Title:
プロペンおよび過酸化水素から１，２−プロパンジオールを製造するための方法
Document Type and Number:
Japanese Patent JP6824269
Kind Code:
B2
Abstract:
The invention relates to a method for producing propylene glycol from propene and hydrogen peroxide, comprising the following steps: a) reacting propene with hydrogen peroxide in the presence of a catalyst mixture comprising a phase transfer catalyst and a heteropolytungstate, wherein the reaction is carried out in a fluid mixture comprising an aqueous phase with a maximum pH of (6) and an organic phase; b) dividing the two-phase mixture from step a) into an aqueous phase and an organic phase containing propylene oxide; c) returning the propylene oxide contained in the separated organic phase into the reaction from step a); and d) separating propylene glycol from the aqueous phase separated in step b).
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Inventors:
Holger Wiederholt
Darfitt Boltz
Beant eager
Hans-Jurgen Kahle
Zebastian im
Geoac Friedrich Thielle
Darfitt Boltz
Beant eager
Hans-Jurgen Kahle
Zebastian im
Geoac Friedrich Thielle
Application Number:
JP2018526922A
Publication Date:
February 03, 2021
Filing Date:
November 01, 2016
Export Citation:
Assignee:
Evonik Operations Game Beher
International Classes:
C07C29/08; C07C31/20
Domestic Patent References:
| JP2018508506A | ||||
| JP2018513834A | ||||
| JP56018972A | ||||
| JP2002522402A | ||||
| JP2011025224A |
Foreign References:
| US20120203015 | ||||
| US20060025637 | ||||
| US4308409 |
Attorney, Agent or Firm:
Einzel Felix-Reinhard
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima
Morita Taku
Junichi Maekawa
Hiroyasu Ninomiya
Ueshima