Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1990-10-05
1992-03-17
Mars, Howard T.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568621, C07C 4138
Patent
active
050970771
ABSTRACT:
A process is described for the purification of crude polyalkylene ether glycols contaminated by heteropolyacids or salts thereof, by treatment with solvents, which comprises mixing the crude polyalkylene ether glycols with a liquid hydrocarbon and water, allowing the phases to separate, and isolating the purified polyalkylene ether glycols from the upper phase.
REFERENCES:
patent: 4762951 (1988-08-01), Mueller
patent: 4933503 (1990-06-01), Mueller
Fischer Rolf
Jeschek Gerhard
Mueller Herbert
Weyer Hans-Juergen
BASF - Aktiengesellschaft
Kestler Kimberly J.
Mars Howard T.
Shurtleff John H.
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