Inventors:
Dennis Michael ADKESSON - Decatur IL, US
Albert W. Alsop - Wilmington DE, US
Tyler T. Ames - Wilmington DE, US
Luis Alberto Chu - Landenberg PA, US
James M. Disney - Decatur IL, US
Bryan C. Dravis - Fishers IN, US
Patrick Fitzgibbon - Hockessin DE, US
James M. Gaddy - Decatur IL, US
F. Glenn Gallagher - Wilmington DE, US
William F. Lehnhardt - Lovington IL, US
Jefferson C. Lievense - Forsyth IL, US
Michael L. Luyben - Perkiomenville PA, US
Mayis Seapan - Landenberg PA, US
Robert E. Trotter - Wilmington DE, US
Gregory M. Wenndt - Lafayette IN, US
Eugene K. Yu - Hockessin DE, US
International Classification:
C07C 31/20
Abstract:
A process for purifying 1,3-propanediol from the fermentation broth of a cultured 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.