Patent ID: 8232434

Claim:
A process for producing a fluoroalkyl iodide telomer, which comprises supplying a distillation apparatus with a fluoroalkyl iodide represented by a general formula RfI, wherein Rf is a C 1-10 fluoroalkyl group, and tetrafluoroethylene which are used as a telogen and a taxogen, respectively, and subjecting these compounds to a telomerization reaction in the presence of a metal catalyst with heating in a reaction zone located in an intermediate part of the distillation apparatus to generate a fluoroalkyl iodide telomer represented by a general formula Rf(CF 2 CF 2 ) n I, wherein Rf is the same as defined above and n is an integer of 1-4; separating a fraction comprising the fluoroalkyl iodide telomer by distillation; separating a fraction comprising the tetrafluoroethylene by distillation; and then returning the tetrafluoroethylene fraction to the distillation apparatus so that the tetrafluoroethylene circulates through the reaction zone.