EP0146771A2 - Procédé de production d'alcoolates alcalins - Google Patents

Procédé de production d'alcoolates alcalins Download PDF

Info

Publication number
EP0146771A2
EP0146771A2 EP84113888A EP84113888A EP0146771A2 EP 0146771 A2 EP0146771 A2 EP 0146771A2 EP 84113888 A EP84113888 A EP 84113888A EP 84113888 A EP84113888 A EP 84113888A EP 0146771 A2 EP0146771 A2 EP 0146771A2
Authority
EP
European Patent Office
Prior art keywords
alkali metal
alcohol
cathode compartment
solution
compartment
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
EP84113888A
Other languages
German (de)
English (en)
Other versions
EP0146771B1 (fr
EP0146771A3 (en
Inventor
Carl H. Prof. Hamann
Jürgen Schneider
Peter Dr. Schmittinger
Rudolf Dr. Stephan
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.)
Huels AG
Original Assignee
Huels AG
Dynamit Nobel AG
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 Huels AG, Dynamit Nobel AG filed Critical Huels AG
Publication of EP0146771A2 publication Critical patent/EP0146771A2/fr
Publication of EP0146771A3 publication Critical patent/EP0146771A3/de
Application granted granted Critical
Publication of EP0146771B1 publication Critical patent/EP0146771B1/fr
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
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/20—Processes
    • C25B3/25—Reduction

Definitions

  • the invention relates to a method for producing alkali alcoholates of the type described in the preamble of claim 1.
  • the solvent on the anode side can be the alcohol itself. Because of the low conductivities that can be achieved in the solvents in question, the electrode spacing should be minimized as far as possible.
  • stirring the catholyte and the anolyte is advantageous to ensure adequate mass transfer speeds.
  • the two-part test electrolysis cell used for carrying out the tests for Examples 1 to 3 has riser pipes for gas outlet from both electrolysis chambers and devices for loading and emptying the anode and cathode compartments.
  • the membrane is clamped between the flanges of the two cell halves or the like by means of a screw. pressed together and sealed by a 0-ring lying in a groove.
  • Bare platinum electrodes serve as electrodes.
  • the experiments shown in the examples were carried out with current densities of about 1.7 kA.m-2 with galvanostatic switching.
  • the platinum electrodes are arranged at a distance of 2 to 4 mm on both sides of the exchange membrane.
  • the anolyte consisted of a 1.4 N CH 3 COONa, 1.2 N CH 3 COOH methanolic solution.
  • the anode reaction is based on the following relationship anodically discharge the acetate ion and thus release Na + .
  • the present method can be applied analogously to the production of alcoholates of other metals if the restrictions resulting from the solubility ratios are observed and appropriate exchange membranes are used.

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)
EP84113888A 1983-12-21 1984-11-16 Procédé de production d'alcoolates alcalins Expired EP0146771B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3346131 1983-12-21
DE3346131A DE3346131C2 (de) 1983-12-21 1983-12-21 Verfahren zur Herstellung von Alkalialkoholaten

Publications (3)

Publication Number Publication Date
EP0146771A2 true EP0146771A2 (fr) 1985-07-03
EP0146771A3 EP0146771A3 (en) 1986-12-10
EP0146771B1 EP0146771B1 (fr) 1989-05-03

Family

ID=6217517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84113888A Expired EP0146771B1 (fr) 1983-12-21 1984-11-16 Procédé de production d'alcoolates alcalins

Country Status (2)

