Process and unit for production of perfluoroalkyl iodide...

Details Process and unit for production of perfluoroalkyl iodide... Process and unit for production of perfluoroalkyl iodide...

2007-03-16

2009-10-13

O'Sullivan, Peter G (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

C502S021000, C570S126000, C570S138000, C570S172000, C570S182000

Reexamination Certificate

active

07601878

ABSTRACT:
A solid catalyst used in, for example, production of a perfluoroalkyl iodide telomer is effectively and continuously recovered and the recovered catalyst is continuously recycled to the reactor for reuse. A slurry containing a reaction product and the catalyst is drawn from the reaction system, and the catalyst in the drawn slurry is classified by means of a hydrocyclone, whereby a high-concentration slurry whose catalyst concentration is higher than that of the drawn slurry and a low-concentration slurry whose catalyst concentration is lower than that of the drawn slurry are obtained, and the high-concentration slurry is recycled to the reaction system.

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