Process for transesterification of vegetable oils or animal...

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...

Reexamination Certificate

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C554S170000

Reexamination Certificate

active

07151187

ABSTRACT:
A new process for the production of linear monocarboxylic acid esters with 6 to 26 carbon atoms, by reaction of vegetable oils or animal oils that may or may not be neutral, with monoalcohols of 1 to 18 carbon atoms, uses a catalyst that is selected from among:the combinations of zinc oxides and titanium oxides;the combinations of zinc oxide, titanium oxide and alumina;the combinations of bismuth and titanium oxides; andthe combinations of bismuth oxide, titanium oxide and alumina.The process makes it possible to produce directly, in one or more stages, an ester that can be used as a fuel and a pure glycerin.

REFERENCES:
patent: 5908946 (1999-06-01), Stern et al.
patent: 6147196 (2000-11-01), Stern et al.
patent: 0924185 (1999-06-01), None
Peterson G R et al: “Rapeseed oil Transesteirification by Heterogenous Catalysis” Journal of the American Oil Chemists' Society, American Oil Chemists' Society. Champaign, US, vol. 61, No. 10, Oct. 1984 pp. 1593-1597, XP002170978.

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