Alcohol-solvent extraction system
US7699519B2 · kind B2 · utility
0Cited by
9References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2006 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D11/0492
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a method and apparatus to carry out the method for extracting petroleum distillate products from alcohol. The inventive method capitalizes on the discovered property that petroleum distillates, such as xylene and limonene, can be dissociated from their tight molecular interaction with alcohol by their higher affinity for water. The method also capitalizes on the discovered property that limonene, in the presence of water, forms terpin hydrate, forming particles that can be removed by filtration. Other, non-limonene petroleum distillates, once dissociated from alcohol, can be removed by distillation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.