KR860002595A - 용액중에서 화합물을 전기화학적으로 산화시키는 방법 및 그의 장치 - Google Patents

용액중에서 화합물을 전기화학적으로 산화시키는 방법 및 그의 장치 Download PDF

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KR860002595A
KR860002595A KR1019850006681A KR850006681A KR860002595A KR 860002595 A KR860002595 A KR 860002595A KR 1019850006681 A KR1019850006681 A KR 1019850006681A KR 850006681 A KR850006681 A KR 850006681A KR 860002595 A KR860002595 A KR 860002595A
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1) 쟝바쇼(외
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필리쁘 뒤브뤼끄
롱-쁠랑 스빼샬리떼 쉬미끄
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    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00Electrolytic production of inorganic compounds or non-metals
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00Operating or servicing cells
    • C25B15/02Process control or regulation
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00Operating or servicing cells
    • C25B15/08Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B3/00Electrolytic production of organic compounds
    • C25B3/01Products
    • C25B3/07Oxygen containing compounds
    • CCHEMISTRY; METALLURGY
    • C25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70Assemblies comprising two or more cells

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  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
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Abstract

내용 없음

Description

용액중에서 화합물을 전기화학적으로 산화시키는 방법 및 그의 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도 및 제2도는 전해유닛의 개략도이다.

Claims (11)

  1. 용액을 첫번째 양이온 막으로 분리된 첫번째 양극부와 음극부로 구성된 전해조의 첫번째 양극부에서 처리하고, 첫번째 양극부로부터의 용액을, 두번째 양이온 막으로 음극부에서 분리된 전해조의 두번째 양극부에서 처리한 다음, 두번째 양극부로부터 나온 용액을 회수하여 목적물을 형성하고, 전해질을 상기 음극부에 순환시키고, 이 부분의 전해질 일부를 첫번째 양극부로 들어가는 용액과 결합하고, 나머지를 상기 음극부로 재순환시킴을 특징으로 하는 용액중에서 화합물을 전기화학적으로 산화시키는 방법.
  2. 첫번째 루우프 회로에서, 용액을 첫번째 양이온 막으로 분리된 첫번째 양극부와 음극부로 구성된 전해조의 첫번째 양극부에서 처리하고, 처리된 최초의 용액 일부를 양극부로 재순환시키고, 두번째 루우프회로에서, 두번째 양이온 막으로 음극부와 분리된 상기 전해조의 두번째 양극부에서 남아있는 용액의 두번째 부분을 처리하고, 이와같이 처리된 용액의 일부를 두번째 양극부로 재순환시키고, 남아있는 용액을 분리하여 목적물을 형성하고, 전해질을 음극부로 순환시키고, 이 부분에서 나온 전해질의 일부를 첫번째 루우프 회로에서 순환되는 용액과 결합하고, 나머지 부분을 상기 음극부로 재순환시킴을 특징으로 하는 용액중에서 화합물을 전기화학적으로 산화시키는 방법.
  3. 제1 또는 2항에 있어서, 상이한 양극 전류밀도를 첫번째 및 두번째 양극부에 사용하고, 첫번째 부분이 훨씬 양호함을 특징으로 하는 방법.
  4. 제1,2 또는 3항에 있어서, 첫번째 양극부 또는 첫번째 루우프 회로에서 처리된 용액중의 화합물이 Ce3+임을 특징으로 하는 방법.
  5. 제4항에 있어서, 질산염세륨(Ⅲ)의 용액을 사용함을 특징으로 하는 방법.
  6. 제5항에 있어서, 질산염 암모니아를 함유하는 세륨용액을 사용하고, 이 질산염 암모니아 용액을 음극부로 순환시켜, 용액을 두번째 양극부로 통과시킨 다음 세리암모니아 질산염 요액을 얻음을 특징으로 하는 방법.
  7. 제4항에 있어서, 황산염세륨(Ⅲ)용액을 처리하여, 이 용액을 두번째 양극부로 통과시킨 다음 황산염세륨(Ⅳ)용액을 얻음을 특징으로 하는 방법.
  8. 제7항에 있어서, 첫번째 양극부에서 나온 용액이 두번째 양극부로 들어가기 전에 황산세륨(Ⅲ)의 함량이 증가됨을 특징으로 하는 방법.
  9. 전해조(1)가 두개의 양극부(2,3), 상기 두개의 양극부 사이에 위치하는 하나의 음극부(4), 음극부와 양극부 각각을 분리하는 두개의 양이온막(5,6), 첫번째 양극부(2)에 공급하는 양극액의 순환을 위한 첫번째 루우프(7), 첫번째 루우프(7)에 양극액을 공급하는 장치(13), 두번째 양극부(3)에 공급하는 양극액의 순환을 위한 두번째 루우프(8), 첫번째 및 두번째 루우프를 연결하는 첫번째 바이패스(20), 음극부(4)에 공급하는 음극액의 순환을 위한 세번째 루우프(9), 및 첫번째 루우프(7)에 양극액을 공급하기 위하여 상기의 세번째 루우프(9)를 장치(13)에 연결하는 두번째 바이패스(21)로 구성됨을 특징으로 하는 전해유닛.
  10. 제9항에 있어서, 음극액 순환을 위한 루우프가 음극액 저장기(30)을 포함함을 특징으로 하는 전해유닛.
  11. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850006681A 1984-09-13 1985-09-12 용액내 화합물의 전해 산화방법 및 전해 산화를 실행하는 전해 유닛 KR900002492B1 (ko)

