Fuel and related compositions – Liquid fuels – Plant or animal extract mixtures or extracts of...
Reexamination Certificate
2002-12-23
2009-12-29
Toomer, Cephia D (Department: 1797)
Fuel and related compositions
Liquid fuels
Plant or animal extract mixtures or extracts of...
C044S307000, C044S388000, C044S444000, C044S447000
Reexamination Certificate
active
07637969
ABSTRACT:
Procedure to generate biodiesel fuels with improved properties at low temperature by the transesterification of triglycerides with alcohols such as methanol or ethanol, optionally in the presence of methyl or ethyl acetates of fatty acids and an inert solvent, to produce methyl or ethyl esters of fatty acids, glycerine and, where appropriate, glycerine triacetate, followed by the separation of crude glycerine that is reacted with aldehydes, ketones and/or acetic acid or methyl or ethyl acetates to produce acetals, glycerine cetals and/or glycerine acetates. The acetals, glycerine cetals and/or glycerine acetates are mixed with methyl or ethyl esters of fatty acids in concentrations of approximately 0.5-20% by weight to obtain a biodiesel with improved properties at low temperatures.
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Industrial Management S.A.
Ladas and Parry LLP
Toomer Cephia D
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