Inventors:
Dennis M. Adkesson - Decatur IL, US
James S. Disney - Decatur IL, US
Bryan C. Dravis - Fishers IN, US
James M. Gaddy - Decatur IL, US
William F. Lehnhardt - Lovington IL, US
Jefferson C. Lievense - Forsyth IL, US
Gregory M. Wenndt - Lafayette IN, US
Tyler T. Ames - Wilmington DE, US
Patrick Fitzgibbon - Hockessin DE, US
F. Glenn Gallagher - Wilmington DE, US
Michael L. Luyben - Wilmington DE, US
Mayis Seapan - Landenberg PA, US
Robert E. Trotter - Wilmington DE, US
Albert W. Alsop - Wilmington DE, US
Eugene K. Yu - Forsyth IL, US
Luis Alberto Chu - Landenberg PA, US
Assignee:
E. I. du Pont de Nemours and Company - Wilmington DE
International Classification:
C07C 29/74
C07C 31/18
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.