PROCESS FOR DIRECT ELECTROCHEMICAL GASEOUS PHASE PHOSGENE SYNTHESIS.

摘要

PCT No. PCT/EP96/04934 Sec. 371 Date May 18, 1998 Sec. 102(e) Date May 18, 1998 PCT Filed Nov. 12, 1996 PCT Pub. No. WO97/19205 PCT Pub. Date May 29, 1997An electrochemical cell (1 ) having a proton-conducting membrane (4) is used in the process for the direct electrochemical gas phase synthesis of phosgene. Dry HCl gas and dry CO gas are supplied as the educts to the anode (2) of the electrochemical cell (1). The chlorine radicals formed on anodic oxidation of the HCl gas then react directly with the CO gas to yield phosgene, while the simultaneously formed protons migrate through the membrane (4) to the cathode (3) and are there reduced to hydrogen or, in the presence of oxygen, to water.