05154801 is referenced by 4 patents and cites 13 patents.

In the diisopropyl ether production process, the distallation step for the separation of aqueous IPA recovered from the DIPE extraction operations is modified to avoid carrying out the distillation under conditions that yield IPA-water azeotrope providing lower overall process cost. The determination has been made that the overhead and bottom streams form an aqueous IPA fractionation process operated under off-azeotrope conditions in DIPE production can be recycled, respectively, to the DIPE reactor and extractor operations. Recycling the water and IPA overhead mixture eliminates the requirement for adding fresh water to the DIPE reactor. Returning the water and IPA bottom stream to the extractor reduces the requirement for distilled water addition to the extraction step. As a consequence, a less complex and costly aqueous IPA separation process is implemented.

Title
Advances in product separation in DIPE process
Application Number
7/527973
Publication Number
5154801
Application Date
May 24, 1990
Publication Date
October 13, 1992
Inventor
James A Stoos
Blackwood
NJ, US
Frank P Ragonese
Cherry Hill
NJ, US
Hartley Owen
Belle Mead
NJ, US
Mohsen N Harandi
Lawrenceville
NJ, US
Agent
L G Wise
Charles J Speciale
Alexander J McKillop
Assignee
Mobil Oil Corporation
VA, US
IPC
B01D 41/06
View Original Source