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1. (WO2018077515) METHOD FOR THE COMBINED PRODUCTION OF POLYOLS IN THE PRESENCE OF AN INORGANIC BASE

Pub. No.:    WO/2018/077515    International Application No.:    PCT/EP2017/072248
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Sep 06 01:59:59 CEST 2017
IPC: C07C 29/38
C07C 31/20
C07C 31/22
Applicants: OXEA GMBH
Inventors: FREY, Guido D.
BOTHE, Melanie
STRUTZ, Heinz
SLINKARD, William E.
Title: METHOD FOR THE COMBINED PRODUCTION OF POLYOLS IN THE PRESENCE OF AN INORGANIC BASE
Abstract:
The invention relates to a method for the simultaneous consecutive production of polyols by the base-catalyzed reaction of at least two different medium-chain aldehydes with formaldehyde. Because of the simultaneous consecutive mode of operation, high degrees of conversion and high selectivities can be achieved for both aldehydes, whereby additionally a considerable reduction in the remaining, unreacted formaldehyde amount is achieved. This leads to improved process economy, because the energy costs for reprocessing the formaldehyde flow are considerably reduced.