ES2104182T3 - Despolimerizacion de nilon 6,6 y (opcionalmente) nilon 6 para obtener hexametilendiamina (y caprolactama). - Google Patents

Despolimerizacion de nilon 6,6 y (opcionalmente) nilon 6 para obtener hexametilendiamina (y caprolactama).

Info

Publication number
ES2104182T3
ES2104182T3 ES93923278T ES93923278T ES2104182T3 ES 2104182 T3 ES2104182 T3 ES 2104182T3 ES 93923278 T ES93923278 T ES 93923278T ES 93923278 T ES93923278 T ES 93923278T ES 2104182 T3 ES2104182 T3 ES 2104182T3
Authority
ES
Spain
Prior art keywords
nylon
depolymerization
hexamethylendiamine
caprolactam
optionally
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 - Lifetime
Application number
ES93923278T
Other languages
English (en)
Inventor
Edward Francis Moran Jr
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of ES2104182T3 publication Critical patent/ES2104182T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams
    • C07D201/12—Preparation of lactams by depolymerising polyamides
    • 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
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J11/00—Recovery or working-up of waste materials
    • C08J11/04—Recovery or working-up of waste materials of polymers
    • C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
    • C08J11/14—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyamides (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

SE PRESENTA UN PROCESO PARA LA DESPOLIMERIZACION SIMULTANEA DEL NYLON 6 Y DEL 6,6 Y PARA RECUPERAR LOS VALORES MONOMERICOS MEDIANTE UNA DESTILACION CON VAPOR, EN PRESENCIA DE UN CATALIZADOR DE DESPOLIMERIZACION DE NYLON BASICO.
ES93923278T 1992-10-19 1993-10-13 Despolimerizacion de nilon 6,6 y (opcionalmente) nilon 6 para obtener hexametilendiamina (y caprolactama). Expired - Lifetime ES2104182T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/963,224 US5266694A (en) 1992-10-19 1992-10-19 Nylon component reclamation

Publications (1)

Publication Number Publication Date
ES2104182T3 true ES2104182T3 (es) 1997-10-01

Family

ID=25506940

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93923278T Expired - Lifetime ES2104182T3 (es) 1992-10-19 1993-10-13 Despolimerizacion de nilon 6,6 y (opcionalmente) nilon 6 para obtener hexametilendiamina (y caprolactama).

Country Status (8)

Country Link
US (1) US5266694A (es)
EP (1) EP0664787B1 (es)
JP (1) JP3285582B2 (es)
AU (1) AU672062B2 (es)
CA (1) CA2146630C (es)
DE (1) DE69311734T2 (es)
ES (1) ES2104182T3 (es)
WO (1) WO1994008942A1 (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
US5536831A (en) * 1994-12-12 1996-07-16 Basf Aktiengesellschaft Obtaining caprolactam by cleavage of molten polycaprolactam
KR100316687B1 (ko) * 1994-12-27 2002-02-19 전 원 중 유기불순물을함유한저순도카프로락탐의정제방법
FR2736637B1 (fr) * 1995-07-12 1997-08-22 Rhone Poulenc Fibres & Polymer Procede de transformation de polyamides en composes comprenant de l'azote
US5656757A (en) * 1995-08-10 1997-08-12 Alliedsignal Inc. Monomer recovery from multi-component materials
US5681952A (en) * 1995-12-08 1997-10-28 Alliedsignal Inc. Process for depolymerizing nylon-containing waste to form caprolactam
NL1005942C2 (nl) * 1997-05-01 1998-11-03 Dsm Nv Depolymeriseren van polyamiden.
NL1006575C2 (nl) * 1997-07-14 1999-01-15 Dsm Nv Depolymeriseren van polyamiden.
DE60121948T2 (de) 2000-06-08 2007-03-15 E.I. Du Pont De Nemours And Co., Wilmington Auf lösungsmittel basierende rückgewinnung und wiederverwertung eines polyamidmaterials
DE10029422A1 (de) * 2000-06-15 2001-12-20 Andreas Hornung Einstufiges Verfahren zur Rückgewinnung von hochreinem epsilon-Caprolactam aus Teppichböden oder Mischfasern
BRPI1011227A8 (pt) 2009-05-07 2019-02-26 Genomatica Inc microorganismos e métodos para a biossíntese de adipato, hexametilenodiamina e ácido 6-aminocapróico.
US8080506B2 (en) * 2009-07-14 2011-12-20 MSI Technology LLC. Reactive purge compound for polymer purging
CA3044099A1 (en) 2018-05-23 2019-11-23 2569924 Ontario Inc. Compositions and methods for removing contaminants from plastics processing equipment
US12090420B2 (en) 2018-09-18 2024-09-17 Inv Nylon Chemicals Americas, Llc Systems and methods for recovering amines and their derivatives from aqueous mixtures
US20240228737A1 (en) * 2021-05-14 2024-07-11 Research Triangle Institute Depolymerization of polymers with ammonia and amines
US20260042730A1 (en) * 2022-08-19 2026-02-12 Northwestern University Catalytic chemical recycling of polyamide-based plastics
EP4669694A1 (en) * 2023-02-22 2025-12-31 Basf Se DEPOLYMERIZATION PROCESS FOR POLYAMIDE PREPARED FROM CAPROLACTAM
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518416A (es) *
NL260459A (es) * 1960-01-25 1964-04-27
NL283077A (es) 1961-09-12
US3317519A (en) * 1965-05-21 1967-05-02 Allied Chem Simultaneous depolymerization of polycaproamide and polyester with recovery of caprolactam
JPS53132585A (en) * 1977-04-21 1978-11-18 Toyobo Co Ltd Recovery of epsilon-caprolactam
SE451464B (sv) * 1981-12-01 1987-10-12 Lumalampan Ab Forfarande och anordning for atervinning av kvicksilver ur avfall innehallande organiskt material
US4605762A (en) * 1982-04-23 1986-08-12 Celanese Mexicana S.A. Depolymerization of condensation polymers
DE3502105A1 (de) * 1985-01-23 1986-07-24 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von schiff'schen basen
CN87101541A (zh) * 1987-04-21 1988-11-02 营口县博洛铺助剂厂 一种生产己二酸、己二胺盐酸盐技术
JPH07131541A (ja) * 1993-11-02 1995-05-19 Oki Electric Ind Co Ltd ボイススイッチ

Also Published As

Publication number Publication date
DE69311734D1 (de) 1997-07-24
AU5321894A (en) 1994-05-09
DE69311734T2 (de) 1998-01-15
AU672062B2 (en) 1996-09-19
US5266694A (en) 1993-11-30
CA2146630C (en) 2003-05-27
EP0664787A1 (en) 1995-08-02
EP0664787B1 (en) 1997-06-18
CA2146630A1 (en) 1994-04-28
JP3285582B2 (ja) 2002-05-27
JPH08502296A (ja) 1996-03-12
WO1994008942A1 (en) 1994-04-28

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