DE69420075D1 - Wiedergewinnung von Epsilon-Caprolactam aus Teppichabfallen - Google Patents

Wiedergewinnung von Epsilon-Caprolactam aus Teppichabfallen

Info

Publication number
DE69420075D1
DE69420075D1 DE69420075T DE69420075T DE69420075D1 DE 69420075 D1 DE69420075 D1 DE 69420075D1 DE 69420075 T DE69420075 T DE 69420075T DE 69420075 T DE69420075 T DE 69420075T DE 69420075 D1 DE69420075 D1 DE 69420075D1
Authority
DE
Germany
Prior art keywords
caprolactam
epsilon
recovery
carpet waste
carpet
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 - Fee Related
Application number
DE69420075T
Other languages
English (en)
Other versions
DE69420075T2 (de
Inventor
Antoon Hendrik Theres Halderit
Martin Booij
Jan Agnes Jozef Hendrix
Yvonne Helene Frentzen
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.)
DSM IP Assets BV
Original Assignee
DSM NV
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 DSM NV filed Critical DSM NV
Publication of DE69420075D1 publication Critical patent/DE69420075D1/de
Application granted granted Critical
Publication of DE69420075T2 publication Critical patent/DE69420075T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Polyamides (AREA)
  • Carpets (AREA)
  • Processing Of Solid Wastes (AREA)
  • Fertilizers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
DE69420075T 1993-06-04 1994-06-02 Wiedergewinnung von Epsilon-Caprolactam aus Teppichabfallen Expired - Fee Related DE69420075T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9300963 1993-06-04

Publications (2)

Publication Number Publication Date
DE69420075D1 true DE69420075D1 (de) 1999-09-23
DE69420075T2 DE69420075T2 (de) 2000-04-13

Family

ID=19862486

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69420075T Expired - Fee Related DE69420075T2 (de) 1993-06-04 1994-06-02 Wiedergewinnung von Epsilon-Caprolactam aus Teppichabfallen

Country Status (7)

Country Link
US (1) US5556890A (de)
EP (1) EP0627417B1 (de)
AT (1) ATE183501T1 (de)
DE (1) DE69420075T2 (de)
DK (1) DK0627417T3 (de)
ES (1) ES2136697T3 (de)
SG (1) SG50773A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1000781C2 (nl) * 1995-07-12 1997-01-14 Dsm Nv Werkwijze voor het winnen van caprolactam uit nylon-6 bevattende afval.
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
US5990306A (en) 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
DE19753377B4 (de) * 1997-12-02 2008-07-10 Lurgi Zimmer Gmbh Verfahren zur Herstellung von ε-Caprolactam aus Extraktwasser der PA-6-Synthese
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
KR101098606B1 (ko) * 2003-07-25 2011-12-23 디에스엠 아이피 어셋츠 비.브이. 카프로락탐의 정제 방법
TW202342428A (zh) * 2022-01-28 2023-11-01 荷蘭商卡普三世責任有限公司 用於回收來自包含聚醯胺６漁網的ε－己內醯胺之方法
TW202342429A (zh) * 2022-01-28 2023-11-01 荷蘭商卡普三世責任有限公司 用於回收來自包含尼龍６之漁網的ε-己內醯胺之方法
EP4306510A1 (de) * 2022-07-11 2024-01-17 Cap Iii B.V. Verfahren zur rückgewinnung von epsilon-caprolactam aus nylon-6-haltigem mehrkomponentenmaterial

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253716B (de) * 1961-09-28 1967-11-09 Basf Ag Verfahren zur Reinigung von Lactamen
DE1244024B (de) * 1962-06-29 1967-07-06 Deutsche Telephonwerk Kabel Schaltungsanordnung zur selbsttaetigen Fest- und Einstellung eines Messbereichs von elektrischen Strom- und Spannungs-Messeinrichtungen in Fernmelde- bzw. Fernmessanlagen
GB1172997A (en) * 1966-07-22 1969-12-03 Ici Ltd Monomeric Compounds from Polyamides
GB1271041A (en) * 1968-09-10 1972-04-19 Courtaulds Ltd Improvements in and relating to the manufacturing of polycaproamide
JPS5313636B2 (de) * 1973-10-01 1978-05-11
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
JPS52108991A (en) * 1976-03-09 1977-09-12 Toyobo Co Ltd Purification of lactam
JPS52111585A (en) * 1976-03-11 1977-09-19 Toyobo Co Ltd Purification of lactam
JPS53132585A (en) * 1977-04-21 1978-11-18 Toyobo Co Ltd Recovery of epsilon-caprolactam
NL8303028A (nl) * 1983-08-31 1985-03-18 Stamicarbon Winning van caprolactam uit caprolactam-bevattend destillatie-residu.
JPH01121801A (ja) * 1987-11-06 1989-05-15 Matsushita Electric Ind Co Ltd カラーフィルタの製造法
JPH01167807A (ja) * 1987-12-24 1989-07-03 Matsushita Electric Ind Co Ltd カラーフィルタの製造方法
DE3925575A1 (de) * 1989-08-02 1991-02-07 Basf Ag Verfahren zur kontinuierlichen reinigung von caprolactam
US5169870A (en) * 1991-06-21 1992-12-08 Basf Corporation Reclaiming ε-caprolactam from nylon 6 carpet

Also Published As

Publication number Publication date
EP0627417A1 (de) 1994-12-07
EP0627417B1 (de) 1999-08-18
ATE183501T1 (de) 1999-09-15
DK0627417T3 (da) 2000-03-13
ES2136697T3 (es) 1999-12-01
DE69420075T2 (de) 2000-04-13
SG50773A1 (en) 1998-07-20
US5556890A (en) 1996-09-17

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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: DSM IP ASSETS B.V., HEERLEN, NL

8339 Ceased/non-payment of the annual fee