Method of preparation of emulsions of viscous hydrocarbon in water which inhibits aging
US5354504A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1991 |
| Grant date | Oct 11, 1994 |
| Priority date | — |
| Expiry date | Aug 19, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/0391
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for the preparation of a hydrocarbon in water emulsion from viscous hydrocarbons wherein aging of the emulsion over time is substantially eliminated comprises forming a concentrated emulsion characterized by a water content of less than or equal to 15%/wt. and an average oil droplet size of less than or equal to 4 microns and thereafter forming a final emulsion by diluting the concentrated hydrocarbon in water emulsion with water so as to obtain a water content of less than or equal to 30%/wt. and stirring said diluted emulsion so as to obtain a final hydrocarbon in water emulsion having an average oil droplet size of greater than or equal to 15 microns.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.