EP1259658B1 - Method and apparatus for the on-site generation of a gas - Google Patents

Method and apparatus for the on-site generation of a gas Download PDF

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Publication number
EP1259658B1
EP1259658B1 EP01908028A EP01908028A EP1259658B1 EP 1259658 B1 EP1259658 B1 EP 1259658B1 EP 01908028 A EP01908028 A EP 01908028A EP 01908028 A EP01908028 A EP 01908028A EP 1259658 B1 EP1259658 B1 EP 1259658B1
Authority
EP
European Patent Office
Prior art keywords
gas
electrolyte
site generation
electrolyte solution
electrolysis cell
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.)
Expired - Lifetime
Application number
EP01908028A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1259658A1 (en
Inventor
Ullrich Klamm
John Kohler
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.)
Global Patents Development Corp
Original Assignee
Global Patents Development Corp
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 Global Patents Development Corp filed Critical Global Patents Development Corp
Publication of EP1259658A1 publication Critical patent/EP1259658A1/en
Application granted granted Critical
Publication of EP1259658B1 publication Critical patent/EP1259658B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes

Definitions

  • This invention relates to a method and an apparatus for the on-site generation of a gas, particularly, but not exclusively, chlorine gas.
  • Chlorine gas is considered to be a hazardous substance and strict controls govern its storage and transport. In addition and because of its hazardous status, it is expensive to transport pressurised vessels containing liquid chlorine. This increases the costs of production facilities using the gas.
  • Apparatuses which generate chlorine gas by means of electrolysis are well known. These apparatuses generate chlorine gas from the anode of an electrolytic cell through which a solution of sodium chloride is passed. At the cathode hydrogen gas and sodium hydroxide are produced.
  • the method includes the production of sodium hypochlorite, alternatively potassium hypochlorite by mixing chlorine and sodium hydroxide, alternatively chlorine and potassium hydroxide, produced by the method of the invention.
  • anolyte and catholyte sections of the or each electrolytic cell to be separated from one another by an ion selective membrane, preferably a perfluoropolymer membrane, which allows the passage of sodium, alternatively potassium, ions therethrough but which is impermeable to chlorine and hydrogen gas.
  • an ion selective membrane preferably a perfluoropolymer membrane, which allows the passage of sodium, alternatively potassium, ions therethrough but which is impermeable to chlorine and hydrogen gas.
  • an apparatus (20) for the on-site generation of chlorine gas comprises at least one electrolysis cell (21) having an anolyte section and a catholyte section. At least one section which, in this embodiment, is the anolyte section, is connected by a conduit (22) to a fluid heater (23) which, in use, heats an electrolyte solution prior to its ingress into said section of the electrolysis cell (21) and facilitates circulation of the electrolyte solution through the apparatus by means of a thermosyphon effect.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Hybrid Cells (AREA)
EP01908028A 2000-02-25 2001-02-21 Method and apparatus for the on-site generation of a gas Expired - Lifetime EP1259658B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ZA200000931 2000-02-25
ZA200000931 2000-02-25
PCT/IB2001/000230 WO2001063011A1 (en) 2000-02-25 2001-02-21 Method and apparatus for the on-site generation of a gas

Publications (2)

Publication Number Publication Date
EP1259658A1 EP1259658A1 (en) 2002-11-27
EP1259658B1 true EP1259658B1 (en) 2007-10-10

Family

ID=25588641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01908028A Expired - Lifetime EP1259658B1 (en) 2000-02-25 2001-02-21 Method and apparatus for the on-site generation of a gas

Country Status (10)

Country Link
US (1) US20040035704A1 (pt)
EP (1) EP1259658B1 (pt)
CN (1) CN1288280C (pt)
AT (1) ATE375410T1 (pt)
AU (2) AU3588701A (pt)
BR (1) BR0108641A (pt)
CA (1) CA2401203C (pt)
DE (1) DE60130870T2 (pt)
EA (1) EA004521B1 (pt)
WO (1) WO2001063011A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007073075A1 (en) * 2005-12-20 2007-06-28 Fixon E & C Co., Ltd. Reinforcement method and reinforcement structure of the corrugated steel plate structure
CA2746544C (en) 2008-12-17 2018-10-16 Akzo Nobel N.V. Process for producing chlorine, caustic soda, and hydrogen
JP5688103B2 (ja) * 2013-01-28 2015-03-25 ペルメレック電極株式会社 電解水製造方法及び装置
CN107254681A (zh) * 2017-05-17 2017-10-17 宁波东盛集成电路元件有限公司 一种用于三氯化铁刻蚀液再生的循环电解方法及其装置
CN107059013A (zh) * 2017-05-17 2017-08-18 宁波东盛集成电路元件有限公司 一种用于三氯化铁刻蚀液再生的循环电解装置
CN111826676A (zh) * 2020-07-21 2020-10-27 程正宇 一种实验用氢氧化钠生产方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1045681A (en) * 1911-04-18 1912-11-26 Carey E Cummins Storm-sash.
US4308123A (en) * 1979-11-30 1981-12-29 Hydro-Chlor International, Inc. Apparatus for the small-scale manufacture of chlorine and sodium hydroxide or sodium hypochlorite
DE3008563A1 (de) * 1980-03-06 1981-09-17 Hoechst Ag, 6000 Frankfurt Verfahren und vorrichtung zur herstellung waessriger natriumchlorid-loesungen aus steinsalz
AU7467681A (en) * 1980-08-27 1982-06-24 Fernand Louis Oscar Joseph Chauvier Apparatus for chlorine production
US4528168A (en) * 1983-10-14 1985-07-09 The Dow Chemical Company Brine saturator method of operation
US4789503A (en) * 1987-06-15 1988-12-06 Atara Corporation Air removal snorkel device
AU8737998A (en) * 1997-08-08 1999-03-01 Inchem (Proprietary) Limited Method and apparatus for generating a gas

Also Published As

Publication number Publication date
ATE375410T1 (de) 2007-10-15
CA2401203A1 (en) 2001-08-30
DE60130870D1 (de) 2007-11-22
BR0108641A (pt) 2002-12-10
EA200200903A1 (ru) 2003-06-26
CN1288280C (zh) 2006-12-06
CA2401203C (en) 2009-12-08
EP1259658A1 (en) 2002-11-27
CN1420945A (zh) 2003-05-28
DE60130870T2 (de) 2008-07-17
US20040035704A1 (en) 2004-02-26
EA004521B1 (ru) 2004-06-24
AU3588701A (en) 2001-09-03
AU2001235887B2 (en) 2005-09-22
WO2001063011A1 (en) 2001-08-30

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