PROCESS FOR THE ELECTROLYSIS OF TECHNICAL-GRADE HYDROCHLORICACID CONTAMINATED WITH ORGANIC SUBSTANCES USING OXYGEN-CONSUMING CATHODES
摘要
The present invention relates to a process for electrolysing an aqueous solution of hydrochloric acid to chlorine in an electrochemical cell provide d with an anode compartment and a cathode compartment including at least one g as diffusion cathode. The gas diffusion cathode comprises an electrically conductive web provided on at least on side thereof with a coating of a catalyst comprising rhodium sulphide for the electro-reduction of oxygen. Th e novel catalyst for oxygen reduction has an improved chemical stability towar ds highly corrosive media and a high electrocatalytic activity in the presence of organic contaminants.
申请公布号
CA2419584(A1)
申请公布日期
2002.03.07
申请号
CA20012419584
申请日期
2001.08.31
申请人
DE NORA ELETTRODI S.P.A.;BAYER AG
发明人
ALLEN, ROBERT J.;SHAIKH, KHALEDA;CZERWIEC, DANIEL;GIALLOMBARDO, JAMES R.;DE CASTRO, EMORY S.;SPEER, GERD;PINTER, HANS-DIETER;GESTERMANN, FRITZ