Process for recovering and causing highly viscous petroleum products to flow
US5445179A · kind A · utility
9Cited by
6References
11Claims
0Family size
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Key dates
| Filing date | Mar 3, 1994 |
| Grant date | Aug 29, 1995 |
| Priority date | — |
| Expiry date | Mar 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process for recovering and causing highly viscous petroleum products to flow by means of an aqueous dispersion of the petroleum product, in which the dispersant is selected from alkali metal or ammonium salts of organic sulfonates having the following properties: (A) sulfur content of at least 10%; (B) water solubility at 20.degree. C. of at least 15% by weight; (C) decrease in water surface tension, at a concentration of 1% by weight, not higher than 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.