ES366782A1 - Process for the electrolytic manufacture of sulphoxides - Google Patents

Process for the electrolytic manufacture of sulphoxides

Info

Publication number
ES366782A1
ES366782A1 ES366782A ES366782A ES366782A1 ES 366782 A1 ES366782 A1 ES 366782A1 ES 366782 A ES366782 A ES 366782A ES 366782 A ES366782 A ES 366782A ES 366782 A1 ES366782 A1 ES 366782A1
Authority
ES
Spain
Prior art keywords
electrolyte
sulphide
sulphoxide
dimethyl
organic
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
Application number
ES366782A
Other languages
Spanish (es)
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine SA
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 Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Publication of ES366782A1 publication Critical patent/ES366782A1/en
Expired 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • 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
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/23—Oxidation
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

An organic sulphoxide is produced by the anodic oxidation of the corresponding organic sulphide in a liquid medium comprising an organic solvent containing water and an electrolyte, wherein the solvent used dissolves a sufficient quantity of the electrolyte and gives a dielectric constant sufficient to produce the necessary ionic dissociation of the electrolyte, the solvent and the anion of the electrolyte having an oxidation potential which is higher than that of the sulphide, and the liquid medium is electrolysed between insoluble electrodes, the potential of the anode being maintained at a value exceeding the oxidation potential of the sulphide but below those of the solvent, anion of the electrolyte and of the sulphoxide to be produced. The electrolysis is preferably performed in a cell having one or more Pt or C anodes and one or more stainless steel or Pt cathodes, not separated by diaphragms or a cell having Pt or C anodes and C cathodes with at least one diaphragm. The anode potential is usually +0À4 to 1À7 volts and the organic solvent is suitably a dialkyl formamide, an aliphatic nitrile and/or a nitroalkane or, advantageously, the same organic sulphoxide as that which is to be prepared. The electrolyte may be an acid, e.g. sulphuric, nitric, perchloric, benzenesulphonic or toluenesulphonic acid or a salt, e.g. a halide, halogenate, perhalogenate, sulphate, nitrate or sulphonate of an alkali or alkaline earth metal. Amongst the examples, dimethyl sulphoxide is prepared by electrolysing (1) dimethyl sulphide, water, sodium p-toluenesulphonate and dimethyl formamide or (2) dimethyl sulphide, water, sulphuric acid and dimethyl sulphoxide.
ES366782A 1968-05-06 1969-05-05 Process for the electrolytic manufacture of sulphoxides Expired ES366782A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR150750 1968-05-06

Publications (1)

Publication Number Publication Date
ES366782A1 true ES366782A1 (en) 1971-03-16

Family

ID=8649868

Family Applications (1)

Application Number Title Priority Date Filing Date
ES366782A Expired ES366782A1 (en) 1968-05-06 1969-05-05 Process for the electrolytic manufacture of sulphoxides

Country Status (10)

Country Link
AT (1) AT296948B (en)
BE (1) BE732510A (en)
CH (1) CH511820A (en)
DE (1) DE1922721A1 (en)
ES (1) ES366782A1 (en)
FR (1) FR1582507A (en)
GB (1) GB1274304A (en)
LU (1) LU58573A1 (en)
NL (1) NL6906799A (en)
NO (1) NO129854B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE23577T1 (en) * 1983-06-16 1986-11-15 Rhone Poulenc Sante PROCESS FOR THE ELECTROCHEMICAL MANUFACTURE OF SULFOXIDES OF THIOFORMAMIDE DERIVATIVES USED AS MEDICINAL PRODUCTS.
IN170927B (en) * 1988-03-07 1992-06-13 Pennwalt Corp

Also Published As

Publication number Publication date
LU58573A1 (en) 1970-01-13
NO129854B (en) 1974-06-04
NL6906799A (en) 1969-11-10
DE1922721A1 (en) 1969-11-20
FR1582507A (en) 1969-10-03
CH511820A (en) 1971-08-31
AT296948B (en) 1972-03-10
BE732510A (en) 1969-11-05
GB1274304A (en) 1972-05-17

Similar Documents

Publication Publication Date Title
GB1369576A (en) Electrolytic processes
ES466797A1 (en) Process for producing sodium hypochlorite
ES268960A1 (en) Electrolytic process for production of chlorine and caustic
ES475786A1 (en) Generation of halogens by electrolysis of hydrogen halides in a cell having catalytic electrodes bonded to a solid polymer electrolyte
GB1364939A (en) Process for the electrolytic preparation of glycolxylic acid
ES419772A1 (en) Process for electrolyzing aqueous sodium or potassium ion solutions
ES366782A1 (en) Process for the electrolytic manufacture of sulphoxides
GB1533641A (en) Absorption of chlorine gas
GB845511A (en) Improvements relating to the production of metal hydroxides
US2813825A (en) Method of producing perchlorates
SU310538A1 (en)
ATE47161T1 (en) PROCESSES FOR THE ELECTROLYSIS OF AQUEOUS COPPER CHLORIDE SOLUTIONS.
GB1051597A (en)
SU323942A1 (en) Electrochemical method of obtaining sodium perborate
ES394806A1 (en) Electrolysis of magnesium chloride
Blum et al. The definition of polarization, overvoltage and decomposition potential
GB1069601A (en) Method of electrolytic extraction of metals
GB1204912A (en) Adiponitrile production by electrolytic hydrodimerization
SU380106A1 (en)
US1789523A (en) Method of electrolytically depositing chromium
SU645986A1 (en) Electrochemical method of obtaining basic nickel carbonate
GB1206797A (en) Electrochemical oxidation of phenol
Matsuda et al. The Electrolytic Formation of Persulphate. Part V. With Alternating Current Superimposed on Direct Current
SU59273A1 (en) Method of electrolytic deposition of manganese
SU132624A1 (en) Method for electrochemical production of aluminum oxychlorides