PROCESS FOR PURIFICATION OF CRUDE POLYETHER POLYOLS

    公开(公告)号:CA1197264A

    公开(公告)日:1985-11-26

    申请号:CA433423

    申请日:1983-07-28

    Applicant: BASF AG

    Abstract: PROCESS FOR PURIFICATION OF CRUDE POLYETHER POLYOLS A process for purifying crude polyether polyols which are prepared by anionic polymerization of alkylene oxides in the presence of basic catalysts. The polyols are mixed with water and ortho-phosphoric acid in certain quantity ratios, an adsorption agent is incorporated in the reaction mixture, the mixture is filtered and the water is removed from the polyether polyol by distillation.

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