Herstellung von fluorreichen Verbindungen der Reihe C2ClnF6−n in heterogener Katalyse

Preparation of Compounds of the Series C₂Cl_nF_6?n with High Fluor Contents by Heterogeneous Catalysis A survey is given on catalytic systems for Cl? F exchange reactions with C₂Cl₆. A catalyst is described which is formed by reaction of C₂Cl₄/Cl₂/HF on γ-Al₂O₃ in Ni reactors. Deposition of nickel proceeds by the reaction Ni(CO)₄ → Ni + 4 CO. The formation of the catalyst and the catalytic reactions which give highly fluorinated C? Cl? F compounds are discussed.