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FR8413641A FR2570087B1 (fr) 1984-09-13 1984-09-13 Procede d'oxydation electrolytique et ensemble d'electrolyse pour sa mise en oeuvre
FR84-13641 1984-09-13

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KR860002595A true KR860002595A (ko) 1986-04-28
KR900002492B1 KR900002492B1 (ko) 1990-04-16

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US (2) US4657644A (ko)
EP (1) EP0178958B1 (ko)
JP (1) JPS6187886A (ko)
KR (1) KR900002492B1 (ko)
AT (1) ATE36010T1 (ko)
AU (1) AU576263B2 (ko)
CA (1) CA1254170A (ko)
DE (1) DE3563986D1 (ko)
FR (1) FR2570087B1 (ko)
NO (1) NO853542L (ko)
ZA (1) ZA856991B (ko)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2580273B1 (fr) * 1985-03-25 1990-01-05 Rhone Poulenc Spec Chim Procede de separation du cerium et de terres rares
FR2596380B1 (fr) 1986-03-26 1991-09-27 Rhone Poulenc Chimie Nouveau compose de cerium iv et son procede de preparation
JPS63114988A (ja) * 1986-10-31 1988-05-19 Nippon Shokubai Kagaku Kogyo Co Ltd 第2セリウム硫酸溶液の製造法
JPS63223190A (ja) * 1987-03-13 1988-09-16 Nippon Shokubai Kagaku Kogyo Co Ltd 硝酸第2セリウム溶液の製造法
JPS63223189A (ja) * 1987-03-13 1988-09-16 Nippon Shokubai Kagaku Kogyo Co Ltd 硝酸第2セリウム溶液の製造法
FR2617153B1 (fr) * 1987-06-26 1991-04-05 Rhone Poulenc Chimie Procede d'obtention d'un oxyde cerique et oxyde cerique a nouvelles caracteristiques morphologiques
ATE67469T1 (de) * 1987-06-29 1991-10-15 Rhone Poulenc Chimie Verfahren zur gewinnung eines ceriumoxids.
FR2628408B1 (fr) * 1988-03-09 1991-02-22 Rhone Poulenc Chimie Procede d'oxydation electrochimique du cerium 3+ en cerium 4+, en emulsion
US5074974A (en) * 1990-06-08 1991-12-24 Reilly Industries, Inc. Electrochemical synthesis and simultaneous purification process
US5705049A (en) * 1992-04-07 1998-01-06 Hydro-Quebec Indirect cerium mediated electrosynthesis
FR2757425B3 (fr) * 1996-12-23 1999-03-19 Rhodia Chimie Sa Procede de traitement de gaz d'echappement de moteurs a combustion interne fonctionnant avec un carburant contenant du soufre
WO2001062993A1 (en) * 2000-02-22 2001-08-30 Lakefield Oretest Pty Ltd Process and apparatus for recovery of cyanide and metals
US6787258B2 (en) 2002-03-05 2004-09-07 Vladimir Prerad Hydrogen based energy storage apparatus and method
FR2852591B1 (fr) 2003-03-18 2006-06-16 Rhodia Elect & Catalysis Composition a base d'oxyde de zirconium et d'oxyde de cerium a temperature maximale de reductibilite reduite, son procede de preparation et son utilisation comme catalyseur
FR2859470B1 (fr) 2003-09-04 2006-02-17 Rhodia Elect & Catalysis Composition a base d'oxyde de cerium et d'oxyde de zirconium a reductibilite et surface elevees, procede de preparation et utilisation comme catalyseur
FR2875149B1 (fr) 2004-09-15 2006-12-15 Rhodia Chimie Sa Procede de fabrication d'un filtre a particules catalyse et filtre ainsi obtenu
US7964527B2 (en) 2006-02-17 2011-06-21 Rhodia Operations Catalytic compositions comprising the oxides of zirconium, cerium, yttrium, lanthanum and other rare earths
