Process for the production of esters from vegetable oils or animal oils alcohols
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United States of America Patent
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Jun 1, 1999
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N/A
app pub date -
Aug 8, 1997
filing date -
Aug 8, 1996
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Abstract
For the production of linear monocarboxylic acid esters with 6 to 26 carbon atoms vegetable oils or animal oils, which may or may not be neutral, are reacted with monoalcohols having a low molecular weight, for example 1 to 5 carbon atoms, in the presence of a catalyst that is selected from among zinc oxide, mixtures of zinc oxide and aluminum oxide, and the zinc aluminates that correspond to the formula: ZnAl.sub.2 O.sub.4, x ZnO, y Al.sub.2 O.sub.3 (with x and y each being in the range of 0-2) and having more particularly a spinel type structure, thereby enabling the direct production in one or more stages, of an ester that can be used as a fuel or combustible and a pure glycerine.
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