ES2135426T3 - Procedimiento para la recuperacion de caprolactama a partir de policaprolactama. - Google Patents

Procedimiento para la recuperacion de caprolactama a partir de policaprolactama.

Info

Publication number
ES2135426T3
ES2135426T3 ES93106681T ES93106681T ES2135426T3 ES 2135426 T3 ES2135426 T3 ES 2135426T3 ES 93106681 T ES93106681 T ES 93106681T ES 93106681 T ES93106681 T ES 93106681T ES 2135426 T3 ES2135426 T3 ES 2135426T3
Authority
ES
Spain
Prior art keywords
caprolactama
policaprolactama
procedure
recovery
polycaprolactam
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
ES93106681T
Other languages
English (en)
Inventor
Hugo Dr Fuchs
Josef Dr Ritz
Claus Ulrich Dr Priester
Gerald Dr Neubauer
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
BASF SE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6458363&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2135426(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BASF SE filed Critical BASF SE
Application granted granted Critical
Publication of ES2135426T3 publication Critical patent/ES2135426T3/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

PROCEDIMIENTO PARA RECUPERAR CAPROLACTAMA DE POLICARPROLACTAMA A TRAVES DE DISOCIAR HIDROLITICAMENTE POLICAPROLACTAMA CON 5 A 50 PARTES EN PESO DE AGUA CON RESPECTO AL PESO DE POLICAPROLACTAMA, A UNA TEMPERATURA ENTRE 200 Y 350 C Y PRESION ELEVADA, PARA OBTENER UNA SOLUCION O SUSPENSION QUE CONTIENE MONOMEROS DE CAPROLACTAMA, OLIGOMEROS DE CAPROLACTAMA Y POLICAPROLACTAMA Y SEPARAR LOS MONOMEROS DE CAPROLACTAMA DE LA SUSPENSION A TRAVES DE OPERACIONES DE DESTILACION O EXTRACCION. LA DISOCIACION HIDROLITICA SE REALIZA EN PRESENCIA DE HIDROXIDO ALCALINO Y CON UN PH ENTRE 5 Y 10.
ES93106681T 1992-05-07 1993-04-24 Procedimiento para la recuperacion de caprolactama a partir de policaprolactama. Expired - Lifetime ES2135426T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4215087A DE4215087A1 (de) 1992-05-07 1992-05-07 Verfahren zur Rückgewinnung von Caprolactam aus Polycaprolactam

Publications (1)

Publication Number Publication Date
ES2135426T3 true ES2135426T3 (es) 1999-11-01

Family

ID=6458363

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93106681T Expired - Lifetime ES2135426T3 (es) 1992-05-07 1993-04-24 Procedimiento para la recuperacion de caprolactama a partir de policaprolactama.

Country Status (6)

