04715932 is referenced by 8 patents and cites 10 patents.

This invention relates to a method for separating organic compounds, particularly lower aliphatic alcohols from fermentation fluids. This is accomplished by the use of a two-step extraction process whereby said lower aliphatic alcohols are selectively extracted from said fermentation fluids by a first solvent. The fermentation fluids from which the lower aliphatic alcohols have been extracted contain some of this first solvent. Therefore, a second solvent, which substantially differs from the first solvent in polarity is employed to extract the residual amounts of first solvent from said fermentation fluids. Then, the fermentation fluids, thus purified, can be returned to the fermentation process without the danger of toxic influences on the fermentation by the presence of said first solvent.

Title
Method to separate polar organic compounds, in particular aliphatic alcohols, from fermentation fluids
Application Number
6/361069
Publication Number
4715932
Application Date
March 23, 1982
Publication Date
December 29, 1987
Inventor
Uwe Tegtmeier
Triftstrasse 46, 1000 Berlin 65
DE
Klaus Misselhorn
Ascheberger Weg 41, 1000 Berlin 27
DE
Agent
Wenderoth Lind & Ponack
IPC
C07C 29/86
B01D 3/34
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