Process for the reactivation of iodine-containing catalysts

Details Process for the reactivation of iodine-containing catalysts Process for the reactivation of iodine-containing catalysts

1996-08-26

1997-12-02

Dentz, Bernard

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

502 24, 502 27, 556104, B01J 2034, C07D30728

Patent

active

056938330

ABSTRACT:
Disclosed is a process for converting an iodine-free organotin (IV) compound resulting from the decomposition of an organotin (IV) iodide during the catalytic isomerization of .gamma.,.delta.-epoxyalkenes to 2,5-dihydrofurans to the corresponding, catalytically active organotin (IV) iodide by intimately contacting a catalyst mixture comprising (i) an organotin (IV) iodide, (ii) an iodine-free organotin (IV) compound resulting from the decomposition of the organotin (IV) iodide of component (i), and (iii) a solvent selected from hydrocarbons and chlorocarbons with aqueous hydrogen iodide.

REFERENCES:
patent: 3544608 (1970-12-01), Pande
patent: 5238889 (1993-08-01), Falling et al.
patent: 5315019 (1994-05-01), Phillips et al.

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