Process for the non-degenerative distillation of fatty acids

Details Process for the non-degenerative distillation of fatty acids Process for the non-degenerative distillation of fatty acids

1984-04-11

1986-06-17

Bascomb, Wilbur

Distillation: processes, separatory

Plural distillations performed on same material

One a filming distillation

203 76, 203 77, 203 87, 203 93, 203DIG14, 203DIG19, 203DIG25, 202155, 202186, 202158, 260419, B01D 122, B01D 338, C11C 108

Patent

active

045954615

ABSTRACT:
A process for the nondegenerative distillation of C.sub.6 -C.sub.24 -fatty acids, of the type obtained by splitting natural fats and oils or by synthetic processes, such as for example the oxidation of paraffins, the crude product is thermally dried under reduced pressure, the dried and heated crude product is subjected to fractional evaporation in falling-film evaporators, optionally in the presence of superheated steam, and the various vapor fractions are deposited in condensers. The thermal drying process is conducted at a temperature of 60.degree.-80.degree. C. and a pressure of 90-100 mbars. The de-watered crude product is fractionated in a film-forming evaporator and, after distillation, passes to a rectification column which condenses the low boiling constituents as the main runnings.

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patent: 4076700 (1978-02-01), Harada et al.
patent: 4089880 (1978-05-01), Sullivan
patent: 4141799 (1979-02-01), Thelen
patent: 4166773 (1979-09-01), Higley et al.

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