FR2389684A1 - - Google Patents

Info

Publication number
FR2389684A1
FR2389684A1 FR7813157A FR7813157A FR2389684A1 FR 2389684 A1 FR2389684 A1 FR 2389684A1 FR 7813157 A FR7813157 A FR 7813157A FR 7813157 A FR7813157 A FR 7813157A FR 2389684 A1 FR2389684 A1 FR 2389684A1
Authority
FR
France
Prior art keywords
concentration
sodium hydroxide
aqueous solution
electrolysis
aqueous
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
FR7813157A
Other languages
English (en)
Other versions
FR2389684B1 (fr
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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
Priority claimed from JP52050685A external-priority patent/JPS5813632B2/ja
Priority claimed from JP14226977A external-priority patent/JPS5475497A/ja
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of FR2389684A1 publication Critical patent/FR2389684A1/fr
Application granted granted Critical
Publication of FR2389684B1 publication Critical patent/FR2389684B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2218—Synthetic macromolecular compounds
    • C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
    • C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C01D3/145—Purification by solid ion-exchangers or solid chelating agents
    • 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
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)

Abstract

a. Procédé de préparation d'hydroxyde de sodium par électrolyse d'une solution aqueuse de chlorure de sodium en utilisant une membrane fluorée échangeuse de cations présentant une capacité d'échange d'ions de 0,8 à 2,0 méq/g de polymère sec et présentant des groupements en acide carboxylique en tant que groupements fonctionnels et en maintenant une concentration de la solution aqueuse d'hydroxyde de sodium dans le compartiment cathodique dans l'intervalle de 20 à 45 % en poids. b. II se caractérise en ce que la concentration en calcium dans la solution aqueuse de NaCI est maintenue à moins de 0,08 mg/l pendant l'électrolyse. c. Industrie de la soude
FR7813157A 1977-05-04 1978-05-03 Expired FR2389684B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP52050685A JPS5813632B2 (ja) 1977-05-04 1977-05-04 電解用塩化アルカリ水溶液の精製方法
JP14226977A JPS5475497A (en) 1977-11-29 1977-11-29 Electrolyzing method for aqueous solution of sodium chloride

Publications (2)

Publication Number Publication Date
FR2389684A1 true FR2389684A1 (fr) 1978-12-01
FR2389684B1 FR2389684B1 (fr) 1985-09-06

Family

ID=26391141

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813157A Expired FR2389684B1 (fr) 1977-05-04 1978-05-03

Country Status (8)

Country Link
US (1) US4202743A (fr)
CA (1) CA1141696A (fr)
DE (1) DE2819527A1 (fr)
FR (1) FR2389684B1 (fr)
GB (1) GB1572322A (fr)
IT (1) IT1096202B (fr)
NL (1) NL7804322A (fr)
SE (1) SE7805137L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424335A1 (fr) * 1978-04-27 1979-11-23 Ppg Industries Inc Procede pour l'elimination d'impuretes presentes a raison de quelques parties par milliard dans des saumures de chlorures de metaux alcalins

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551351B2 (fr) * 1974-03-07 1980-01-12
JPS5565372A (en) * 1978-11-10 1980-05-16 Asahi Glass Co Ltd Electrolyzing method of aqueous potassium chloride solution
US4308030A (en) * 1981-01-12 1981-12-29 Olin Corporation Method of determination of alkaline earth metal ions in concentrated alkali metal chloride brines
US4417961A (en) * 1981-03-30 1983-11-29 The Dow Chemical Company Membrane cell brine feed
US4381230A (en) * 1981-06-22 1983-04-26 The Dow Chemical Company Operation and regeneration of permselective ion-exchange membranes in brine electrolysis cells
JPS59162285A (ja) * 1983-03-04 1984-09-13 Asahi Chem Ind Co Ltd イオン交換膜法による食塩の電解方法
US4560452A (en) * 1983-03-07 1985-12-24 The Dow Chemical Company Unitary central cell element for depolarized, filter press electrolysis cells and process using said element
US4568434A (en) * 1983-03-07 1986-02-04 The Dow Chemical Company Unitary central cell element for filter press electrolysis cell structure employing a zero gap configuration and process utilizing said cell
US4673479A (en) * 1983-03-07 1987-06-16 The Dow Chemical Company Fabricated electrochemical cell
US4488946A (en) * 1983-03-07 1984-12-18 The Dow Chemical Company Unitary central cell element for filter press electrolysis cell structure and use thereof in the electrolysis of sodium chloride
JPS60501364A (ja) * 1983-03-30 1985-08-22 イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− ヨウ化物不純物を含むブラインの改良電解法
US4445987A (en) * 1983-03-30 1984-05-01 Oronzio De Nora S.A. Electrolytic purification and reconcentration of wash and rinse caustic solutions recovered from the regeneration of ion exchange resins
US4618403A (en) * 1983-10-24 1986-10-21 Olin Corporation Method of stabilizing metal-silica complexes in alkali metal halide brines
JPS61166991A (ja) * 1985-01-18 1986-07-28 Asahi Glass Co Ltd 食塩電解方法
US4900408A (en) * 1988-02-01 1990-02-13 E. I. Du Pont De Nemours & Co. Membrane electrolytic process for producing concentrated caustic
DE69128680T2 (de) * 1990-10-05 1998-08-20 Asahi Chemical Ind Verfahren zur Elektrolyse eines Alkalimetall-Chlorids mittels einer Kationenaustauschermembran
US5494647A (en) * 1993-10-04 1996-02-27 The United States Of America As Represented By The United States Department Of Energy Use of Chelex-100 for selectively removing Y-90 from its parent Sr-90
US6375825B1 (en) 1999-10-28 2002-04-23 Chemical Products Corporation Process for the production of alkaline earth hydroxide
US20080003507A1 (en) * 2006-06-30 2008-01-03 Chenniah Nanjundiah Formulation Of Electrolyte Solutions For Electrochemical Chlorine Dioxide Generators

