Two-stage process for separating mixed fatty-acid esters

Details Two-stage process for separating mixed fatty-acid esters Two-stage process for separating mixed fatty-acid esters

1976-09-24

1978-01-03

Douglas, Winston A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260428, 260419, 260420, C09F 510

Patent

active

040666778

ABSTRACT:
A process for separating an ester of a polyethanoid fatty acid and an ester of a monoethanoid fatty acid from a mixture comprising an ester of a polyethanoid fatty acid, an ester of a monoethanoid fatty acid and an ester of a saturated fatty acid which process comprises contacting the mixture at first adsorption conditions with a first adsorbent comprising a X or a Y zeolite containing a selected cation at the exchangeable cationic sites thereby selectively adsorbing the ester of a polyethanoid fatty acid and thereafter recovering the ester of a polyethanoid fatty acid; removing from the first adsorbent a second mixture comprising an ester of a monoethanoid fatty acid and an ester of a saturated fatty acid; contacting the second mixture at second adsorption conditions with a second adsorbent comprising a X or a Y zeolite containing selected cations at the exchangeable cationic sites thereby selectively adsorbing the ester of a monoethanoid fatty acid and thereafter recovering the ester of a monoethanoid fatty acid. Preferably the polyethanoid fatty acid ester and a monoethanoid fatty acid will be recovered from the first and second adsorbents respectively by desorption with a first and a second desorbent material.

REFERENCES:
patent: 3221073 (1965-11-01), Davis et al.
patent: 3720604 (1973-03-01), Rosback
patent: 3755540 (1973-08-01), Rosback
patent: 3864370 (1975-02-01), Yamashita

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