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PROBLEM TO BE SOLVED : To provide a method of preparing a supported palladium catalyst in which consumption of palladium which is an expensive and rare metal is reduced, and which is highly active to a catalytic reaction of a dehalogenation reaction or the like of an organic halogen compound.
SOLUTION : The preparation method is characterized in that a palladium (II) compound is supported to a support, then is treated with a 2-propanol solution which dissolves an alkali compound to be activated, and it becomes possible to obtain a catalytic activity which is appropriate especially to a catalytic reaction in which an organic halogen compound is dehalogenated and made harmless.
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