Process for purifying crude glycerol

Details Process for purifying crude glycerol Process for purifying crude glycerol

1989-08-09

1991-02-05

Evans, J. E.

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

Organic compounds

Oxygen containing

C07C 2976, C07C 3122

Patent

active

049906950

ABSTRACT:
The invention provides a process for purifying crude glycerol such as splitters crude, soaplye crude and methanolysis crude which comprises a microfiltration step over a filter material on a ceramic support preferably comprising alumina. Preferably the filter material comprises zirconia and/or alumina. Preferably the process further comprises the step of distillation and/or treatment with ion exchange resins. Also the process may involve a combination of microfiltration and ultrafiltration.

REFERENCES:
Soviet Inventions Illustrated, week 8643, No. 86-283915/43, Derwent Publications Ltd., Abstract.
Japan, vol. 7, No. 263 (C-196), Nov. 24, 1983; 58-144-333, Abstract.
Japan, vol. 8, No. 30 (C-209), Feb. 8, 1984; 58-192-840, Abstract.
Vogel, "Practical Organic Chemistry", 3rd ed. (1957), pp. 50, 51 and 130-134.
Aldrich, "Catalog Handbook of Fine Chemicals", (1986-1987), pp. 1659-1661.

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