FR2898887B1 (fr) 2006-03-21 2008-05-02 Rhodia Recherches & Tech Composition a base d'oxyde de zirconium et d'oxyde de cerium a reductibilite elevee et a surface specifique stable procede de preparation et utilisation dans le traitement des gaz d'echappement
WO2008010108A2 (en) * 2006-06-09 2008-01-24 Kuzo Holding Inc. Dual voltage electrolysis apparatus and method of using same
WO2008010107A2 (en) * 2006-06-09 2008-01-24 Kuzo Holding Inc. Dual voltage, multi-composition electrode assembly for an electrolysis apparatus and method of using same
FR2917646B1 (fr) 2007-06-20 2011-06-03 Anan Kasei Co Ltd Oxyde mixte a haute surface specifique de cerium et d'autre terre rare, procede de preparation et utilisation en catalyse
US9005422B2 (en) * 2007-08-31 2015-04-14 Energy & Environmental Research Center Foundation Electrochemical process for the preparation of nitrogen fertilizers
US8152988B2 (en) 2007-08-31 2012-04-10 Energy & Enviromental Research Center Foundation Electrochemical process for the preparation of nitrogen fertilizers
FR2955098B1 (fr) 2010-01-11 2014-09-05 Rhodia Operations Composition a base d'oxydes de zirconium, de cerium et d'une autre terre rare a temperature maximale de reductibilite reduite, procede de preparation et utilisation dans le domaine de la catalyse.
FR2959735B1 (fr) 2010-05-06 2012-06-22 Rhodia Operations Composition a base d'oxydes de zirconium, de cerium d'au moins une autre terre rare, a porosite specifique, procede de preparation et utilisation en catalyse.
US10404998B2 (en) 2011-02-22 2019-09-03 Sun Patent Trust Moving picture coding method, moving picture coding apparatus, moving picture decoding method, and moving picture decoding apparatus
FR2976574B1 (fr) 2011-06-17 2013-05-31 Rhodia Operations Composition a base d'oxydes de cerium, de zirconium et d'une autre terre rare a reductibilite elevee, procede de preparation et utilisation dans le domaine de la catalyse.
FR2977581B1 (fr) 2011-07-04 2013-08-02 Rhodia Operations Composition consistant en un oxyde mixte de cerium et de zirconium a reductibilite elevee, procede de preparation et utilisation dans le domaine de la catalyse
FR2977582B1 (fr) 2011-07-04 2014-07-11 Rhodia Operations Composition consistant en un oxyde mixte de zirconium et de cerium a reductibilite elevee, procede de preparation et utilisation dans le domaine de la catalyse
US8343646B1 (en) 2012-02-23 2013-01-01 Zinc Air Incorporated Screen arrangement for an energy storage system
WO2014121813A1 (en) 2013-02-05 2014-08-14 Rhodia Operations Precipitated and calcinated composition based on zirconium oxide and cerium oxide
DE102013211935A1 (de) * 2013-06-24 2014-12-24 Siemens Aktiengesellschaft Vorrichtung zur Trennung von verschiedenartigen Seltenerdelementionen in flüssiger Lösung
FR3050450A1 (fr) 2016-04-26 2017-10-27 Rhodia Operations Oxyde mixte a base de cerium et de zirconium
KR102340507B1 (ko) 2016-05-18 2021-12-21 로디아 오퍼레이션스 산화세륨 입자 및 이의 제조방법
KR20190089945A (ko) 2016-12-02 2019-07-31 로디아 오퍼레이션스 산화세륨의 현탁액
