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EP1061158A3 - Parallel operating of amalgam and membrane electrolytic cells - Google Patents

Parallel operating of amalgam and membrane electrolytic cells Download PDF

Info

Publication number
EP1061158A3
EP1061158A3 EP00111000A EP00111000A EP1061158A3 EP 1061158 A3 EP1061158 A3 EP 1061158A3 EP 00111000 A EP00111000 A EP 00111000A EP 00111000 A EP00111000 A EP 00111000A EP 1061158 A3 EP1061158 A3 EP 1061158A3
Authority
EP
European Patent Office
Prior art keywords
amalgam
electrolytic cells
membrane electrolytic
parallel operating
electrolysis
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP00111000A
Other languages
German (de)
French (fr)
Other versions
EP1061158A2 (en
EP1061158B1 (en
Inventor
Fritz Dr. Gestermann
Hans-Dieter Pinter
Helmut Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of EP1061158A2 publication Critical patent/EP1061158A2/en
Publication of EP1061158A3 publication Critical patent/EP1061158A3/en
Application granted granted Critical
Publication of EP1061158B1 publication Critical patent/EP1061158B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/36—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in mercury cathode cells
    • C25B1/42—Decomposition of amalgams
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Secondary Cells (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)

Abstract

The invention relates to a process for the electrolysis of sodium chloride-containing brine with parallel operation of amalgam electrolysis units (5) and membrane electrolysis units (4) with a common brine circuit using a mercury-resistant oxygen consumable cathode in the membrane electrolysis unit (4).
EP00111000A 1999-06-12 2000-05-30 Parallel operating of amalgam and membrane electrolytic cells Expired - Lifetime EP1061158B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19926887 1999-06-12
DE19926887A DE19926887A1 (en) 1999-06-12 1999-06-12 Electrolysis process

Publications (3)

Publication Number Publication Date
EP1061158A2 EP1061158A2 (en) 2000-12-20
EP1061158A3 true EP1061158A3 (en) 2000-12-27
EP1061158B1 EP1061158B1 (en) 2004-04-14

Family

ID=7911060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111000A Expired - Lifetime EP1061158B1 (en) 1999-06-12 2000-05-30 Parallel operating of amalgam and membrane electrolytic cells

Country Status (14)

Country Link
US (1) US6224740B1 (en)
EP (1) EP1061158B1 (en)
JP (1) JP2001029956A (en)
KR (1) KR20010049521A (en)
CN (1) CN1277269A (en)
AT (1) ATE264412T1 (en)
BR (1) BR0002624A (en)
CA (1) CA2311042A1 (en)
DE (2) DE19926887A1 (en)
ES (1) ES2219223T3 (en)
NO (1) NO20002992L (en)
SG (1) SG87894A1 (en)
TW (1) TW539774B (en)
ZA (1) ZA200002914B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10149779A1 (en) * 2001-10-09 2003-04-10 Bayer Ag Returning process gas to an electrochemical process with educt gas via gas jet pump
US7105460B2 (en) 2002-07-11 2006-09-12 Applied Materials Nitrogen-free dielectric anti-reflective coating and hardmask
WO2005042130A1 (en) * 2003-10-31 2005-05-12 Metal Alloy Reclaimers, Inc Ii Process for reduction of inorganic contaminants from waste streams
US8322909B2 (en) * 2004-09-22 2012-12-04 3M Deutschland Gmbh Mixer for multi-component pastes, kit, and method of mixing paste components
EP1640060A1 (en) 2004-09-22 2006-03-29 3M Espe Ag Mixer for multi-component pastes, kit, and method of mixing paste components
JP2008223115A (en) * 2007-03-15 2008-09-25 Asahi Kasei Chemicals Corp Salt water treatment method
CN102648045A (en) 2009-07-06 2012-08-22 马尔系统公司 Media for removal of contaminants from fluid streams and method of making and using same
CN106216360A (en) * 2016-08-16 2016-12-14 南京格洛特环境工程股份有限公司 A kind of refined and resource utilization method of side-product salt

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543379A1 (en) * 1985-12-07 1987-06-11 Metallgesellschaft Ag Process for the electrolytic production of alkali metal hydroxide, chlorine and hydrogen
US5746896A (en) * 1995-04-10 1998-05-05 Permelec Electrode Ltd. Method of producing gas diffusion electrode

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3037818C2 (en) * 1980-10-07 1985-08-14 Hoechst Ag, 6230 Frankfurt Process for the production of sodium bisulfate
US5028302A (en) * 1989-11-16 1991-07-02 Texas Brine Corporation Purification of chlor-alkali membrane cell brine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543379A1 (en) * 1985-12-07 1987-06-11 Metallgesellschaft Ag Process for the electrolytic production of alkali metal hydroxide, chlorine and hydrogen
US5746896A (en) * 1995-04-10 1998-05-05 Permelec Electrode Ltd. Method of producing gas diffusion electrode

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
A.J. ACIOLI MACIEL: "Combination of the amalgam cell and the membrane cell processes for chlor-alkali production", JOURNAL OF APPLIED ELECTROCHEMISTRY, vol. 22, no. 8, 1992, pages 699 - 704, XP000288504 *

Also Published As

Publication number Publication date
TW539774B (en) 2003-07-01
DE19926887A1 (en) 2000-12-14
NO20002992D0 (en) 2000-06-09
DE50006039D1 (en) 2004-05-19
US6224740B1 (en) 2001-05-01
JP2001029956A (en) 2001-02-06
CN1277269A (en) 2000-12-20
ZA200002914B (en) 2000-12-12
CA2311042A1 (en) 2000-12-12
ES2219223T3 (en) 2004-12-01
EP1061158A2 (en) 2000-12-20
SG87894A1 (en) 2002-04-16
KR20010049521A (en) 2001-06-15
ATE264412T1 (en) 2004-04-15
EP1061158B1 (en) 2004-04-14
NO20002992L (en) 2000-12-13
BR0002624A (en) 2001-01-02

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