ATE309210T1 - Wiedergewinnung von caprolactam aus nylon-6 abfällen - Google Patents

Wiedergewinnung von caprolactam aus nylon-6 abfällen

Info

Publication number
ATE309210T1
ATE309210T1 AT96926887T AT96926887T ATE309210T1 AT E309210 T1 ATE309210 T1 AT E309210T1 AT 96926887 T AT96926887 T AT 96926887T AT 96926887 T AT96926887 T AT 96926887T AT E309210 T1 ATE309210 T1 AT E309210T1
Authority
AT
Austria
Prior art keywords
liquid aqueous
water insoluble
hydrolyzable polymer
caprolactam
nylon
Prior art date
Application number
AT96926887T
Other languages
English (en)
Inventor
Theodore John Jenczewski
Lamberto Crescentini
Richard Eugene Mayer
Original Assignee
Honeywell Int 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 Int Inc filed Critical Honeywell Int Inc
Application granted granted Critical
Publication of ATE309210T1 publication Critical patent/ATE309210T1/de

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)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Pens And Brushes (AREA)
AT96926887T 1995-08-10 1996-08-05 Wiedergewinnung von caprolactam aus nylon-6 abfällen ATE309210T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/511,334 US5656757A (en) 1995-08-10 1995-08-10 Monomer recovery from multi-component materials
PCT/US1996/012705 WO1997006137A1 (en) 1995-08-10 1996-08-05 Recovery of caprolactam from nylon-6 scrap

Publications (1)

Publication Number Publication Date
ATE309210T1 true ATE309210T1 (de) 2005-11-15

Family

ID=24034447

Family Applications (1)

Application Number Title Priority Date Filing Date
AT96926887T ATE309210T1 (de) 1995-08-10 1996-08-05 Wiedergewinnung von caprolactam aus nylon-6 abfällen

Country Status (7)

Country Link
US (1) US5656757A (de)
EP (1) EP0850219B1 (de)
AT (1) ATE309210T1 (de)
CA (1) CA2229207C (de)
DE (1) DE69635418T2 (de)
TW (1) TW380145B (de)
WO (1) WO1997006137A1 (de)

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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
US5948908A (en) * 1996-03-18 1999-09-07 Alliedsignal Inc. Process for depolymerizing polycaprolactam processing waste to form caprolactam
US6462230B1 (en) 1997-01-16 2002-10-08 Kabushiki Kaisha Kobe Seiko Sho Method of and apparatus for decomposing wastes
TW358106B (en) * 1997-02-05 1999-05-11 Kobe Steel Ltd Apparatus for and process of hydrolyzing and recycling polyisocyanate derivatives
NL1005942C2 (nl) * 1997-05-01 1998-11-03 Dsm Nv Depolymeriseren van polyamiden.
WO1999000479A1 (en) * 1997-06-27 1999-01-07 The Procter & Gamble Company Non-aqueous, fatty acid-containing structured liquid detergent compositions
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
EP1173419B1 (de) 1999-04-23 2006-11-02 DSM IP Assets B.V. Verfahren zur nylondepolymerisierung
DE10039268A1 (de) * 2000-08-11 2002-02-21 Degussa Hydrolyse von Acylaminosäuren
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
DE10225692A1 (de) * 2002-06-10 2003-12-24 Zimmer Ag Verfahren zur Herstellung von Caprolactam aus Polyamid-haltigen Abfällen
DE10256790A1 (de) * 2002-12-05 2004-06-17 Degussa Ag Kontinuierliches Verfahren zur Herstellung füllstoffhaltiger Kautschukgranulate
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
US8110131B1 (en) 2006-12-06 2012-02-07 Dell Orco Sergio Carpet reclamation system
CH700545A2 (de) 2009-03-05 2010-09-15 List Holding Ag Verfahren und Vorrichtung zur kontinuierlichen oder batchweisen Depolymerisierung von Polycaprolaktam.
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
US8113448B2 (en) * 2009-04-22 2012-02-14 Keating Joseph Z Methods of recycling carpet components and carpet components formed thereform
US8360348B2 (en) 2010-08-12 2013-01-29 Frank Levy Method and apparatus for recycling carpet
US8870104B2 (en) 2011-01-13 2014-10-28 Frank Levy Method for separating carpet fibers
US10000715B2 (en) 2013-01-17 2018-06-19 Greenmantra Recycling Technologies Ltd. Catalytic depolymerisation of polymeric materials
CN104892511A (zh) * 2014-09-26 2015-09-09 江苏弘盛新材料股份有限公司 一种提高己内酰胺单体回收质量的系统
US10472487B2 (en) * 2015-12-30 2019-11-12 Greenmantra Recycling Technologies Ltd. Reactor for continuously treating polymeric material
AU2018204945B2 (en) * 2015-12-30 2019-09-19 Greenmantra Recycling Technologies Ltd. Reactor for continuously treating polymeric material
ES2925008T3 (es) 2016-02-13 2022-10-13 Greenmantra Recycling Tech Ltd Asfalto modificado con polímero con aditivo de cera
MX2018011492A (es) 2016-03-24 2019-02-20 Greenmantra Recycling Tech Ltd Cera como modificador de flujo de fusion y adyuvante de procesamiento para polimeros.
CA3036136A1 (en) 2016-09-29 2018-04-05 Greenmantra Recycling Technologies Ltd. Reactor for treating polystyrene material
EP3717559A4 (de) 2017-11-28 2021-11-17 GreenMantra Recycling Technologies Ltd Verkapselung von modifikatoren in depolymerisierten produkten
BR112020024507A2 (pt) 2018-05-31 2021-03-02 Greenmantra Recycling Technologies Ltd. látex, tinta, adesivo, revestimento, teste de imunoensaio e solução
US10723858B2 (en) 2018-09-18 2020-07-28 Greenmantra Recycling Technologies Ltd. Method for purification of depolymerized polymers using supercritical fluid extraction
JP7433353B2 (ja) * 2022-03-18 2024-02-19 本田技研工業株式会社 樹脂組成物のリサイクル装置
WO2023187045A1 (en) * 2022-03-30 2023-10-05 Basf Se Process for hydrolytically depolymerizing a polyamide
CN118974011A (zh) * 2022-04-01 2024-11-15 巴斯夫欧洲公司 在用于水解解聚聚酰胺的方法中除水
WO2023187036A1 (en) * 2022-04-01 2023-10-05 Basf Se Heat integration in a process for hydrolytically depolymerizing a polyamide
AU2024245974A1 (en) * 2023-03-31 2025-10-09 Basf Se Highly integrated caprolactam recycling process
AU2024286546A1 (en) * 2023-06-06 2025-12-18 Basf Se Process for hydrolytically depolymerizing a polyamide
WO2025061939A1 (en) * 2023-09-22 2025-03-27 Basf Se Highly heat-integrated process for preparing purified epsilon-caprolactam from polyamide 6

