WO2012096993A3 - Control of ph kinetics in an electrolytic cell having acid-intolerant alkali-conductive membrane - Google Patents

Control of ph kinetics in an electrolytic cell having acid-intolerant alkali-conductive membrane Download PDF

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Publication number
WO2012096993A3
WO2012096993A3 PCT/US2012/020822 US2012020822W WO2012096993A3 WO 2012096993 A3 WO2012096993 A3 WO 2012096993A3 US 2012020822 W US2012020822 W US 2012020822W WO 2012096993 A3 WO2012096993 A3 WO 2012096993A3
Authority
WO
WIPO (PCT)
Prior art keywords
alkali
intolerant
acid
cell
electrolytic cell
Prior art date
Application number
PCT/US2012/020822
Other languages
French (fr)
Other versions
WO2012096993A2 (en
Inventor
Sai Bhavaraju
Justin Pendleton
Original Assignee
Ceramatec, Inc.
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 Ceramatec, Inc. filed Critical Ceramatec, Inc.
Publication of WO2012096993A2 publication Critical patent/WO2012096993A2/en
Publication of WO2012096993A3 publication Critical patent/WO2012096993A3/en

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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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • 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
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms

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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)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

Systems and methods for recovering chlorine gas or an alkali metal from an electrolytic cell (10) having an acid-intolerant, alkali-ion-selective membrane (15) are disclosed. In some cases, the cell (10) has an anolyte compartment (20) and a catholyte compartment (25) with an acid-intolerant, alkali-ion selective membrane (15) separating the two. While a cathode (45) is disposed within a catholyte solution (40) in the catholyte compartment (25), a chlorine-gas-evolving anode (35) is typically disposed within an aqueous alkali-chloride solution in the anolyte compartment (20). As current passes between the anode (35) and cathode (45), chlorine ions in the anolyte solution (30) can be oxidized to form chlorine gas. In some cases, the cell (10) is configured so the chlorine gas is rapidly removed from the cell (10) to inhibit a chemical reaction between the chlorine gas and the anolyte solution (30).
PCT/US2012/020822 2011-01-10 2012-01-10 Control of ph kinetics in an electrolytic cell having acid-intolerant alkali-conductive membrane WO2012096993A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161431356P 2011-01-10 2011-01-10
US61/431,356 2011-01-10

Publications (2)

Publication Number Publication Date
WO2012096993A2 WO2012096993A2 (en) 2012-07-19
WO2012096993A3 true WO2012096993A3 (en) 2012-10-26

Family

ID=46454421

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/020822 WO2012096993A2 (en) 2011-01-10 2012-01-10 Control of ph kinetics in an electrolytic cell having acid-intolerant alkali-conductive membrane

Country Status (2)

Country Link
US (1) US20120175267A1 (en)
WO (1) WO2012096993A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10355305B2 (en) 2012-01-16 2019-07-16 Enlighten Innovations Inc. Alkali metal intercalation material as an electrode in an electrolytic cell
SI2867388T1 (en) * 2012-06-29 2019-08-30 Australian Biorefining Pty Ltd Process and apparatus for generating or recovering hydrochloric acid from metal salt solutions
US9163319B2 (en) 2012-11-02 2015-10-20 Tennant Company Three electrode electrolytic cell and method for making hypochlorous acid
WO2014138110A1 (en) * 2013-03-04 2014-09-12 Ceramatec, Inc. Alkali metal intercalation material as an electrode in an electrolytic cell
WO2014138272A1 (en) * 2013-03-06 2014-09-12 Ceramatec, Inc. Production of valuable chemicals by electroreduction of carbon dioxide in a nasicon cell
US9222182B2 (en) 2013-06-14 2015-12-29 Simple Science Limited Electrochemical activation device
AU2018231091B2 (en) * 2017-03-06 2023-11-16 Evoqua Water Technologies Llc Implementation of feedback control for improved electrochemical system design
CN107338452A (en) * 2017-08-16 2017-11-10 江苏唯达水处理技术股份有限公司 A kind of film covered cathode hypochlorite generator
CN110983364A (en) * 2019-12-20 2020-04-10 湖南七纬科技有限公司 High-hydrophilicity diaphragm for electrolyzed water and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984295A (en) * 1974-03-30 1976-10-05 National Research Institute For Metals Method for galvanically winning or refining copper
US4110191A (en) * 1977-08-16 1978-08-29 Olin Corporation Separator-electrode unit for electrolytic cells
US20030024879A1 (en) * 2001-04-24 2003-02-06 Carson Roger W. Mediated electrochemical oxidation of biological waste materials
US20040124094A1 (en) * 2002-07-05 2004-07-01 Akzo Nobel N.V. Process for producing alkali metal chlorate
US20070138020A1 (en) * 2005-12-20 2007-06-21 Shekar Balagopal Electrolytic process to produce sodium hypochlorite using sodium ion conductive ceramic membranes
US20090107850A1 (en) * 2007-10-24 2009-04-30 James Fang Process for preparing sodium hydroxide, chlorine and hydrogen from aqueous salt solution using solar energy

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4340452A (en) * 1979-08-03 1982-07-20 Oronzio deNora Elettrochimici S.p.A. Novel electrolysis cell
US8329008B2 (en) * 2007-04-23 2012-12-11 Mitsui Chemicals, Inc. Gas generating device and carbon electrode for gas generation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984295A (en) * 1974-03-30 1976-10-05 National Research Institute For Metals Method for galvanically winning or refining copper
US4110191A (en) * 1977-08-16 1978-08-29 Olin Corporation Separator-electrode unit for electrolytic cells
US20030024879A1 (en) * 2001-04-24 2003-02-06 Carson Roger W. Mediated electrochemical oxidation of biological waste materials
US20040124094A1 (en) * 2002-07-05 2004-07-01 Akzo Nobel N.V. Process for producing alkali metal chlorate
US20070138020A1 (en) * 2005-12-20 2007-06-21 Shekar Balagopal Electrolytic process to produce sodium hypochlorite using sodium ion conductive ceramic membranes
US20090107850A1 (en) * 2007-10-24 2009-04-30 James Fang Process for preparing sodium hydroxide, chlorine and hydrogen from aqueous salt solution using solar energy

Also Published As

Publication number Publication date
US20120175267A1 (en) 2012-07-12
WO2012096993A2 (en) 2012-07-19

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