Process for the preparation of biodiesel

Details Process for the preparation of biodiesel Process for the preparation of biodiesel

2011-02-15

2011-02-15

Gonzalez, Porfirio Nazario (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Fatty compounds having an acid moiety which contains the...

C554S174000, C508S519000, C508S522000, C508S539000

Reexamination Certificate

active

07888520

ABSTRACT:
The present invention relates to a process of preparing fatty alkyl esters (biodiesel), glycerin and lithium soap comprising: a) transesterifying an oil, fat or grease with a solution of lithium base in a monohydric aliphatic alcohol to produce fatty alkyl esters and a lithium alkaline glycerin; b) separating the fatty alkyl esters and the lithium alkaline glycerin and utilizing the lithium alkaline glycerin to saponify fatty alkyl compounds to produce glycerin and lithium soap; and c) optionally, separating the glycerin and lithium soaps.

REFERENCES:
patent: 1957437 (1934-05-01), Auer
patent: 5424467 (1995-06-01), Bram et al.
patent: 5972057 (1999-10-01), Hayafuji et al.
patent: 6822105 (2004-11-01), Luxem et al.
patent: 2006/0224005 (2006-10-01), Felly
patent: 111694 (1996-12-01), None
patent: 00/05327 (2000-02-01), None
RO 111694, Stepan, E. et al, Solvent-based process for manufacture soaps of fatty acid salts from triglycerides, 1996, English language Abstract, 1 page.

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