WO2018115436A1 (fr) 2016-12-23 2018-06-28 Rhodia Operations Oxyde mixte résistant au vieillissement à base de cérium, de zirconium, d'aluminium et de lanthane pour convertisseur catalytique automobile
CN110621397B (zh) * 2017-05-11 2024-06-11 罗地亚经营管理公司 具有增强的耐受性和nox储存容量的混合氧化物
JP7326166B2 (ja) 2017-06-15 2023-08-15 ローディア オペレーションズ セリウム系粒子
WO2019042910A1 (en) 2017-08-29 2019-03-07 Rhodia Operations MIXED OXIDE WITH ENHANCED REDOX PROPERTIES
WO2019042911A1 (en) 2017-08-29 2019-03-07 Rhodia Operations USE OF A MIXED OXIDE TO ABSORB NOX
WO2019043346A1 (fr) 2017-09-01 2019-03-07 Rhodia Operations Oxyde mixte a base de cerium et de zirconium
FR3077567A1 (fr) 2018-02-02 2019-08-09 Rhodia Operations Procede de preparation d'un oxyde a base de cerium et/ou de zirconium
FR3077566A1 (fr) 2018-02-02 2019-08-09 Rhodia Operations Procede de preparation d'un oxyde a base de cerium et/ou de zirconium
WO2020038222A1 (en) 2018-08-24 2020-02-27 Rhodia Operations A microporous aluminotitanosilicate crystalline zeolite, method of preparation and applications thereof
US10703998B2 (en) 2018-10-22 2020-07-07 Saudi Arabian Oil Company Catalytic demetallization and gas phase oxidative desulfurization of residual oil
JP2022506353A (ja) 2018-11-02 2022-01-17 ローディア オペレーションズ イットリウムと、セリウムと、有機化合物とに基づく組成物、それらのストップオフ用途
US20220055017A1 (en) 2018-12-28 2022-02-24 Rhodia Operations Cerium oxide particles and method for production thereof
US20220118427A1 (en) 2018-12-28 2022-04-21 Rhodia Operations Use of cerium oxide for the preparation of a lean nox trap catalytic composition and a method of treatment of an exhaust gas using the composition
US20220184584A1 (en) 2019-03-03 2022-06-16 Rhodia Operations Mixed oxide with high pore volume
WO2021105169A1 (en) 2019-11-26 2021-06-03 Rhodia Operations Liquid dispersion and powder of cerium based core-shell particles, process for producing the same and uses thereof in polishing
US20230041600A1 (en) 2019-11-26 2023-02-09 Rhodia Operations Cerium based particles, process for producing the same and uses thereof in polishing
WO2022128761A1 (en) 2020-12-17 2022-06-23 Agc Glass Europe Reduced maximum reducibility temperature zirconium oxide and cerium oxide based composition, method for the production and use thereof as a catalyst
WO2022128770A1 (en) 2020-12-17 2022-06-23 Agc Glass Europe Zirconium oxide and cerium oxide based composition with improved ability for regeneration, method for the production and use thereof as a catalyst
WO2022128754A1 (en) 2020-12-17 2022-06-23 Agc Glass Europe Reduced maximum reducibility temperature zirconium oxide and cerium oxide based composition, method for the production and use thereof as a catalyst
IL305292A (en) 2021-03-12 2023-10-01 Rhodia Operations Cerium oxide particles, a process for their preparation and their use in chemical mechanical polishing
CN116981752A (zh) 2021-03-12 2023-10-31 罗地亚经营管理公司 氧化铈粒子、其制造方法及其在化学机械研磨中的用途
KR20240008895A (ko) 2021-05-17 2024-01-19 로디아 오퍼레이션스 세륨계 코어-셸 입자의 액체 분산물 및 분말, 이를 생성하기 위한 공정 및 폴리싱에서의 이의 용도

