Glycerine purification process

Details Glycerine purification process Glycerine purification process

1986-06-23

1987-07-28

Evans, J. E.

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

Organic compounds

Oxygen containing

568859, 568860, C07C 2986, C07C 3122

Patent

active

046833471

ABSTRACT:
The level of impurities such as glycerol-based acetals and/or ketals in glycerine, particularly glycerol-dimethylketal, is reduced by extraction of the glycerine with supercritical or near critical carbon dioxide.

REFERENCES:
patent: 2081721 (1937-05-01), Van Dijck et al.
patent: 2154930 (1939-04-01), Evans
patent: 4345976 (1982-08-01), Peter et al.
patent: 4360407 (1982-11-01), Reierson

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