DE69529584T2 - Wiedergewinnung von Caprolactam aus Teppichabfällen - Google Patents

Wiedergewinnung von Caprolactam aus Teppichabfällen

Info

Publication number
DE69529584T2
DE69529584T2 DE69529584T DE69529584T DE69529584T2 DE 69529584 T2 DE69529584 T2 DE 69529584T2 DE 69529584 T DE69529584 T DE 69529584T DE 69529584 T DE69529584 T DE 69529584T DE 69529584 T2 DE69529584 T2 DE 69529584T2
Authority
DE
Germany
Prior art keywords
distillate
monomer
caprolactam
aqueous portion
subjecting
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
DE69529584T
Other languages
English (en)
Other versions
DE69529584D1 (de
Inventor
Stylianos Sifniades
Alan Bart Levy
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.)
Shaw Industries Group Inc
Original Assignee
Honeywell International Inc
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 Honeywell International Inc filed Critical Honeywell International Inc
Application granted granted Critical
Publication of DE69529584D1 publication Critical patent/DE69529584D1/de
Publication of DE69529584T2 publication Critical patent/DE69529584T2/de
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
DE69529584T 1994-04-08 1995-03-27 Wiedergewinnung von Caprolactam aus Teppichabfällen Expired - Lifetime DE69529584T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/225,273 US5457197A (en) 1994-04-08 1994-04-08 Monomer recovery from multi-component materials

Publications (2)

Publication Number Publication Date
DE69529584D1 DE69529584D1 (de) 2003-03-20
DE69529584T2 true DE69529584T2 (de) 2003-11-20

Family

ID=22844255

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69529584T Expired - Lifetime DE69529584T2 (de) 1994-04-08 1995-03-27 Wiedergewinnung von Caprolactam aus Teppichabfällen

Country Status (6)

Country Link
US (1) US5457197A (de)
EP (1) EP0676394B1 (de)
AT (1) ATE232514T1 (de)
DE (1) DE69529584T2 (de)
DK (1) DK0676394T3 (de)
ES (1) ES2191037T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059299A1 (de) 2007-05-16 2008-11-20 Entex Rust & Mitschke Gmbh Vorrichtung zur Verarbeitung von zu entgasenden Produkten

Families Citing this family (33)

