Title of Invention	A PROCESS FOR RECOVERING FATTY ALCOHOL OR ALCOHOLS FROM A FATTY ALCOHOL FRACTION
Abstract	A process is described for separating fatty alcohols from a fatty alcohol fraction which contains a minor amount of a lower alkyl (e.g. methyl) fatty acid ester or esters. The fatty alcohol fraction is subjected to transesterification to convert substantially all of any lower alkyl ester present to wax ester or esters. The resulting lower alkanol (e.g. methanol) is evaporated. Then the intermediate transesterification mixture is distilled to recover fatty alcohols. The residue from this distillation step is mixed with excess lower alkanol and again transesterified to reconvert wax ester or esters to lower alkyl esters. This mixture is re-distilled and the recovered mixture of lower alkanol and fatty alcohol or alcohols can be recycled. If an alkyl titanate is used as transesterification catalyst then both distillation steps can be effected without prior separation of the catalyst and the non volatile residue from the second distillation step can be recycled to the first transesterification step.

Title of Invention

A PROCESS FOR RECOVERING FATTY ALCOHOL OR ALCOHOLS FROM A FATTY ALCOHOL FRACTION

Abstract

A process is described for separating fatty alcohols from a fatty alcohol fraction which contains a minor amount of a lower alkyl (e.g. methyl) fatty acid ester or esters. The fatty alcohol fraction is subjected to transesterification to convert substantially all of any lower alkyl ester present to wax ester or esters. The resulting lower alkanol (e.g. methanol) is evaporated. Then the intermediate transesterification mixture is distilled to recover fatty alcohols. The residue from this distillation step is mixed with excess lower alkanol and again transesterified to reconvert wax ester or esters to lower alkyl esters. This mixture is re-distilled and the recovered mixture of lower alkanol and fatty alcohol or alcohols can be recycled. If an alkyl titanate is used as transesterification catalyst then both distillation steps can be effected without prior separation of the catalyst and the non volatile residue from the second distillation step can be recycled to the first transesterification step.

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Patent Number

175663

Indian Patent Application Number

49/MAS/1990

PG Journal Number

30/2009

Publication Date

24-Jul-2009

Grant Date

16-Feb-1996

Date of Filing

17-Jan-1990

Name of Patentee

M/S. DAVY MCKEE (LONDON) LIMITED

Applicant Address

DAVY HOUSE, 30 EASTBOURNE TERRACE LONDON W2, 6LE

Inventors:

#	Inventor's Name	Inventor's Address
1	MARTYN WILMOTT	FIFE ROAD, NORTON, STOCKTON-ON-TEES, CLEVELAND TS20 1EE
2	GEORGE EDWIN HARRISON	15 WEST PARK AVENUE, BILLERICAY, ESSEX CM12 9EE,
3	JOHN SCARLETT	2 CLEVELAND VIEW, KIRK MERRINGTON, SPENNYMOOR, COUNTRY DURHAM
4	MICHAEL ANTHONY WOOD	2 WATCHGATE, NUNTHORPE, MIDDLESBROUGH, CLEVELAND TS7 OQS,
5	DONALD HUGH MCKINLEY	55 GOODYERS AVENUE, RADLETT, HERTFORDSHIRE WD7 8AZ

PCT International Classification Number

C07C 29/00

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	8900993.0	1989-01-17	U.K.