Branched alkyl-aromatic sulfonic acid dispersants for solublizing asphaltenes in petroleum oils
US6048904A · kind A · utility
32Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S516/909
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention is an asphaltene dispersant containing an aromatic, a sulfonic acid head, and an alkyl tail containing 16 carbons or more and at least one branch of a methyl or longer alkyl. Preferably, the aromatic is a fused two ring aromatic and the tail is a two, branched alkyl tail of 30 carbons or longer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.