Invention Application
- Patent Title: PROCESS FOR PREPARING ALDEHYDES AND SEPARATION OF THE CATALYST SYSTEM BY MEMBRANE SEPARATION
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Application No.: US17371477Application Date: 2021-07-09
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Publication No.: US20220033337A1Publication Date: 2022-02-03
- Inventor: Alexander Brächer , Johannes Knossalla , Dirk Fridag , Robert Franke , Frederik Gluth , Marc Schäpertöns , Christoph Kubis , Anna Chiara Sale , Peter Kucmierczyk , Ana Markovic
- Applicant: Evonik Operations GmbH
- Applicant Address: DE Essen
- Assignee: Evonik Operations GmbH
- Current Assignee: Evonik Operations GmbH
- Current Assignee Address: DE Essen
- Priority: EP20188523.3 20200730
- Main IPC: C07C45/78
- IPC: C07C45/78 ; C07C45/50 ; B01J31/18 ; B01D71/70 ; B01D71/52
Abstract:
The present invention provides a process for preparing aldehydes from C2 to C20 olefins using a subsequent membrane separation to separate the homogeneously dissolved catalyst system, wherein prior to the membrane separation a gas exchange that increases the partial pressure fraction of carbon monoxide or hydrogen is carried out in order to boost catalyst retention by the membrane.
Information query
