Invention Grant
- Patent Title: Process and catalyst for preparing 1,4-butanediol
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Application No.: US16338015Application Date: 2017-09-27
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Publication No.: US11260375B2Publication Date: 2022-03-01
- Inventor: Monika Berweiler , Markus Göttlinger , Meike Roos , Matthias Schwarz , René Poss
- Applicant: EVONIK OPERATIONS GMBH
- Applicant Address: DE Essen
- Assignee: EVONIK OPERATIONS GMBH
- Current Assignee: EVONIK OPERATIONS GMBH
- Current Assignee Address: DE Essen
- Agency: Law Office of: Michael A. Sanzo, LLC
- Priority: EP16191735 20160930
- International Application: PCT/EP2017/074528 WO 20170927
- International Announcement: WO2018/060269 WO 20180405
- Main IPC: B01J23/755
- IPC: B01J23/755 ; B01J25/02 ; B01J35/02 ; B01J35/04 ; B01J35/10 ; C07C29/17 ; B01J37/00 ; B01J37/08 ; B01J37/02 ; B01J23/26 ; B01J23/28 ; B01J23/745 ; C07C31/20
Abstract:
The present invention relates to a process for preparing 1,4-butanediol (BDO) by hydrogenating 2-butyne-1,4-diol (BYD) or 4-hydroxybutanal (4-HBA) in the presence of a catalyst of the Raney type having a porous foam structure, wherein the macroscopic pores have sizes in the range of 100 to 5000 μm, and a bulk density of up to 0.8 kg/L.
Public/Granted literature
- US20190232256A1 PROCESS AND CATALYST FOR PREPARING 1,4-BUTANEDIOL Public/Granted day:2019-08-01
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