Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2005-06-03
2008-12-30
Parsa, Jafar (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S155000, C570S189000
Reexamination Certificate
active
07470827
ABSTRACT:
Described are compositions adapted to catalyze the vapor phase dehydrohalogenation of 1,1,2-trihaloethane to 1,1-dihaloethylene, e.g., 1,1,2-trichloroethane to vinylidene chloride. These materials include activated carbon and at least one benzimidazole-containing material defined herein as including benzimidazole, a derivative thereof, a salt thereof or mixtures thereof. Also described are methods for producing and using these catalytic compositions.
REFERENCES:
patent: 5210344 (1993-05-01), Reed et al.
patent: 5645374 (1997-07-01), Lesage et al.
patent: 2005/0090697 (2005-04-01), Webb
patent: 9011131 (1990-04-01), None
Bilokopytov Yurii Vasyliyovych
Chernobaev Igorlvanovych
Serhuchev Yurii Oleksiyovych
Mallak Frank
Parsa Jafar
PPG Industries Ohio Inc.
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