Process for recovering and moving highly viscous petroleum products
US5571452A · kind A · utility
1Cited by
12References
17Claims
0Family size
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Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Nov 5, 1996 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for recovering and moving highly viscous petroleum products, by the use of aqueous dispersions in the presence of sulphonate dispersers prepared: PA1 a) by increasing the molecular weight of steam cracking fuel oil by its oligomerization in the presence of a catalyst selected from BF.sub.3 and complexes thereof with strong acids; PA1 b) sulphonating the compound obtained from step (a) by reaction with a sulphonating agent, preferably SO.sub.3 ; PA1 c) neutralizing the sulphonate obtained from step (b) by treatment with hydroxides selected from the hydroxides of alkaline or earth alkaline metals or ammonium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.