Filtration process for purifying polyols

Details Filtration process for purifying polyols Filtration process for purifying polyols

1977-08-31

1979-01-30

Mars, Howard T.

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

Organic compounds

Carbohydrates or derivatives

568621, 568608, 568620, 260571, 260573, 260584B, 260570D, 536120, 544398, 544401, 544383, C07H 306, C07C 4112

Patent

active

041373960

ABSTRACT:
An improvement in the process for the removal of residual catalyst from polyether polyols is achieved by the use of a solvent wash and recovery system.

REFERENCES:
patent: 2496582 (1950-02-01), Engeart
patent: 2733272 (1956-01-01), Horseley et al.
patent: 3356738 (1967-12-01), Hauser et al.
patent: 3715402 (1973-02-01), Louvar et al.
patent: 3823145 (1974-07-01), Louvar et al.

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