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 (19)

* 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
US5455346B1 (en) * 1994-12-12 1999-02-09 Basf Corp Obtaining caprolactam by cleavage of molten polycaprolactam
US5536831A (en) * 1994-12-12 1996-07-16 Basf Aktiengesellschaft 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
DE10333538B4 (de) * 2003-07-23 2008-04-10 Lurgi Zimmer Gmbh Verfahren zur Behandlung Polyamid-haltiger Abfälle mit der Wiederaufbereitung des Depolymerisationsrückstandes
DE10333539A1 (de) * 2003-07-23 2005-02-24 Zimmer Ag Verfahren zur Reinigung von Caprolactam aus Polyamidhaltigen Abfällen mittels UV-Bestrahlung
CN104017205B (zh) * 2014-06-11 2017-01-18 李兆顺 一种再生尼龙的方法

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

Similar Documents

Publication Publication Date Title
ES2135426T3 (es) Procedimiento para la recuperacion de caprolactama a partir de policaprolactama.
ES2096842T5 (es) Sistema de recuperacion de refrigerante.
FR2584228B1 (fr) Dispositif de refroidissement de secours a surete intrinseque d&#39;un reacteur nucleaire a eau sous pression.
FR2656456B1 (fr) Embout inferieur d&#39;un assemblage combustible d&#39;un reacteur nucleaire refroidi par de l&#39;eau legere.
FR2663409B1 (fr) Dispositif de chauffage normal direct d&#39;un carter de compresseur, notamment pour compresseurs hermetiques basse pression.
FR2735661B1 (fr) Procede et dispositif de securite pour motocycliste
MX9305579A (es) Recuperacion de epsilon-caprolactam a partir de alfombra de nylon 6.
CO4130335A1 (es) Nuevos productos farmaceuticos que son piranoquinolinas sus- tituidas con fenilos o heteroarilos
ITMI912025A1 (it) Procedimento per la preparazione di demetilepipodofillotossina- beta-d-glucosidi.
ES2034261T3 (es) Acoplamiento ostomico con una junta de anillo torico integral.
IT8421966A0 (it) Sistema per lubrificare l&#39;avviatore di una turbomacchina.
FR2584227B1 (fr) Dispositif de condensation de vapeur d&#39;eau sous pression et son application au refroidissement d&#39;un reacteur nucleaire apres un incident.
ES2170095T3 (es) Un metodo y una disposicion de precintado.
GB1318459A (en) Process for purifying lactams
PL273614A1 (en) Method of obtaining novel 2-/2&#39;-hydroxy-3&#39;-carboxyloxy-2&#39;&#39;-carboxybutoxy-e-ethane)acetamidomethyl-5&#39;- methylphenyl/-2h-benzotriazole-1,2,3
MX9204540A (es) Procedimiento y dispositivo de aromatizacion de un polvo de cafe soluble.
ES2188891T3 (es) Recuperacion de epsilon-caprolactama de mezclas acuosas.
ES2073482T3 (es) Derivados de imidazoquinolona.
IT8719974A0 (it) Dispositivo per l&#39;adduzione dosata di lega leggera liquida nel cilindro di pressione.
ES2000114A4 (es) Procedimiento de purificacion de la carnitina.
ES2163251T3 (es) Procedimiento para la separacion de 6-aminocapronitrilo de mezclas que contienen 6-aminocapronitrilo y una imina.
BE889856A (nl) Nokkenasloze motor
IT217525Z2 (it) Dispositivo di aggancio/sgancio rapido di un regolatore per gas al bocchettone di una bombola.
ES2045592T3 (es) Procedimiento para la separacion de catalizadores contenidos en poli-esterpolioles.
FR2592627B1 (fr) Dispositif de liberation de gaz sous pression actionne par eau

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 568882

Country of ref document: ES