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US5495015A (en) * 1994-12-12 1996-02-27 Basf Aktiengesellschaft Process for producing caprolactam through hydrolytic cleavage of molten polycaprolactam
WO1997000846A1 (en) * 1995-06-22 1997-01-09 E.I. Du Pont De Nemours And Company Nitric acid hydrolysis of polyamides
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
JP3659717B2 (ja) 1995-11-30 2005-06-15 株式会社神戸製鋼所 化学プラント内廃棄物の分解方法および装置
US5681952A (en) * 1995-12-08 1997-10-28 Alliedsignal Inc. Process for depolymerizing nylon-containing waste to form caprolactam
US5948908A (en) * 1996-03-18 1999-09-07 Alliedsignal Inc. Process for depolymerizing polycaprolactam processing waste to form caprolactam
CA2214189C (en) * 1997-01-10 2001-05-29 Basf Corporation Novel bicomponent fibers having core domain formed of regenerated polymeric materials and methods of making the same
US6462230B1 (en) 1997-01-16 2002-10-08 Kabushiki Kaisha Kobe Seiko Sho Method of and apparatus for decomposing wastes
US5889142A (en) * 1997-04-21 1999-03-30 Alliedsignal Inc. Selective polyamide recovery from multi-component materials
NL1005942C2 (nl) * 1997-05-01 1998-11-03 Dsm Nv Depolymeriseren van polyamiden.
BR9810634A (pt) * 1997-06-27 2001-11-27 Procter & Gamble Composições detergente lìquidas estruturadas,contendo ácido graxo, não-aquosas
US5990306A (en) * 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
US6211275B1 (en) 1998-11-10 2001-04-03 New Jersey Institute Of Technology Wood substitute composition and process for producing same
JP2000159925A (ja) 1998-11-30 2000-06-13 Takeda Chem Ind Ltd ポリウレタン樹脂の分解回収設備
EP1104753A1 (de) * 1999-12-03 2001-06-06 Dsm N.V. Verfahren zur Wiedergewinnung der Monomerbestandteile von Nylon aus Teppich
US7659320B2 (en) * 2000-11-01 2010-02-09 Interface, Inc. Method for extracting nylon from waste materials
US7550516B2 (en) * 2001-05-10 2009-06-23 Interface, Inc. Method for extracting nylon from waste materials
US20030187311A1 (en) * 2002-03-29 2003-10-02 Barvincak James P. Method of separating and converting hydrocarbon composites and polymer materials
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
US8110131B1 (en) 2006-12-06 2012-02-07 Dell Orco Sergio Carpet reclamation system
US8113448B2 (en) * 2009-04-22 2012-02-14 Keating Joseph Z Methods of recycling carpet components and carpet components formed thereform
US20110040027A1 (en) * 2009-04-22 2011-02-17 Keating Joseph Z Methods of recycling carpet components and products formed therefrom
US20100273001A1 (en) * 2009-04-22 2010-10-28 Keating Joseph Z Method of Recycling Carpet Components and Carpet Components formed Therefrom
US8360348B2 (en) 2010-08-12 2013-01-29 Frank Levy Method and apparatus for recycling carpet
US8969638B2 (en) 2010-11-02 2015-03-03 Fina Technology, Inc. Depolymerizatin of plastic materials
US8870104B2 (en) 2011-01-13 2014-10-28 Frank Levy Method for separating carpet fibers
US8864057B2 (en) 2011-11-04 2014-10-21 Shaw Industries Group, Inc. Processes for recycling carpet and products of such processes
US11364661B2 (en) 2016-04-20 2022-06-21 Broadview Group International, Llc Processes and structures for recycling carpet and products of such processes
WO2023074433A1 (ja) * 2021-10-29 2023-05-04 東レ株式会社 繊維状充填材およびε－カプロラクタムの回収方法、ならびにポリアミド６の製造方法
WO2023074438A1 (ja) * 2021-10-29 2023-05-04 東レ株式会社 熱可塑性樹脂の製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742093A (en) * 1970-04-08 1973-06-26 Welding Engineers Method of separating an insoluble liquid from polymer composition
US3917507A (en) * 1971-02-22 1975-11-04 Welding Engineers Countercurrent combined liquid and vapor stripping in screw devolatilizer
US3939153A (en) * 1974-08-09 1976-02-17 Hillyard Chemical Company Process for producing caprolactam
DE2440243C2 (de) * 1974-08-22 1985-05-02 Dr. Illing GmbH & Co KG Makromolekulare Chemie, 6114 Groß-Umstadt Verfahren zur Herstellung von Caprolactam aus Polycaprolactam
DE2442387C3 (de) * 1974-09-04 1981-09-10 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen hydrolytischen Aufspaltung von hydrolysierbaren Kunststoffabfällen
US4107160A (en) * 1977-08-24 1978-08-15 Zimmer Aktiengesellschaft Continuous process for the recovery of caprolactam
US4136251A (en) * 1977-09-12 1979-01-23 E. I. Du Pont De Nemours And Company Extrusion process for recovery of polymers from their dispersions in liquids
US4311642A (en) * 1980-09-17 1982-01-19 Allied Corporation Recovery of caprolactam from nylon 6 oligomers
US4605762A (en) * 1982-04-23 1986-08-12 Celanese Mexicana S.A. Depolymerization of condensation polymers
US5216149A (en) * 1991-06-07 1993-06-01 Midwest Research Institute Controlled catalytic and thermal sequential pyrolysis and hydrolysis of mixed polymer waste streams to sequentially recover monomers or other high value products
US5977193A (en) * 1991-06-21 1999-11-02 Basf Corporation Reclaiming epsilon-caprolactam from nylon 6 carpet
US5169870A (en) * 1991-06-21 1992-12-08 Basf Corporation Reclaiming ε-caprolactam from nylon 6 carpet
DE4215087A1 (de) * 1992-05-07 1993-11-11 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Polycaprolactam
US5241066A (en) * 1992-06-25 1993-08-31 Basf Corporation Method of recovering caprolactam from mixed waste
US5266694A (en) * 1992-10-19 1993-11-30 E. I. Du Pont De Nemours And Company Nylon component reclamation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007059299A1 (de) 2007-05-16 2008-11-20 Entex Rust & Mitschke Gmbh Vorrichtung zur Verarbeitung von zu entgasenden Produkten
EP1997608A2 (de) 2007-05-16 2008-12-03 Entex Rust & Mitschke GmbH Verfahren zur Verarbeitung von zu entgasenden Produkten
EP2289687A1 (de) 2007-05-16 2011-03-02 Entex Rust & Mitschke GmbH Verfahren zur Verarbeitung von zu entgasenden Produkten

Also Published As

Publication number Publication date
EP0676394A1 (de) 1995-10-11
ATE232514T1 (de) 2003-02-15
DK0676394T3 (da) 2003-04-22
US5457197A (en) 1995-10-10
EP0676394B1 (de) 2003-02-12
DE69529584D1 (de) 2003-03-20
ES2191037T3 (es) 2003-09-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SHAW INDUSTRIES GROUP, INC., DALTON, GA., US

8328 Change in the person/name/address of the agent

Representative=s name: BARZ, P., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8080