Method of obtaining primary alcohols with straight chains from C

Details Method of obtaining primary alcohols with straight chains from C Method of obtaining primary alcohols with straight chains from C

1976-06-24

1977-06-28

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252526, 252532, 260448A, 260459R, 260615B, C07C 2900, C07C 3132

Patent

active

040325822

ABSTRACT:
A method of preparing primary alcohols, virtually all with a straight chain, in which the molecular proportions are distributed on both sides of a maximum centered at 8 to 16 carbon atoms.
It comprises: reaction between a C.sub.4 hydrocarbon cut and activated aluminum and hydrogen, during which the concentration of dibutylaluminum monohydride in the reaction medium is adjusted between 20 and 80 molar %, to form a mixture of butylaluminum isomers; then a reaction wherein the isobutyl and secondary butyl groups contained in the mixture of isomers are displaced by the 1-butene in a C.sub.4 hydrocarbon cut, in at least two reaction zones arranged in series and fed in counter-current flow with the said mixture of butylaluminum isomers and with the C.sub.4 hydrocarbon cut; fixing ethylene on the tri-n-butylaluminum thus obtained to a chain length of C.sub.8 to C.sub.16 ; then oxidation with a gas containing oxygen and hydrolysis in a mixture of aliphatic primary alcohols. Such alcohols find use in detergent compositions after alkoxylation and/or sulphation of such mixtures of primary alcohol.

REFERENCES:
patent: 2863896 (1958-12-01), Johnson
patent: 2889385 (1959-06-01), Catterall et al.
patent: 3014941 (1961-12-01), Walsh
patent: 3077490 (1963-02-01), Fernald
patent: 3347894 (1967-10-01), Trebillon et al.

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