Purification of biologically-produced 1,3-propanediol
US8183417B2 · kind B2 · utility
5Cited by
12References
13Claims
0Family size
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Key dates
| Filing date | Feb 25, 2011 |
| Grant date | May 22, 2012 |
| Priority date | — |
| Expiry date | Feb 25, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2311/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for purifying 1,3-propanediol from the fermentation broth of a cultured E. coli that has been bioengineered to synthesize 1,3-propanediol from sugar is provided. The basic process entails filtration, ion exchange and distillation of the fermentation broth product stream, preferably including chemical reduction of the product during the distillation procedure. Also provided are highly purified compositions of 1,3-propanediol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.