AU2001237793A1 - Process for the preparation of epsilon-caprolactam - Google Patents

Process for the preparation of epsilon-caprolactam

Info

Publication number
AU2001237793A1
AU2001237793A1 AU2001237793A AU3779301A AU2001237793A1 AU 2001237793 A1 AU2001237793 A1 AU 2001237793A1 AU 2001237793 A AU2001237793 A AU 2001237793A AU 3779301 A AU3779301 A AU 3779301A AU 2001237793 A1 AU2001237793 A1 AU 2001237793A1
Authority
AU
Australia
Prior art keywords
epsilon
caprolactam
preparation
compounds
aminocaproic
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.)
Abandoned
Application number
AU2001237793A
Inventor
Frank Petrus Willibrord Agterberg
Rudolf Philippus Maria Guit
Matthias Robert Jozef Offermanns
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.)
Koninklijke DSM NV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8170971&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU2001237793(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by DSM NV filed Critical DSM NV
Priority claimed from PCT/NL2001/000081 external-priority patent/WO2001056984A1/en
Publication of AU2001237793A1 publication Critical patent/AU2001237793A1/en
Abandoned 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
    • C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles
    • 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)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Abstract

A process for the preparation of epsilon -caprolactam starting from 6-aminocaproic acid, 6-aminocaproamide, 6-aminocaproic ester, 6-aminocapronitrile, oligomers or polymers of these compounds or mixtures comprising at least two of these compounds, which process is performed in the presence of N-(5-carboxypentyl)- epsilon -caprolactam and/or derivative thereof in an amount of less than 50 wt.% and more than 0.1 wt.% (based on the total reaction mixture).
AU2001237793A 2000-02-03 2001-02-02 Process for the preparation of epsilon-caprolactam Abandoned AU2001237793A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP00200365 2000-02-03
EP00200365A EP1122241A1 (en) 2000-02-03 2000-02-03 Process for the preparation of epsilon-caprolactam
PCT/NL2001/000081 WO2001056984A1 (en) 2000-02-03 2001-02-02 PROCESS FOR THE PREPARATION OF ε-CAPROLACTAM

Publications (1)

Publication Number Publication Date
AU2001237793A1 true AU2001237793A1 (en) 2001-08-14

Family

ID=8170971

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001237793A Abandoned AU2001237793A1 (en) 2000-02-03 2001-02-02 Process for the preparation of epsilon-caprolactam

Country Status (10)

Country Link
EP (2) EP1122241A1 (en)
JP (1) JP2003521533A (en)
KR (1) KR100762055B1 (en)
CN (1) CN1187324C (en)
AT (1) ATE249430T1 (en)
AU (1) AU2001237793A1 (en)
CA (1) CA2399220A1 (en)
DE (1) DE60100746T2 (en)
ES (1) ES2206408T3 (en)
MY (1) MY122832A (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3843792A1 (en) * 1988-12-24 1990-07-05 Basf Ag METHOD FOR PRODUCING 6-AMINOCAPRONIC ACID ESTERS
DE4442727A1 (en) * 1994-12-01 1996-06-05 Basf Ag Process for the production of caprolactam
DE4443125A1 (en) * 1994-12-03 1996-06-05 Basf Ag Process for the production of caprolactam
MY116498A (en) * 1995-03-01 2004-02-28 Dsm Ip Assets Bv Process for the preparation of é - caprolactam
NL1002429C2 (en) * 1996-02-23 1997-08-26 Du Pont Process for the preparation of a mixture of epsilon-caprolactam, 6-aminocaproic acid and 6-aminocaproic acid amide.
EP0826666A1 (en) * 1996-09-02 1998-03-04 Dsm N.V. Process to prepare epsilon-caprolactam
US5877314A (en) * 1997-02-14 1999-03-02 Dsm N.V. Process to continuously prepare an aqueous mixture of episilon caprolactum and episilon caprolactum precursors
EP0860431A1 (en) * 1997-02-19 1998-08-26 Dsm N.V. Process to prepare e-caprolactam
EP0937712A1 (en) * 1998-02-18 1999-08-25 Dsm N.V. Process for the preparation of E-caprolactam

Also Published As

Publication number Publication date
EP1122241A1 (en) 2001-08-08
CN1187324C (en) 2005-02-02
CA2399220A1 (en) 2001-08-09
DE60100746T2 (en) 2004-07-15
KR20020073200A (en) 2002-09-19
MY122832A (en) 2006-05-31
ES2206408T3 (en) 2004-05-16
EP1257532B1 (en) 2003-09-10
CN1419540A (en) 2003-05-21
KR100762055B1 (en) 2007-10-04
DE60100746D1 (en) 2003-10-16
JP2003521533A (en) 2003-07-15
ATE249430T1 (en) 2003-09-15
EP1257532A1 (en) 2002-11-20

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