Patent · US Active

Process for working-up a reaction mixture comprising polyether polyol

US9132387B2 · kind B2 · utility

0Cited by

6References

16Claims

0Family size

Assignee

BASF SE

Inventors

Vinit Chilekar · Tervuren, BE
Hartwig Voss · Bischofswerda, DE
Jelan Kuhn · Heidelberg, DE
Ann De Colvenaer · Wommelgem, BE
Andreas Brodhagen · Schifferstadt, DE

Key dates

Filing date	Dec 12, 2012
Grant date	Sep 15, 2015
Priority date	—
Expiry date	Oct 30, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C41/38
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a process for working-up a reaction mixture (5) comprising polyetherol and dissolved alkali metal comprising catalyst, wherein at least alkali metal ions of the dissolved alkali metal comprising catalyst are partially or completely removed from the mixture by a membrane separation process, the process comprising following steps:

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.