Purification of polyether-polyol

Details Purification of polyether-polyol Purification of polyether-polyol

1981-03-12

1981-12-22

Bascomb, Jr., Wilbur L.

Distillation: processes, separatory

With chemical reaction

Including step of adding catalyst or reacting material

203 14, 203 33, 203 34, 203 35, 203 36, 203 37, 203 41, 203 47, 568621, B01D 334, C07C 4311

Patent

active

043069436

ABSTRACT:
Crude liquid polyether-polyols containing an alkaline catalyst are purified by the steps of:

REFERENCES:
patent: 2996550 (1961-08-01), Simons
patent: 3271462 (1966-09-01), Earing
patent: 3326985 (1967-06-01), Mason
patent: 3915674 (1975-10-01), Smith
patent: 4137398 (1979-01-01), Muzzio
patent: 4254287 (1981-03-01), Ziegenhain et al.

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