DK0646106T3 - Fremgangsmåde til samtidig fremstilling af dicarboxylsyrer og diaminer ved spaltning af polyamider i deres monomerbestandde - Google Patents
Fremgangsmåde til samtidig fremstilling af dicarboxylsyrer og diaminer ved spaltning af polyamider i deres monomerbestanddeInfo
- Publication number
- DK0646106T3 DK0646106T3 DK93912919T DK93912919T DK0646106T3 DK 0646106 T3 DK0646106 T3 DK 0646106T3 DK 93912919 T DK93912919 T DK 93912919T DK 93912919 T DK93912919 T DK 93912919T DK 0646106 T3 DK0646106 T3 DK 0646106T3
- Authority
- DK
- Denmark
- Prior art keywords
- dicarboxylic acids
- diamines
- polyamides
- stocks
- cleavage
- Prior art date
Links
Classifications
-
- 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)
- Water Supply & Treatment (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Urology & Nephrology (AREA)
- Oil, Petroleum & Natural Gas (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)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4219756A DE4219756A1 (de) | 1992-06-17 | 1992-06-17 | Verfahren zur gleichzeitigen Herstellung von Dicarbonsäuren und Diaminen durch Spaltung von Polyamiden in ihre monomeren Bestandteile |
| PCT/EP1993/001448 WO1993025513A1 (de) | 1992-06-17 | 1993-06-09 | Verfahren zur gleichzeitigen herstellung von dicarbonsäuren und diaminen durch spaltung von polyamiden in ihre monomeren bestandteile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DK0646106T3 true DK0646106T3 (da) | 1999-06-23 |
Family
ID=6461166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK93912919T DK0646106T3 (da) | 1992-06-17 | 1993-06-09 | Fremgangsmåde til samtidig fremstilling af dicarboxylsyrer og diaminer ved spaltning af polyamider i deres monomerbestandde |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0646106B1 (da) |
| JP (1) | JPH07507555A (da) |
| AT (1) | ATE172185T1 (da) |
| CA (1) | CA2138024C (da) |
| DE (2) | DE4219756A1 (da) |
| DK (1) | DK0646106T3 (da) |
| ES (1) | ES2123649T3 (da) |
| WO (1) | WO1993025513A1 (da) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2736637B1 (fr) * | 1995-07-12 | 1997-08-22 | Rhone Poulenc Fibres & Polymer | Procede de transformation de polyamides en composes comprenant de l'azote |
| FR2754192B1 (fr) * | 1996-10-04 | 1998-12-04 | Rhone Poulenc Fibres & Polymer | Procede d'extraction de composes amines d'un milieu liquide |
| DE19703426A1 (de) * | 1997-01-30 | 1998-08-06 | Basf Ag | Verfahren zur Reinigung von alpha-, beta- oder gamma-substituierten Carbonsäuren |
| EP4555129A1 (de) * | 2022-07-14 | 2025-05-21 | Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen | Verfahren zum erzeugen eines monomers aus dem das monomer umfassenden polymer |
| WO2025051086A1 (en) | 2023-09-04 | 2025-03-13 | Basf Se | Recycling method and recycled products |
| EP4606787A1 (en) | 2024-02-21 | 2025-08-27 | Covestro Deutschland AG | Method for efficient purification of hexamethylene diamine obtained from a recycling process |
| EP4606786A1 (en) | 2024-02-21 | 2025-08-27 | Covestro Deutschland AG | Extraction of 1,6-hexamethylenediamine using combinations of solvents |
| WO2025233334A1 (en) | 2024-05-07 | 2025-11-13 | Basf Se | Recovery of glass fibers from solvolysis mixture obtained by neutral hydrolysis of polyhexamethylene adipamide |
| WO2025233329A1 (en) | 2024-05-07 | 2025-11-13 | Basf Se | Recovery of glass fibers from solvolysis mixture obtained by alkaline hydrolysis of poly-amide (pa66) engineering plastics |
| WO2025233341A1 (en) | 2024-05-07 | 2025-11-13 | Basf Se | Separation of plastic solvolysis mixtures from filler components |
| TW202607089A (zh) | 2024-05-07 | 2026-02-16 | 德商巴斯夫歐洲公司 | 自pa66分離玻璃纖維、己二酸及己二胺之方法 |
| WO2025257042A1 (en) | 2024-06-11 | 2025-12-18 | Basf Se | Recycling method |
| WO2026068520A1 (en) | 2024-09-25 | 2026-04-02 | Basf Se | Recycling of waste streams comprising polyamide and an organosilicon compound |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2840606A (en) * | 1955-04-15 | 1958-06-24 | Du Pont | Nylon hydrolysis |
| DE1088063B (de) * | 1958-10-15 | 1960-09-01 | Basf Ag | Verfahren zur Rueckgewinnung von Dicarbonsaeuren und Diaminen aus Polyamiden |
| NL283077A (da) * | 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 |
| DE3926642C2 (de) * | 1988-08-11 | 1998-02-26 | Fraunhofer Ges Forschung | Verfahren zur Gewinnung einer Säure aus ihrem Salz |
| DE3926634A1 (de) * | 1988-08-11 | 1990-02-15 | Fraunhofer Ges Forschung | Vorrichtung zur gewinnung einer saeure aus ihrem salz |
| DE69108749T2 (de) * | 1990-01-18 | 1995-11-09 | Monsanto Co | Verfahren zur Isolierung von freier Iminodiessigsäure aus ihren Salzen durch Elektrodialyse. |
| US5288378A (en) * | 1990-09-28 | 1994-02-22 | Alliedsignal Inc. | Guard membranes for use in electrodialysis cells |
-
1992
- 1992-06-17 DE DE4219756A patent/DE4219756A1/de not_active Withdrawn
-
1993
- 1993-06-09 CA CA002138024A patent/CA2138024C/en not_active Expired - Fee Related
- 1993-06-09 ES ES93912919T patent/ES2123649T3/es not_active Expired - Lifetime
- 1993-06-09 DE DE59309064T patent/DE59309064D1/de not_active Expired - Lifetime
- 1993-06-09 JP JP6501108A patent/JPH07507555A/ja active Pending
- 1993-06-09 EP EP93912919A patent/EP0646106B1/de not_active Expired - Lifetime
- 1993-06-09 WO PCT/EP1993/001448 patent/WO1993025513A1/de not_active Ceased
- 1993-06-09 AT AT93912919T patent/ATE172185T1/de not_active IP Right Cessation
- 1993-06-09 DK DK93912919T patent/DK0646106T3/da active
Also Published As
| Publication number | Publication date |
|---|---|
| ES2123649T3 (es) | 1999-01-16 |
| CA2138024A1 (en) | 1993-12-23 |
| JPH07507555A (ja) | 1995-08-24 |
| CA2138024C (en) | 2000-12-12 |
| ATE172185T1 (de) | 1998-10-15 |
| WO1993025513A1 (de) | 1993-12-23 |
| DE4219756A1 (de) | 1993-12-23 |
| DE59309064D1 (de) | 1998-11-19 |
| EP0646106A1 (de) | 1995-04-05 |
| EP0646106B1 (de) | 1998-10-14 |
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