Invention Grant
- Patent Title: Method for producing metal alcoholates
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Application No.: US17785674Application Date: 2020-12-16
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Publication No.: US11945767B2Publication Date: 2024-04-02
- Inventor: Wolf-Steffen Weissker , Nuria Huguet Subiela
- Applicant: BASF SE
- Applicant Address: DE Ludwigshafen am Rhein
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen am Rhein
- Agency: Faegre Drinker Biddle & Reath LLP
- Priority: EP 217475 2019.12.18
- International Application: PCT/EP2020/086362 2020.12.16
- International Announcement: WO2021/122702A 2021.06.24
- Date entered country: 2022-06-15
- Main IPC: C07C29/70
- IPC: C07C29/70

Abstract:
Process for preparing metal alkoxides by means of transalcoholization, wherein a lower metal alkoxide is fed via a side feed into a reactive distillation column comprising a rectifying section situated above the feed and a stripping section situated below the feed; a higher alcohol is fed into the stripping section, the bottom and/or a bottoms circuit of the column; a solution of a higher metal alkoxide in the higher alcohol is taken off at the bottom of the column and/or from the bottoms circuit; and a vapor comprising lower alcohol is taken off at the top of the column, the vapor is at least partially condensed and a substream of the condensate is recycled to the top of the column as reflux. The process enables the preparation of metal alkoxides with a reduced energy requirement.
Public/Granted literature
- US20230054206A1 METHOD FOR PRODUCING METAL ALCOHOLATES Public/Granted day:2023-02-23
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