Demulsification process
US4216114A · kind A · utility
9Cited by
7References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Aug 5, 1980 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Demulsification of a water-in-oil, especially a water-in-crude oil, emulsion is effected by contacting it with a polyester obtained by condensation of a C.sub.9-18 alk(en)yl succinic anhydride, a water-soluble polyalkylene glycol of mol. wt. less than 500, and a polyhydric alcohol having three or more OH groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.