Fluid compositions and methods for using cross-linked phenolic resins
US9663726B2 · kind B2 · utility
4Cited by
16References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2014 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Jun 26, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2810/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cross-linked phenolic resin demulsifier may be added to a water-in-oil emulsion having at least one foulant therein. The demulsifier may separate at least a portion of the foulant(s) from the water-in-oil emulsion, and the separated foulant(s) may be removed from the water-in-oil emulsion. In a non-limiting embodiment, the amount of the demulsifier present in the water-in-oil emulsion may range from about 0.1 ppm to about 50,000 ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.