Country Link
EP (1) EP0146771B1 (fr)
DE (2) DE3346131C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596485A1 (fr) * 1992-11-05 1994-05-11 Salzgitter Anlagenbau Zweigniederlassung der Preussag Anlagenbau GmbH Procédé électrochimique pour la préparation d'alcoolats des métaux alcalin ainsi que son utilisation pour régénérer le catalysateur de la synthèse de formiate de méthyl
US5425856A (en) * 1994-04-26 1995-06-20 Occidental Chemical Corporation Method of making alkali metal alcoholates
EP1312700A2 (fr) * 2001-11-02 2003-05-21 Degussa AG Procédé pour la production d'alcoolats de metaux alcalins
US8075758B2 (en) 2003-12-11 2011-12-13 Ceramatec, Inc. Electrolytic method to make alkali alcoholates using ion conducting alkali electrolyte/separator
US8268159B2 (en) 2005-12-20 2012-09-18 Ceramatec, Inc. Electrolytic process to produce sodium hypochlorite using sodium ion conductive ceramic membranes
US8506790B2 (en) 2003-12-11 2013-08-13 Shekar Balagopal Electrolytic cell for making alkali alcoholates using ceramic ion conducting solid membranes
CN112226782A (zh) * 2020-09-15 2021-01-15 安徽金邦医药化工有限公司 一种固体甲醇钠的精制工艺

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4233191C2 (de) * 1992-01-16 1995-06-29 Huels Chemische Werke Ag Verfahren zur Herstellung von Alkoholaten
US7824536B2 (en) 2003-12-11 2010-11-02 Ceramatec, Inc. Electrolytic method to make alkali alcoholates using ceramic ion conducting solid membranes
DE10360758A1 (de) * 2003-12-23 2005-07-28 Degussa Ag Elektrochemische Herstellung von Alkalialkoholaten mit Hilfe einer keramischen Festelektrolytmembran
US20240052107A1 (en) 2022-08-12 2024-02-15 Evonik Operations Gmbh Production of alkoxysiloxanes
CN117586504A (zh) 2022-08-12 2024-02-23 赢创运营有限公司 由废硅酮制备烷氧基硅氧烷的方法
CN117586505A (zh) 2022-08-12 2024-02-23 赢创运营有限公司 烷氧基硅氧烷的制备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438963A (en) * 1942-10-17 1948-04-06 Mathieson Alkali Works Inc Manufacture of alkali metal alcoholates
US4250000A (en) * 1979-03-26 1981-02-10 Stauffer Chemical Company Electrochemical process for metal alkoxides

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438963A (en) * 1942-10-17 1948-04-06 Mathieson Alkali Works Inc Manufacture of alkali metal alcoholates
US4250000A (en) * 1979-03-26 1981-02-10 Stauffer Chemical Company Electrochemical process for metal alkoxides

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0596485A1 (fr) * 1992-11-05 1994-05-11 Salzgitter Anlagenbau Zweigniederlassung der Preussag Anlagenbau GmbH Procédé électrochimique pour la préparation d'alcoolats des métaux alcalin ainsi que son utilisation pour régénérer le catalysateur de la synthèse de formiate de méthyl
US5425856A (en) * 1994-04-26 1995-06-20 Occidental Chemical Corporation Method of making alkali metal alcoholates
EP1312700A2 (fr) * 2001-11-02 2003-05-21 Degussa AG Procédé pour la production d'alcoolats de metaux alcalins
EP1312700A3 (fr) * 2001-11-02 2003-05-28 Degussa AG Procédé pour la production d'alcoolats de metaux alcalins
US8075758B2 (en) 2003-12-11 2011-12-13 Ceramatec, Inc. Electrolytic method to make alkali alcoholates using ion conducting alkali electrolyte/separator
US8506790B2 (en) 2003-12-11 2013-08-13 Shekar Balagopal Electrolytic cell for making alkali alcoholates using ceramic ion conducting solid membranes
US8268159B2 (en) 2005-12-20 2012-09-18 Ceramatec, Inc. Electrolytic process to produce sodium hypochlorite using sodium ion conductive ceramic membranes
CN112226782A (zh) * 2020-09-15 2021-01-15 安徽金邦医药化工有限公司 一种固体甲醇钠的精制工艺
CN112226782B (zh) * 2020-09-15 2021-06-29 安徽金邦医药化工有限公司 一种固体甲醇钠的精制工艺

Also Published As

Publication number Publication date
DE3478038D1 (en) 1989-06-08
DE3346131C2 (de) 1986-07-10
EP0146771B1 (fr) 1989-05-03
DE3346131A1 (de) 1985-06-27
EP0146771A3 (en) 1986-12-10

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