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2172259A1 (fr) * 1972-02-16 1973-09-28 Diamond Shamrock Corp
DE2638791A1 (de) * 1975-08-29 1977-03-03 Asahi Glass Co Ltd Fluorierte kationenaustauschermembran und verwendung derselben zur elektrolyse von alkalimetallhalogeniden
FR2328056A1 (fr) * 1975-10-17 1977-05-13 Asahi Glass Co Ltd Procede de preparation d'hydroxydes de metal alcalin

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS564495B2 (fr) * 1971-11-05 1981-01-30
US4040919A (en) * 1974-10-29 1977-08-09 Hooker Chemicals & Plastics Corporation Voltage reduction of membrane cell for the electrolysis of brine
JPS5186100A (ja) * 1975-01-25 1976-07-28 Asahi Chemical Ind Ensuinodenkaihoho
US4073706A (en) * 1976-02-06 1978-02-14 Diamond Shamrock Corporation Brine treatment for trace metal removal
JPS52145397A (en) * 1976-03-31 1977-12-03 Asahi Chem Ind Co Ltd Electrolysis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2172259A1 (fr) * 1972-02-16 1973-09-28 Diamond Shamrock Corp
DE2638791A1 (de) * 1975-08-29 1977-03-03 Asahi Glass Co Ltd Fluorierte kationenaustauschermembran und verwendung derselben zur elektrolyse von alkalimetallhalogeniden
FR2328056A1 (fr) * 1975-10-17 1977-05-13 Asahi Glass Co Ltd Procede de preparation d'hydroxydes de metal alcalin

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CA1976 *
CA1977 *
EXBK/70 *
EXBK/72 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2424335A1 (fr) * 1978-04-27 1979-11-23 Ppg Industries Inc Procede pour l'elimination d'impuretes presentes a raison de quelques parties par milliard dans des saumures de chlorures de metaux alcalins

Also Published As

Publication number Publication date
NL7804322A (nl) 1978-11-07
CA1141696A (fr) 1983-02-22
FR2389684B1 (fr) 1985-09-06
GB1572322A (en) 1980-07-30
IT7823014A0 (it) 1978-05-04
DE2819527A1 (de) 1978-11-09
DE2819527C2 (fr) 1988-02-04
SE7805137L (sv) 1978-11-05
US4202743A (en) 1980-05-13
IT1096202B (it) 1985-08-26

Similar Documents

Publication Publication Date Title
FR2389684A1 (fr)
US4065366B1 (fr)
US4599152A (en) Pure amino acid chelates
FR2387910A1 (fr) Purification d'une solution aqueuse de chlorure de sodium
FR2474535B1 (fr) Procede pour l'electrolyse d'une solution aqueuse de chlorure de sodium comprenant en combinaison un processus a membrane et un processus a membrane echangeuse de cations
ES466797A1 (es) Procedimiento para la produccion de hipoclorito de sodio
FR2263312B1 (fr)
IT1027732B (it) Memerane per scambio di cationi dotate di migliore permeoseletti vita
DE3066002D1 (en) Fluorinated polymer cation exchange membrane for electrolysis, process for its preparation and process for electrolysing an aqueous solution of an alkali metal chloride
ATE30298T1 (de) Elektrodialytischer mehrkammer-wasserzersetzer mit zwei abteilungen und anwendungsmethode zur saeuerung von wasserloeslichen salzen.
FR2437420B1 (fr)
FR2424335A1 (fr) Procede pour l'elimination d'impuretes presentes a raison de quelques parties par milliard dans des saumures de chlorures de metaux alcalins
SE9101977L (sv) Foerfarande foer framstaellning av klordioxid
GB2123812B (en) Fluorinated carboxylic acids and derivatives their production and their use to produce fluorinated acid fluorides
FR2443517A1 (fr) Procede de preparation de l'acide glyoxalique par oxydation electrolytique
FR2369354A1 (fr) Procede electrolytique pour l'obtention d'acide iodhydrique
FR2447981A1 (fr) Procede pour l'electrolyse de l'acide chlorhydrique
ES8102599A1 (es) Procedimiento electroquimico de regenerar banos de acido cromico usados y perfeccionamientos en las celulas de elec- trodialisis
SE7901249L (sv) Elektrolyssystem
FR2376865A1 (fr) Procede pour separer le mannose du glucose
FR2405310A1 (fr) Electrolyse du chlorure de sodium dans une cellule a membrane echangeuse d'ion
JPS5620173A (en) Preparation of chlorine water
JPS5558383A (en) Stopping method for electrolytic cell of cation exchange membrane method
NO984306L (no) FremgangsmÕte for elektrolysering av en saltoppl°sning
ES2000869A6 (es) Un procedimiento para producir un acido aminocarboxilico

Legal Events

Date Code Title Description
ST Notification of lapse