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全氯乙烯在气相状态下,采用γ-和/或β-AlF3为载体的氧化铬催化剂,以氢氟化工艺方法制备1,1,1-三氟-2,2-二氯乙烷,它可用作一种液体气雾剂或推进剂。
Perchlorethylene 1,1,1-trifluoro-2,2-dichloroethane is prepared by a hydrofluorination process in the gas phase using a chromia catalyst supported on γ- and / or β-AlF3 Can be used as a liquid aerosol or propellant.