Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1997-12-24
1999-10-05
Sergent, Rabon
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
210702, 210713, 210729, 502157, 502171, 502344, 568618, 568619, 568622, 568623, 568624, 568625, 568854, 568868, 568869, 568902, 568913, 568920, 568921, C07C 4144, C07C 4134
Patent
active
059627492
ABSTRACT:
This invention relates to a process for the purification of polyether polyols. This process enables the removal of residual alkaline metal catalyst from produced polyether polyol. It comprises a) adding glycerine to a polyether polyol that contains Group IA alkaline metal catalyst to form a precipitate, and b) separating the precipitate formed in a) to provide a purified polyether polyol. The present invention also relates to the purified polyether polyol produced by this process, the precipitate produced by this process, and the use of the precipitate as an alkaline metal catalyst in a process for the production of polyether polyols.
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Dunham Donald C.
Headley Keith J.
Parsons Harold R.
Schilling Steven L.
Bayer Corporation
Brown N. Denise
Gil Joseph C.
Sergent Rabon
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