CA2138024A1 - Simultaneous Production of Dicarboxylic Acids and Diamines by Splitting Polyamides Into Their Monomeric Constituents - Google Patents

Simultaneous Production of Dicarboxylic Acids and Diamines by Splitting Polyamides Into Their Monomeric Constituents

Info

Publication number
CA2138024A1
CA2138024A1 CA 2138024 CA2138024A CA2138024A1 CA 2138024 A1 CA2138024 A1 CA 2138024A1 CA 2138024 CA2138024 CA 2138024 CA 2138024 A CA2138024 A CA 2138024A CA 2138024 A1 CA2138024 A1 CA 2138024A1
Authority
CA
Canada
Prior art keywords
diamines
dicarboxylic acids
polyamides
splitting
polymers
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
CA 2138024
Other languages
French (fr)
Other versions
CA2138024C (en
Inventor
Ursula Seeliger
Wolfgang F. Mueller
Frank Heimann
Guenther Huber
Wolfgang Habermann
Hartwig Voss
Hardo Siegel
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.)
BASF SE
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2138024A1 publication Critical patent/CA2138024A1/en
Application granted granted Critical
Publication of CA2138024C publication Critical patent/CA2138024C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/62—Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/06—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid amides
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
    • C08G69/48—Polymers modified by chemical after-treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Electrochemistry (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyamides (AREA)

Abstract

Disclosed is a method for the simultaneous preparation of dicarbozylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers, by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base in an alcoholic solution and subsequently converting electrochemically the dicarbozylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.
CA002138024A 1992-06-17 1993-06-09 Simultaneous production of dicarboxylic acids and diamines by splitting polyamides into their monomeric constituents Expired - Fee Related CA2138024C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP4219756.2 1992-06-17
DE4219756A DE4219756A1 (en) 1992-06-17 1992-06-17 Process for the simultaneous production of dicarboxylic acids and diamines by splitting polyamides into their monomeric components
PCT/EP1993/001448 WO1993025513A1 (en) 1992-06-17 1993-06-09 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers

Publications (2)

Publication Number Publication Date
CA2138024A1 true CA2138024A1 (en) 1993-12-23
CA2138024C CA2138024C (en) 2000-12-12

Family

ID=6461166

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002138024A Expired - Fee Related CA2138024C (en) 1992-06-17 1993-06-09 Simultaneous production of dicarboxylic acids and diamines by splitting polyamides into their monomeric constituents

Country Status (8)

Country Link
EP (1) EP0646106B1 (en)
JP (1) JPH07507555A (en)
AT (1) ATE172185T1 (en)
CA (1) CA2138024C (en)
DE (2) DE4219756A1 (en)
DK (1) DK0646106T3 (en)
ES (1) ES2123649T3 (en)
WO (1) WO1993025513A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2736637B1 (en) * 1995-07-12 1997-08-22 Rhone Poulenc Fibres & Polymer PROCESS FOR THE CONVERSION OF POLYAMIDES TO NITROGEN-CONTAINING COMPOUNDS
FR2754192B1 (en) * 1996-10-04 1998-12-04 Rhone Poulenc Fibres & Polymer PROCESS FOR THE EXTRACTION OF AMINE COMPOUNDS FROM A LIQUID MEDIUM
DE19703426A1 (en) * 1997-01-30 1998-08-06 Basf Ag Process for the purification of alpha, beta or gamma substituted carboxylic acids
WO2024013254A1 (en) * 2022-07-14 2024-01-18 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Method for producing a monomer from the polymer comprising the monomer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2840606A (en) * 1955-04-15 1958-06-24 Du Pont Nylon hydrolysis
DE1088063B (en) * 1958-10-15 1960-09-01 Basf Ag Process for the recovery of dicarboxylic acids and diamines from polyamides
NL283077A (en) * 1961-09-12
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
DE3926634A1 (en) * 1988-08-11 1990-02-15 Fraunhofer Ges Forschung Multi-cell electrodialysis appts. - esp. for organic acid recovery from salt
DE3926642C2 (en) * 1988-08-11 1998-02-26 Fraunhofer Ges Forschung Process for obtaining an acid from its salt
EP0438369B1 (en) * 1990-01-18 1995-04-12 Monsanto Company Process for the isolation and purification of free iminodiacetic acid, starting from it's salt, by elektrodialysis
US5288378A (en) * 1990-09-28 1994-02-22 Alliedsignal Inc. Guard membranes for use in electrodialysis cells

Also Published As

Publication number Publication date
EP0646106A1 (en) 1995-04-05
EP0646106B1 (en) 1998-10-14
DK0646106T3 (en) 1999-06-23
DE59309064D1 (en) 1998-11-19
ES2123649T3 (en) 1999-01-16
WO1993025513A1 (en) 1993-12-23
CA2138024C (en) 2000-12-12
JPH07507555A (en) 1995-08-24
DE4219756A1 (en) 1993-12-23
ATE172185T1 (en) 1998-10-15

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