DK0483015T3 - Electrochemical cell, especially for the recovery of chromic acid - Google Patents

Electrochemical cell, especially for the recovery of chromic acid

Info

Publication number
DK0483015T3
DK0483015T3 DK91402861.8T DK91402861T DK0483015T3 DK 0483015 T3 DK0483015 T3 DK 0483015T3 DK 91402861 T DK91402861 T DK 91402861T DK 0483015 T3 DK0483015 T3 DK 0483015T3
Authority
DK
Denmark
Prior art keywords
electrochemical cell
chromic acid
cathode
compartment
recovery
Prior art date
Application number
DK91402861.8T
Other languages
Danish (da)
Inventor
Marie-Marguerite Letord
Andre Ducourroy
Jacques Audran
Original Assignee
Electricite De France
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electricite De France filed Critical Electricite De France
Application granted granted Critical
Publication of DK0483015T3 publication Critical patent/DK0483015T3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/46—Apparatus therefor
    • B01D61/50—Stacks of the plate-and-frame type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/52—Accessories; Auxiliary operation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D21/00—Processes for servicing or operating cells for electrolytic coating
    • C25D21/16—Regeneration of process solutions
    • C25D21/18—Regeneration of process solutions of electrolytes

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Electrochemical cell, especially for electrodialysis for the purpose of reconcentrating chromic acid, of the type comprising at least one cathode compartment and at least one anode compartment, each sheltering a cathode and an anode respectively, and separated by at least one ion exchange membrane. According to the invention the cell is made in the form of a tight stacking of cathode and anode compartments, in that each compartment is defined by a rigid frame (110) at least one arm (114) of which has a through opening (115) and in that each electrode (180, 190) fastened to an electrode support (160, 170) is capable of being mounted removably in its corresponding frame from the outside, through the said opening, by leakproof fastening of each electrode support onto the associated frame. <IMAGE>
DK91402861.8T 1990-10-26 1991-10-25 Electrochemical cell, especially for the recovery of chromic acid DK0483015T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9013283A FR2668468B1 (en) 1990-10-26 1990-10-26 ELECTROCHEMICAL CELL, ESPECIALLY FOR RECYCLING CHROMIC ACID.

Publications (1)

Publication Number Publication Date
DK0483015T3 true DK0483015T3 (en) 1995-05-22

Family

ID=9401587

Family Applications (1)

Application Number Title Priority Date Filing Date
DK91402861.8T DK0483015T3 (en) 1990-10-26 1991-10-25 Electrochemical cell, especially for the recovery of chromic acid

Country Status (6)

Country Link
EP (1) EP0483015B1 (en)
AT (1) ATE118700T1 (en)
DE (1) DE69107570T2 (en)
DK (1) DK0483015T3 (en)
ES (1) ES2069247T3 (en)
FR (1) FR2668468B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2983656A (en) * 1959-02-10 1961-05-09 Socony Mobil Oil Co Inc Electrolytic method of purifying amine solutions
US3375179A (en) * 1964-10-29 1968-03-26 Litton Systems Inc Method of anodizing beryllium and product thereof
CA1057234A (en) * 1976-07-22 1979-06-26 Noranda Mines Limited Apparatus for the electrolytic regeneration of hexavalent chromium compounds and recovery of metals from waste bichromate solutions
EP0060091A3 (en) * 1981-03-06 1983-06-29 Innova, Inc. Apparatus and method for electrolytically treating an ion containing liquid such as chromium plating rinse water
DE3446329A1 (en) * 1984-12-19 1986-07-03 Minemet Recherche S.A., Trappes Apparatus for carrying out electrodialysis processes

Also Published As

Publication number Publication date
DE69107570D1 (en) 1995-03-30
EP0483015B1 (en) 1995-02-22
ES2069247T3 (en) 1995-05-01
ATE118700T1 (en) 1995-03-15
FR2668468A1 (en) 1992-04-30
EP0483015A1 (en) 1992-04-29
FR2668468B1 (en) 1993-02-19
DE69107570T2 (en) 1995-07-27

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