, 1988 |
| Priority date | — |
| Expiry date | May 18, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1,2-imidazolines are prepared by reacting gas oils containing naphthenic acid with polyamines. This reaction, in addition to forming imidazolines, reduces the acidity of the starting gas oils.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.