The Telomerization Reaction of Ethylene with Carbon Tetrachloride Initiated by Zinc Powder

Abstract

It was found that a metal powder alone can initiate telomerization reaction. The telomerization reaction of ethylene with carbon tetrachloride under ethylene pressures by batchwise system initiated by metal zinc powder were studied.
In this catalyst system, the reaction rate based on the concentration change of carbon tetrachloride was obtained larger than that in a system with other general radical initiator such as α-α'f azobisisobutyronitrile.
When solvents were used the extent of conversion of carbon tetrachloride and average telomerized degree of telomers were, in general, larger than those with metal zinc alone. The extent of conversion of carbon tetrachloride was about 90 % in the presence of zinc and tertbutanol in a temperature range from 70 to 90deg; C.