Chemical demulsifier for desalting heavy crude
US6168702A · kind A · utility
14Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1999 |
| Grant date | Jan 2, 2001 |
| Priority date | — |
| Expiry date | Feb 26, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G33/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The chemical demulsifier formulation has the formula: ##STR1## wherein R.sub.1 is H or an alkoxide of from 5 to about 20 carbon atoms; x is an integer of from about 8 to about 22 when R.sub.1 is hydrogen and from about 2 to about 5 when R.sub.1 is alkoxide; R.sub.2 is independently selected from H, (CH.sub.2 CH.sub.2 O).sub.m H; R.sub.3 is independently selected from H, (CH.sub.2 CH.sub.2 O).sub.n H, and (CH.sub.2 CH(CH.sub.3)O).sub.n H; m and n are integers from 1 to 50; and y and z are integers ranging from 2 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.