Process for the removal of catalysts from polyether polyols empl

Details Process for the removal of catalysts from polyether polyols empl Process for the removal of catalysts from polyether polyols empl

1975-11-17

1977-06-14

Brown, Johnnie R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

260268R, 260568, 260573, 260584C, 260611B, 260613B, 260615B, 536 1, 536120, C07H 1508, C07C 4100, C07C 4300

Patent

active

040298795

ABSTRACT:
An improvement in the process of catalyst removal in the preparation of polyether polyols is achieved by adding a critical amount of water from about 1 to about 5 percent by weight based on the weight of polyol to an adsorbent synthetic magnesium silicate-polyol mixture followed by filtration to remove the adsorbent.

REFERENCES:
patent: 3528920 (1970-09-01), Niizeki et al.
patent: 3715402 (1973-02-01), Louvar et al.
patent: 3823145 (1974-07-01), Louvar et al.

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