Production of fatty alcohol with recovery thereof from the hydrogenation catalyst

In a process of recovering and cleaning catalysts in the continuous production of fat alcohols by a catalytic hydrogenation of fatty acids or fatty acid derivatives at temperatures of 240 DEG to 330 DEG C. and pressures of 200 to 700 bar in the presence of copper-chromium oxide catalysts, wherein th...

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Bibliographic Details
Main Author STOENNER; HANS-MARTIN
Format Patent
LanguageEnglish
Published 13.11.1984
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
THEIR RELEVANT APPARATUS
TRANSPORTING
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Summary:In a process of recovering and cleaning catalysts in the continuous production of fat alcohols by a catalytic hydrogenation of fatty acids or fatty acid derivatives at temperatures of 240 DEG to 330 DEG C. and pressures of 200 to 700 bar in the presence of copper-chromium oxide catalysts, wherein the reaction is carried out in the presence of material which has been already reacted, the resulting dispersion is circulated through the filter which is due for cleaning until the contents of the stirring vessel is free of solids and the filter cake is substantially free of product, the liquid from which solids have been removed is separated into cleaning liquor and recovered product by a simple sedimentation in a liquid-liquid separator or by a distillation, the recovered product is fed to the main product, the catalyst which is moistened with the cleaning liquor and substantially free of product is withdrawn and, if required, is dryed.
Bibliography:Application Number: US19830497328