Country Link
US (1) US5359062A (es)
EP (1) EP0568882B1 (es)
JP (1) JP3269588B2 (es)
CA (1) CA2095678A1 (es)
DE (2) DE4215087A1 (es)
ES (1) ES2135426T3 (es)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59307118D1 (de) * 1993-01-28 1997-09-18 Polymer Eng Gmbh Verfahren und Vorrichtung zur Herstellung von Polyamid 6 aus Polyamid-Abfällen
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
US5565616A (en) * 1994-05-09 1996-10-15 Board Of Regents, The University Of Texas System Controlled hydrothermal processing
US5536831A (en) * 1994-12-12 1996-07-16 Basf Aktiengesellschaft Obtaining caprolactam by cleavage of molten polycaprolactam
US5455346B1 (en) * 1994-12-12 1999-02-09 Basf Corp Obtaining caprolactam by cleavage of molten polycaprolactam
US5578647A (en) * 1994-12-20 1996-11-26 Board Of Regents, The University Of Texas System Method of producing off-gas having a selected ratio of carbon monoxide to hydrogen
NL1000781C2 (nl) * 1995-07-12 1997-01-14 Dsm Nv Werkwijze voor het winnen van caprolactam uit nylon-6 bevattende afval.
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
EP0826665A1 (en) * 1996-09-02 1998-03-04 Dsm N.V. Recovery of epsilon-caprolactam from aqueous mixtures
TW420662B (en) * 1996-02-17 2001-02-01 Du Pont Recovery of <epsilon>-caprolactam
US5948908A (en) * 1996-03-18 1999-09-07 Alliedsignal Inc. Process for depolymerizing polycaprolactam processing waste to form caprolactam
NL1005942C2 (nl) * 1997-05-01 1998-11-03 Dsm Nv Depolymeriseren van polyamiden.
US5990306A (en) 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
DE10029422A1 (de) * 2000-06-15 2001-12-20 Andreas Hornung Einstufiges Verfahren zur Rückgewinnung von hochreinem epsilon-Caprolactam aus Teppichböden oder Mischfasern
DE10225692A1 (de) * 2002-06-10 2003-12-24 Zimmer Ag Verfahren zur Herstellung von Caprolactam aus Polyamid-haltigen Abfällen
DE10333539A1 (de) * 2003-07-23 2005-02-24 Zimmer Ag Verfahren zur Reinigung von Caprolactam aus Polyamidhaltigen Abfällen mittels UV-Bestrahlung
DE10333538B4 (de) * 2003-07-23 2008-04-10 Lurgi Zimmer Gmbh Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes
CN104017205B (zh) * 2014-06-11 2017-01-18 李兆顺 一种再生尼龙的方法
WO2025119734A1 (en) 2023-12-07 2025-06-12 Basf Se Process for manufacturing cyclohexanone from plastic waste and chemical products based on cyclohexanone manufactured from plastic waste
WO2025119735A1 (en) 2023-12-07 2025-06-12 Basf Se Process for manufacturing cyclohexanone from plastic waste and chemical products based on cyclohexanone manufactured from plastic waste
WO2025172514A1 (en) 2024-02-15 2025-08-21 Basf Se Process for preparing carbon monoxide (co) and molecular hydrogen (h2) from a solid material
TW202600792A (zh) 2024-02-15 2026-01-01 德商巴斯夫歐洲公司 自紡織材料製備一氧化碳 (co) 及分子氫 (h2) 的方法
WO2025176518A1 (en) 2024-02-22 2025-08-28 Basf Se Producing sustainable caprolactam
JPWO2025205744A1 (es) * 2024-03-28 2025-10-02
WO2025256937A1 (en) 2024-06-10 2025-12-18 Basf Se Process for manufacturing monomers from plastic waste
WO2025256928A1 (en) 2024-06-10 2025-12-18 Basf Se Process for manufacturing monomers from plastic waste
WO2025256931A1 (en) 2024-06-10 2025-12-18 Basf Se Process for manufacturing monomers from plastic waste
WO2026027299A1 (en) 2024-07-31 2026-02-05 Basf Se Process for manufacturing c6−c8 aromatic hydrocarbons from end-of-life vehicles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD4811A (es) *
DE4811C (de) * MORGENROTH & CO. in Gotha Schnursteller für Rollvorhänge
DE850614C (de) * 1942-11-12 1952-09-25 Basf Ag Verfahren zur Herstellung von ªŠ-Lactamen
DE851194C (de) * 1944-09-14 1952-10-02 Basf Ag Verfahren zur Herstellung von monomerem ªŠ-Caprolactam
DE851195C (de) * 1944-10-20 1952-10-02 Basf Ag Verfahren zur Wiedergewinnung von ªŠ-Caprolactum aus Polyamiden
DE950726C (de) * 1952-05-16 1956-10-18 Glanzstoff Ag Verfahren zur Rueckgewinnung von Caprolactam aus Polyamiden, die aus Caprolactam bzw. ªŠ-Aminocapronsaeure hergestellt worden sind
US4605762A (en) * 1982-04-23 1986-08-12 Celanese Mexicana S.A. Depolymerization of condensation polymers

Also Published As

Publication number Publication date
DE59309693D1 (de) 1999-08-19
JP3269588B2 (ja) 2002-03-25
US5359062A (en) 1994-10-25
CA2095678A1 (en) 1993-11-08
EP0568882A1 (de) 1993-11-10
JPH0641062A (ja) 1994-02-15
EP0568882B1 (de) 1999-07-14
DE4215087A1 (de) 1993-11-11

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