Process for the preparation of unsaturated fatty alcohols from lauric oils

Process for the preparation of unsaturated fatty alcohols from lauric oils

Production of unsaturated fatty alcohols from lauric oils by selective hydrogenation of unsaturated methyl ester fraction separated by fractional crystallisation. Production of unsaturated fatty alcohols comprises: (a) transesterifying a deacidified lauric oil with methanol to obtain a total fatty a...

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Hauptverfasser: SEIFERT, EKKEHARD, WIECZOREK, FRANK.NAT, KONETZKE, GERHARD.NAT
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Sprache:eng ; fre ; ger
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ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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WIECZOREK, FRANK.NAT
KONETZKE, GERHARD.NAT
description Production of unsaturated fatty alcohols from lauric oils by selective hydrogenation of unsaturated methyl ester fraction separated by fractional crystallisation. Production of unsaturated fatty alcohols comprises: (a) transesterifying a deacidified lauric oil with methanol to obtain a total fatty acid methyl ester mixture; (b) separating the ester mixture into a 12-16C methyl ester fraction (I) and an 18C methyl ester fraction (II) by fractional distillation, where (II) contains practically all of the unsaturated methyl esters; (c) winterizing fraction (II) by solventless fractional crystallization to remove saturated methyl esters; (d) subjecting the winterized fraction (II) to selective hydrogenation to obtain unsaturated fatty alcohols with an iodine number of 90-100; (e) purifying the unsaturated fatty alcohols by distillation; and optionally (f) blending the product with other fatty alcohols to obtain a desired iodine number.
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subjects ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
title Process for the preparation of unsaturated fatty alcohols from lauric oils
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