| 摘要 |
The present invention relates to a process for continuously producing a perfluoroalkyl iodide represented by the general formula R<SUB>f</SUB>(CF<SUB>2</SUB>CF<SUB>2</SUB>)<SUB>n</SUB>I, wherein R<SUB>f </SUB>is a C<SUB>1-6 </SUB>perfluoroalkyl and n is an integer from 1 to 4, the method comprising continuously supplying a perfluoroalkyl iodide as a telogen represented by the general formula R<SUB>f</SUB>I, wherein R<SUB>f </SUB>is as defined above, and tetrafluoroethylene as a taxogen to a tubular reactor packed with a metal catalyst comprising a powdery spherical metal or a sintered metal; and conducting telomerization at a temperature of 60 to 160° C. under a pressure of 0.1 to 5 MPa (gauge pressure). According to the present invention, medium-chain perfluoroalkyl iodides can be continuously and efficiently produced with little generation of impurities, such as hydrogen-containing organic compounds and the like.
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