Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1980-05-13
1981-12-01
Niebling, John F.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
2604285, C11C 302, C09F 508
Patent
active
043035906
ABSTRACT:
The invention provides a novel method for the preparation of a lower alkyl, e.g. methyl, ester of fatty acid by the alcoholysis reaction of fatty acid glyceride, i.e. naturally occurring oils or fats, with a lower alcohol, according to which high-quality products containing very small amounts of colored or coloring impurities are readily obtained without the necessity of troublesome procedure or expensive apparatus as in the conventional methods. The inventive method is in principle a two-step alcoholysis reaction and the product obtained in the first step is separated from the by-product glycerine and then subjected to the second alcoholysis reaction followed by admixing of an appropriate amount of water and phase separation so that the undesirable impurities transfer into the aqueous layer and readily separated from the ester product.
REFERENCES:
patent: Re22751 (1946-04-01), Trent
patent: 1659790 (1928-02-01), Starrels
patent: 2383599 (1945-08-01), Glossop
patent: 4164506 (1979-08-01), Kawahara
Ando Susumu
Okabe Akio
Tanaka Yoshiro
Lion Corporation
Niebling John F.
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