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2796395A (en) * 1953-06-05 1957-06-18 Dorr Oliver Inc Electrolytic desalting of saline solutions
US2815320A (en) * 1953-10-23 1957-12-03 Kollsman Paul Method of and apparatus for treating ionic fluids by dialysis
GB879181A (en) * 1958-02-03 1961-10-04 Permutit Co Ltd Improvements relating to the removal of dissolved solids from liquids
US3208926A (en) * 1960-08-25 1965-09-28 Leeds & Northrup Co Coulometric systems
US3192143A (en) * 1962-06-28 1965-06-29 Shell Oil Co Electrodialytic demineralization of water
US3413203A (en) * 1965-08-18 1968-11-26 Celanese Corp Electrolytic oxidation of cerium
GB1196631A (en) * 1966-05-31 1970-07-01 Monsanto Co Electrolytic Diaphragm Cell
US3486992A (en) * 1967-02-15 1969-12-30 Cincinnati Milling Machine Co Process for electrolytic oxidation of thallium or cerium salts
US3703508A (en) * 1968-04-08 1972-11-21 Sybron Corp Per(halo-oxygen) acid oxidation,purification and recovery process and apparatus therefor
FR2314900A1 (fr) * 1975-06-18 1977-01-14 Niso Ste Civile Etud Rech Procede et installation de traitement des solutions de decapage de metaux
JPS5620540A (en) * 1979-07-30 1981-02-26 Otsuka Chem Co Ltd Preparation of anisaldehyde
US4292160A (en) * 1979-08-20 1981-09-29 Kennecott Corporation Apparatus for electrochemical removal of heavy metals such as chromium from dilute wastewater streams using flow-through porous electrodes
US4312721A (en) * 1980-05-15 1982-01-26 B.C. Research Council Electrolytic oxidation process
US4313804A (en) * 1980-10-21 1982-02-02 B.C. Reasearch Council Process for preparing ceric sulphate
CS218296B1 (en) * 1980-10-30 1983-02-25 Antonin Stehlik Method of continuous regeneration of the iron trichloride solution
GB2133806B (en) * 1983-01-20 1986-06-04 Electricity Council Regenerating solutions for etching copper
GB8308187D0 (en) * 1983-03-24 1983-05-05 Ici Plc Electrolytic cell

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FR2570087A1 (fr) 1986-03-14
US4657644A (en) 1987-04-14
DE3563986D1 (en) 1988-09-01
US4749462A (en) 1988-06-07
ZA856991B (en) 1986-05-28
FR2570087B1 (fr) 1986-11-21
EP0178958B1 (fr) 1988-07-27
AU576263B2 (en) 1988-08-18
CA1254170A (fr) 1989-05-16
ATE36010T1 (de) 1988-08-15
JPS6187886A (ja) 1986-05-06
NO853542L (no) 1986-03-14
EP0178958A1 (fr) 1986-04-23
AU4737285A (en) 1986-03-20
KR900002492B1 (ko) 1990-04-16
JPS6342709B2 (ko) 1988-08-25

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