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.
描述了适用于催化1,1,2-三卤
乙烷蒸汽相脱卤反应的组合物,例如
1,1,2-三氯乙烷转化为二
氯乙烯,例如,
1,1,2-三氯乙烷转化为
氯乙烯。这些材料包括
活性炭和至少一种
苯并咪唑含有物质,本文中定义为包括
苯并咪唑、其衍
生物、其盐或其混合物。还描述了制备和使用这些催化组合物的方法。