FIELD: catalytic chemistry. SUBSTANCE: catalyst contains, mas.%: promoter in form of zinc or zinc compound 0.5-25; the balance, chromium oxide (3). Catalyst additionally contains aluminium oxide or fluoride, or magnesium oxide. Product: low aliphatic fluorohydrocarbons. Reagent 1: alkane or alkene C1-C4, 1 atom of chlorine. Reagent 2: hydrogen fluoride. Reaction conditions: vapor phase; 180-350 C. EFFECT: higher efficiency. 9 cl, 6 tbl
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