Recirculation telomerization process and its liquid telomers and

Details Recirculation telomerization process and its liquid telomers and Recirculation telomerization process and its liquid telomers and

1976-11-08

1977-08-09

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260669P, 526 75, 526 88, 526173, 23271P, 23288A, C07C 1502

Patent

active

040410889

ABSTRACT:
Recirculation process and apparatus for the preparation of normally liquid telomers derived from the reaction of a gaseous taxogen with a solution in a liquid telogen, such as toluene, of an organometal telomerization initiator, such as a mixture or complex of n-butyllithium and potassium t-butoxide, in a container, wherein a controlled stream of the gaseous taxogen is continuously passed through fine apertures, as in a screen, into the liquid telogen solution of said initiator while said telogen solution is passed from said container through a reaction zone in a reaction chamber, whereby to produce the normally liquid telomer, and, thereafter, said liquid telomer is continuously returned to commingle with the solution in the container of said telogen and initiator, and continuously recirculating the contents of said container into said reaction zone for further reaction with said gaseous taxogen until the desired concentration of liquid telomer is produced. The process is most desirably carried out in a controlled manner to prevent any undesirable excess of the taxogen from accumulating during the chain transfer step of the telomerization process. The process also results in the production of novel liquid telomers or liquid telomers having novel and advantageous properties in relation to otherwise generally similar liquid telomers heretofore known to the art.

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