FIELD: chemistry.
SUBSTANCE: invention refers to a method for fluorination, which involves: the stage of activation involving contacting a fluorination catalyst and a gas flow containing an oxidant for at least one hour; and at least one reaction stage involving a reaction of a chlorinated compound and hydrogen fluoride in the gas phase in the presence of the fluorination catalyst to produce the fluorinated compound. The gas flow containing the oxidant is free from hydrogen fluoride.
EFFECT: method enables achieving an increased degree of conversion or selectivity, and is effective for a long period of time.
20 cl, 2 tbl, 7 ex
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Author |
Number |
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