Preparation of halo-olefin

Details Preparation of halo-olefin Preparation of halo-olefin

2007-01-16

2007-01-16

Price, Elvis O. (Department: 1621)

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

Organic compounds

Halogen containing

C570S155000, C570S156000, C570S157000, C570S216000, C570S230000

Reexamination Certificate

active

11119993

ABSTRACT:
A process for preparing a halo-olefin to minimize one or more side reactions which form at least one impurity, said process comprising contacting a halogenated hydrocarbon with a metal dehalogenating agent dissolved in a solvent under conditions sufficient to dehalogenate said halogenated hydrocarbon to produce a product stream comprising said halo-olefin and at least one impurity, said metal dehalogenating agent having an average particle size within a range of average particle sizes, said impurity concentration of said product stream being essentially constant within said range and increasing significantly below said range.

REFERENCES:
patent: 2754336 (1956-07-01), Chernosky et al.
patent: 3505416 (1970-04-01), Davis et al.
patent: 5124494 (1992-06-01), Ishihara et al.
patent: 0364103 (1990-04-01), None
patent: 0416615 (1991-03-01), None
patent: 0496446 (1992-07-01), None

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