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1. (WO2018125609) PROCESS FOR PRODUCING DIISOPROPYL ETHER FROM HIGH PURITY PROPYLENE

Pub. No.:    WO/2018/125609    International Application No.:    PCT/US2017/066635
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Sat Dec 16 00:59:59 CET 2017
IPC: C07C 41/06
C07C 43/04
Applicants: UOP LLC
Inventors: KRUPA, Steven L.
Title: PROCESS FOR PRODUCING DIISOPROPYL ETHER FROM HIGH PURITY PROPYLENE
Abstract:
A process for the production of diisopropyl ether from high purity propylene without the need of a propane-propylene fractionation column has been developed. The process involves (1) reacting a high purity propylene feedstock and water to produce isopropyl alcohol in a reactor and reacting the isopropyl alcohol with propylene to produce diisopropyl ether in the presence of an acidic ion exchange resin catalyst and a C4 diluent to generate a reactor effluent stream containing at least water, isopropyl alcohol, diisopropyl ether, propylene, and acid, (2) passing the reactor effluent to an acid removal zone to produce an acid depleted stream, (3) dividing the acid depleted stream into two portions, (4) recycling a portion to the reactor (5) purging a portion to prevent propane build-up and (6) recovering product diisopropyl alcohol.