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1. EP1003700 - METHOD FOR PRODUCING METAL-FREE GUERBET ALCOHOLS

Office
European Patent Office
Application Number 98947392
Application Date 07.08.1998
Publication Number 1003700
Publication Date 31.05.2000
Publication Kind B1
IPC
C07B 61/00
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
BGENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
61Other general methods
C07C 29/34
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
32increasing the number of carbon atoms by reactions without formation of hydroxy groups
34by condensation involving hydroxy groups or the mineral ester groups derived therefrom, e.g. Guerbet reaction
C07C 29/80
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Stabilisation; Use of additives
76by physical treatment
80by distillation
C07C 31/125
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
31Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
02Monohydroxylic acyclic alcohols
125containing five to twenty-two carbon atoms
CPC
C07C 29/34
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
32increasing the number of carbon atoms by reactions without formation of -OH groups
34by condensation involving hydroxy groups or the mineral ester groups derived therefrom, e.g. Guerbet reaction
C07C 29/80
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
80by distillation
Applicants SASOL GERMANY GMBH
Inventors SCHERF ERICH
LETSCH HANS-JUERGEN
SCHROEDER CLEMENS
HERRMANN ALBERT THOMAS
Designated States
Priority Data 19734673 11.08.1997 DE
9802345 07.08.1998 DE
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON METALLFREIEN GUERBETALKOHOLEN
(EN) METHOD FOR PRODUCING METAL-FREE GUERBET ALCOHOLS
(FR) PROCEDE DE FABRICATION D'ALCOOLS DE GUERBET EXEMPTS DE METAUX
Abstract
(DE) Es wird ein Verfahren zur Herstellung von Guerbetalkoholen ohne Schwermetall- und Seifengehalt bereitgestellt, wonach man primäre und/oder sekundäre Alkohole mit 2 bis 30 Kohlenstoffatomen in Gegenwart von alkalischen Katalysatoren und/oder Schwermetall-Katalysatoren bei erhöhter Temperatur und unter Entfernung des Reaktionswassers kondensiert und das Reaktionsprodukt anschließend ohne weitere Reinigungsschritte unmittelbar durch Destillation abtrennt.
(EN) The invention relates to a method for producing metal-free and soap-free Guerbet alcohols, whereby primary and/or secondary alcohols containing 2 to 30 carbon atoms are condensed in the presence of alkaline and/or heavy metal catalysts at a high temperature, while water is removed from the reaction, and whereby the product is then directly separated from the reaction by distillation, with no additional purification process.
(FR) L'invention concerne un procédé de fabrication d'alcools de Guerbet exempts de métaux lourds et de savons, caractérisé en ce qu'on condense des alcools primaires et/ou secondaires de 2 à 30 atomes de carbone, en présence de catalyseurs alcalins et/ou de catalyseurs aux métaux lourds, à température élevée et tout en éliminant l'eau de la réaction, et en ce qu'on sépare ensuite directement par distillation le produit de la réaction, sans autres étapes de purification.