Manufacture of perchloroethylene from carbon tetrachloride in the presence of hydrogen.

摘要

A non-catalytic thermal process for prodn. of perchloroethylene and HCl from CCl4, in the presence of H2, under conditions which maximise CCl4 consumption, comprises: i) reacting: a) CCl4; b) elemental H and Cl, sufficient HCl being introduced to provide the heat for pyrolysis of CCl4 at 500-700 deg.C; c) excess CCl4 used as diluent to maintain the temp. in step b); ii) withdrawing a prod. mixt. from the reaction zone; iii) condensing the prod. mixt.; (iv) sepg. perchloroethylene from the mixt.