Process for the preparation of polyglycerols

Details Process for the preparation of polyglycerols Process for the preparation of polyglycerols

1984-12-19

1985-11-05

Mars, Howard T.

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

Organic compounds

Oxygen containing

568679, 568680, C07C 4101

Patent

active

045515611

ABSTRACT:
The novel process for the preparation of polyglycerols is based on the condensation of glycerol at a temperature of 190.degree. to 250.degree. C. in the presence of catalysts, the water of condensation being removed. Catalysts which are used are particular compounds containing phosphorus and an alkali metal, such that 0.005 to 1% by weight, based on the weight of glycerol, of phosphorus is present and the molar ratio of alkali metal:phosphorus is 1 to 12:1.

REFERENCES:
patent: 2110695 (1938-03-01), Batchelder
patent: 2258892 (1941-10-01), Harris

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