Multicomponent demulsifier, method of using the same and hydrocarbon containing the same
US4209422A · kind A · utility
33Cited by
7References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1978 |
| Grant date | Jun 24, 1980 |
| Priority date | — |
| Expiry date | Jan 6, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D17/047
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A multicomponent demulsifier comprising an alkoxylated substituted-phenol-formaldehyde resin and at least two different alkoxylated polyamines or a quaternary ammonium salt and an alkoxylated polyamine. The demulsifier is useful in breaking hydrocarbon-in-water or water-in-hydrocarbon emulsions including those comprising a substituted hydrocarbon. Moreover, when the alkoxylated polyamines are used, rather than the quaternary ammonium salt, the multicomponent demulsifier retains reasonable effectiveness even after a first water phase has been separated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.