Global patent index - EP 0866890 B1

EP 0866890 B1 2000-02-09 - PROCESS FOR DIRECT ELECTROCHEMICAL GASEOUS PHASE PHOSGENE SYNTHESIS

Title (en)

PROCESS FOR DIRECT ELECTROCHEMICAL GASEOUS PHASE PHOSGENE SYNTHESIS

Title (de)

VERFAHREN ZUR DIREKTEN ELEKTROCHEMISCHEN GASPHASEN-PHOSGENSYNTHESE

Title (fr)

PROCEDE DE SYNTHESE ELECTROCHIMIQUE DIRECTE DE PHOSGENE EN PHASE GAZEUSE

Publication

EP 0866890 B1 (DE)

Application

EP 96938176 A

Priority

  • DE 19543678 A
  • EP 9604934 W

Abstract (en)

[origin: DE19543678A1] The invention relates to a process for direct electrochemical gaseous phase phosgene synthesis, during which an electrochemical cell (1) with a proton-conducting membrane (4) is used. Dry HC1 gas and dry CO gas are fed as educts to the anode (2) of the electrochemical cell (1). The chlorine radicals obtained during anodic oxidation of HC1 gas subsequently react with the CO gas directly to form phosgene, while the protons formed simultaneously migrate through the membrane (4) to the cathode (3) where they are reduced to form hydrogen or, in the presence of oxygen, to form water.

IPC 1-7 (main, further and additional classification)

C25B 1/26

IPC 8 full level (invention and additional information)

C25B 1/26 (2006.01)

CPC (invention and additional information)

C25B 1/26 (2013.01)

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

DE 19543678 A1 19970528; BR 9611499 A 19990713; CA 2237637 A1 19970529; CN 1060824 C 20010117; CN 1202937 A 19981223; EP 0866890 A1 19980930; EP 0866890 B1 20000209; ES 2144784 T3 20000616; HK 1018081 A1 20010629; JP 2000501143 A 20000202; KR 19990071564 A 19990927; MX 203057 B 20010713; MX 9803973 A 19980930; TW 420726 B 20010201; US 5961813 A 19991005; WO 9719205 A1 19970529

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