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US3182055A (en) * 1963-02-18 1965-05-04 Allied Chem Regeneration of e-caprolactam from polyamides
US3317519A (en) * 1965-05-21 1967-05-02 Allied Chem Simultaneous depolymerization of polycaproamide and polyester with recovery of caprolactam
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
DE3030735A1 (de) * 1980-08-14 1982-03-25 Basf Ag, 6700 Ludwigshafen Verfahren zur gewinnung von caprolactam durch spaltung von oligomeren des caprolactams
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
US4578510A (en) * 1984-12-11 1986-03-25 Celanese Corporation Process for minimizing formation of low molecular weight oligomers during hydrolytic depolymerization of condensation polymers
US4620032A (en) * 1984-12-11 1986-10-28 Celanese Corporation Depolymerization of condensation polymers involving a pre-molecular weight reduction step
DE3524394A1 (de) * 1985-07-09 1987-01-15 Basf Ag Verfahren zur gewinnung von caprolactam durch spaltung von oligomeren des caprolactams
US4764607A (en) * 1986-12-22 1988-08-16 Allied Corporation Method for recovering caprolactam
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
DE4211609A1 (de) * 1991-08-30 1993-03-04 Bayer Ag Gewinnung von caprolactam durch thermische spaltung von polyamid 6
DE4215087A1 (de) * 1992-05-07 1993-11-11 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Polycaprolactam
DE4216848A1 (de) * 1992-05-21 1993-11-25 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
US5302756A (en) * 1992-12-23 1994-04-12 E. I. Du Pont De Nemours And Company Ammonolysis of nylon
EP0608454B1 (de) * 1993-01-28 1997-08-13 POLYMER ENGINEERING GmbH Verfahren und Vorrichtung zur Herstellung von Polyamid 6 aus Polyamid-Abfällen
US5294707A (en) * 1993-02-25 1994-03-15 Basf Corporation Semi-continuous depolymerization of nylon 6 polymer
US5310905A (en) * 1993-04-14 1994-05-10 E. I. Du Pont De Nemours And Company Conversion of nylon 6 and/or nylon 6,6 to monomers
DE4322953A1 (de) * 1993-07-09 1995-01-12 Basf Ag Verfahren zur Gewinnung von Caprolactam und eines Alkalimetallcarbonats aus Destillationsrückständen, die bei der Reinigung von Caprolactam anfallen
DE4407222A1 (de) * 1994-03-04 1995-09-07 Basf Ag Verfahren zur Rückgewinnung von Caprolactam aus Oliogo- und/oder Polymeren des Caprolactams
US5457197A (en) * 1994-04-08 1995-10-10 Alliedsignal Inc. Monomer recovery from multi-component materials
US5468900A (en) * 1994-09-29 1995-11-21 E. I. Du Pont De Nemours And Company Conversion of nylon 6 and/or nylon 6,6 to adipic acid
US5455346B1 (en) * 1994-12-12 1999-02-09 Basf Corp Obtaining caprolactam by cleavage of molten polycaprolactam

Also Published As

Publication number Publication date
CA2229207A1 (en) 1997-02-20
CA2229207C (en) 2007-10-16
TW380145B (en) 2000-01-21
WO1997006137A1 (en) 1997-02-20
EP0850219A1 (de) 1998-07-01
DE69635418D1 (de) 2005-12-15
EP0850219B1 (de) 2005-11-09
US5656757A (en) 1997-08-12
DE69635418T2 (de) 2006-05-24

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