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1. WO2005068686 - PROCESS FOR THE PRODUCTION OF HIGH-PURITY CHLORINE

Publication Number WO/2005/068686
Publication Date 28.07.2005
International Application No. PCT/EP2004/053708
International Filing Date 24.12.2004
IPC
C25B 1/26 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
24of halogens or compounds thereof
26Chlorine; Compounds thereof
C25B 1/34 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
34Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts
C25B 1/46 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
34Simultaneous production of alkali metal hydroxides and chlorine, its oxyacids or salts
46in diaphragm cells
C25B 15/08 2006.01
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
15Operating or servicing of cells
08Supplying or removing reactants or electrolytes; Regeneration of electrolytes
CPC
C25B 1/26
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
01Products
24Halogens or compounds thereof
26Chlorine; Compounds thereof
C25B 1/34
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
01Products
34Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
C25B 1/46
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
01Products
34Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
46in diaphragm cells
C25B 15/08
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
15Operating or servicing cells
08Supplying or removing reactants or electrolytes; Regeneration of electrolytes
Applicants
  • SOLVAY (Société Anonyme) [BE]/[BE] (AllExceptUS)
  • PASTACALDI, Alessandra [IT]/[IT] (UsOnly)
  • HANNEUSE, Alain [BE]/[BE] (UsOnly)
  • POIRAULT, Richard [BE]/[BE] (UsOnly)
Inventors
  • PASTACALDI, Alessandra
  • HANNEUSE, Alain
  • POIRAULT, Richard
Agents
  • JACQUES, Philippe
Priority Data
04/0021212.01.2004FR
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR THE PRODUCTION OF HIGH-PURITY CHLORINE
(FR) PROCEDE DE FABRICATION DE CHLORE A PURETE ELEVEE
Abstract
(EN)
Process for the production of high-purity chlorine by electrolysis in a membrane cell of a sodium chloride brine contaminated by bromides, according to which the brine is oxidized so as to convert the bromides therein to bromates.
(FR)
L'invention porte sur un procédé de fabrication de chlore à pureté élevée par électrolyse, dans un électrolyseur à membrane, d'une saumure de chlorure de sodium contaminée par des bromures, au cours duquel la saumure est oxydée de manière à transformer les bromures en bromates.
Also published as
Latest bibliographic data on file with the International Bureau