05059288 is referenced by 7 patents and cites 11 patents.

High purity isopropyl acetate and ethanol are recovered from a process stream containing isopropyl acetate, ethanol and water by a multiple step process including extracting substantially all of the ethanol from the stream using water as a solvent, stripping the extract stream to remove substantially all of the remaining isopropyl acetate as an overhead recycle stream, which is combined with the fresh feed stream prior to the extraction step, fractionating the ethanol-rich stripping column bottoms stream to produce a ethanol-water azeotropic overhead stream and using a portion of the fractionating column bottoms stream as the solvent for the extraction step.

Title
Recovery of isopropyl acetate and ethanol from an isopropyl acetate, ethanol and water-containing stream
Application Number
7/439830
Publication Number
5059288
Application Date
November 21, 1989
Publication Date
October 22, 1991
Inventor
William J Curry
Thornton
PA, US
Agent
Coleman R Reap
Assignee
Harborchem
NJ, US
IPC
C07C 67/58
C07C 29/86
B01D 3/16
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