DK0646042T3 - Process for electrochemical preparation of dicarboxylic acids - Google Patents

Process for electrochemical preparation of dicarboxylic acids

Info

Publication number
DK0646042T3
DK0646042T3 DK93912921T DK93912921T DK0646042T3 DK 0646042 T3 DK0646042 T3 DK 0646042T3 DK 93912921 T DK93912921 T DK 93912921T DK 93912921 T DK93912921 T DK 93912921T DK 0646042 T3 DK0646042 T3 DK 0646042T3
Authority
DK
Denmark
Prior art keywords
dicarboxylic acids
electrochemical preparation
electrochemical
preparation
dicarboxylic
Prior art date
Application number
DK93912921T
Other languages
Danish (da)
Inventor
Hardo Siegel
Ursula Seeliger
Wolfgang F Mueller
Wolfgang Habermann
Guenther Huber
Frank Heimann
Hartwig Voss
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of DK0646042T3 publication Critical patent/DK0646042T3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/02—Preparation of carboxylic acids or their salts, halides or anhydrides from salts of carboxylic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
    • B01D61/44—Ion-selective electrodialysis
    • B01D61/445—Ion-selective electrodialysis with bipolar membranes; Water splitting

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH2?)n?-COOH, in which n may be an integer from 1 to 8, or mixtures of such dicarboxylic acids, to an electrochemical treatment.
DK93912921T 1992-06-17 1993-06-09 Process for electrochemical preparation of dicarboxylic acids DK0646042T3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4219758A DE4219758A1 (en) 1992-06-17 1992-06-17 Process for the electrochemical production of dicarboxylic acids
PCT/EP1993/001450 WO1993025299A1 (en) 1992-06-17 1993-06-09 Electrochemical method for the preparation of dicarboxylic acids

Publications (1)

Publication Number Publication Date
DK0646042T3 true DK0646042T3 (en) 1999-07-26

Family

ID=6461168

Family Applications (1)

Application Number Title Priority Date Filing Date
DK93912921T DK0646042T3 (en) 1992-06-17 1993-06-09 Process for electrochemical preparation of dicarboxylic acids

Country Status (8)

Country Link
EP (1) EP0646042B1 (en)
JP (1) JPH07507598A (en)
AT (1) ATE173177T1 (en)
CA (1) CA2138153C (en)
DE (2) DE4219758A1 (en)
DK (1) DK0646042T3 (en)
ES (1) ES2123650T3 (en)
WO (1) WO1993025299A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342668A1 (en) * 1993-12-15 1995-06-22 Basf Ag Process for the recovery of carboxylic acids from their salts
US5928485A (en) * 1996-04-08 1999-07-27 E. I. Du Pont De Nemours And Company Process for isolation of dicarboxylic acids and hydroxycarboxylic acids
FR2754192B1 (en) * 1996-10-04 1998-12-04 Rhone Poulenc Fibres & Polymer PROCESS FOR THE EXTRACTION OF AMINE COMPOUNDS FROM A LIQUID MEDIUM
CN1102073C (en) * 1997-06-30 2003-02-26 电合成公司 Electrochemical methods for recovery of ascorbic acid
TW508351B (en) * 1998-07-07 2002-11-01 Du Pont A process for the isolation of aromatic hydroxycarboxylic acids
DE19849922A1 (en) * 1998-10-29 2000-05-04 Degussa Process for the treatment of aqueous solutions containing bases and organic acids
CA2988892C (en) 2015-06-11 2023-02-14 Bl Technologies, Inc. Bipolar electrodialysis methods and systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3964985A (en) * 1974-10-29 1976-06-22 Ionics, Incorporated Electrodialysis apparatus and process for ion modification
US4781809A (en) * 1986-07-21 1988-11-01 Ionics, Incorporated Recovering free organic acids from solutions in which they occur with other organic matter
DE3926642C2 (en) * 1988-08-11 1998-02-26 Fraunhofer Ges Forschung Process for obtaining an acid from its salt
DE3926634A1 (en) * 1988-08-11 1990-02-15 Fraunhofer Ges Forschung Multi-cell electrodialysis appts. - esp. for organic acid recovery from salt
US5288378A (en) * 1990-09-28 1994-02-22 Alliedsignal Inc. Guard membranes for use in electrodialysis cells

Also Published As

Publication number Publication date
WO1993025299A1 (en) 1993-12-23
CA2138153C (en) 2000-05-16
DE4219758A1 (en) 1993-12-23
ES2123650T3 (en) 1999-01-16
EP0646042B1 (en) 1998-11-11
ATE173177T1 (en) 1998-11-15
JPH07507598A (en) 1995-08-24
DE59309129D1 (en) 1998-12-17
CA2138153A1 (en) 1993-12-23
EP0646042A1 (en) 1995-04-05

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