Systems for selective removal of contaminants from a composition and methods of regenerating the same
US8017796B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2009 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11C3/003
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to devices and methods for selectively removing contaminants from a crude product mixture. In an embodiment the invention includes a method for removing organic acids from a crude product mixture including contacting the crude product mixture with a metal oxide substrate, wherein free organic acids in the crude product mixture bind to the metal oxide substrate, thereby removing free organic acids and forming a refined product mixture; separating the refined product mixture from the metal oxide substrate; and removing the organic acids bound to the metal oxide substrate by contacting the metal oxide substrate with an alkyl ester composition at a temperature of greater than about 100 degrees Celsius. Other embodiments are also described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.