Invention Grant
- Patent Title: Process for the preparation of propylene oxide
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Application No.: US14906852Application Date: 2014-07-16
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Publication No.: US09688648B2Publication Date: 2017-06-27
- Inventor: Joaquim Henrique Teles , Bianca Seelig , Dominic Riedel , Philip Kampe , Daniel Urbanczyk , Markus Weber , Ulrich Mueller , Andrei-Nicolae Parvulescu , Alexander Schroeder , Meinolf Weidenbach , Werner Witzl
- Applicant: BASF SE , DOW GLOBAL TECHNOLOGIES LLC
- Applicant Address: DE Ludwigshafen US MI Midland
- Assignee: BASF SE,Dow Global Technologies LLC
- Current Assignee: BASF SE,Dow Global Technologies LLC
- Current Assignee Address: DE Ludwigshafen US MI Midland
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP13177903 20130724
- International Application: PCT/EP2014/065249 WO 20140716
- International Announcement: WO2015/010992 WO 20150129
- Main IPC: C07D301/03
- IPC: C07D301/03 ; C07D301/36 ; B01J37/10 ; B01J29/70 ; B01J29/89 ; B01J35/00 ; B01J37/00 ; B01J37/02 ; C07D301/12 ; C07D303/04 ; B01J23/06 ; B01J35/02 ; B01J27/18

Abstract:
A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.
Public/Granted literature
- US20160185741A1 PROCESS FOR THE PREPARATION OF PROPYLENE OXIDE Public/Granted day:2016-06-30
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