ATE539052T1 - Ein verfahren zur wiedergewinnung von caprolactam und wasserdampf - Google Patents

Ein verfahren zur wiedergewinnung von caprolactam und wasserdampf

Info

Publication number
ATE539052T1
ATE539052T1 AT00905450T AT00905450T ATE539052T1 AT E539052 T1 ATE539052 T1 AT E539052T1 AT 00905450 T AT00905450 T AT 00905450T AT 00905450 T AT00905450 T AT 00905450T AT E539052 T1 ATE539052 T1 AT E539052T1
Authority
AT
Austria
Prior art keywords
caprolactam
water vapor
impure
stream
recovering
Prior art date
Application number
AT00905450T
Other languages
English (en)
Inventor
Peter Cheng
Jan Hendrix
Leonardus Raets
Original Assignee
Dsm Ip Assets Bv
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 Ip Assets Bv filed Critical Dsm Ip Assets Bv
Application granted granted Critical
Publication of ATE539052T1 publication Critical patent/ATE539052T1/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
    • 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)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing Of Solid Wastes (AREA)
  • Polyamides (AREA)
AT00905450T 1999-02-26 2000-02-09 Ein verfahren zur wiedergewinnung von caprolactam und wasserdampf ATE539052T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12209899P 1999-02-26 1999-02-26
US12211299P 1999-02-26 1999-02-26
PCT/NL2000/000080 WO2000050394A2 (en) 1999-02-26 2000-02-09 A process for recovering caprolactam and steam

Publications (1)

Publication Number Publication Date
ATE539052T1 true ATE539052T1 (de) 2012-01-15

Family

ID=26820154

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00905450T ATE539052T1 (de) 1999-02-26 2000-02-09 Ein verfahren zur wiedergewinnung von caprolactam und wasserdampf

Country Status (5)

Country Link
US (1) US6495682B2 (de)
EP (1) EP1154995B1 (de)
AT (1) ATE539052T1 (de)
AU (1) AU2698600A (de)
WO (1) WO2000050394A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114516838B (zh) * 2022-02-24 2024-01-23 江苏扬农化工集团有限公司 一种环己酮肟气相重排产物残渣的资源化利用方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2813858A (en) 1954-08-26 1957-11-19 Allied Chem & Dye Corp Process for purifying epsilon-caprolactam
BE567625A (fr) * 1957-07-16 1960-08-12 Inventa Ag PROCEDE DE RECUPERATION DE epsilon-CAPROLACTAME A PARTIR DE SON POLYMERE.
DE1262853B (de) * 1963-11-19 1968-03-07 Hermann Neuhierl Dipl Chem Dr Bowdenzuganordnung fuer die mechanische Fernbetaetigung von Verstellgliedern ortsfester Spielzeuge
US4107160A (en) * 1977-08-24 1978-08-15 Zimmer Aktiengesellschaft Continuous process for the recovery of caprolactam
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
US5977193A (en) * 1991-06-21 1999-11-02 Basf Corporation Reclaiming epsilon-caprolactam from nylon 6 carpet
DE4442727A1 (de) 1994-12-01 1996-06-05 Basf Ag Verfahren zur Herstellung von Caprolactam
DE19503963C1 (de) * 1995-02-07 1996-11-28 Ebner Anlagen & Apparate Verfahren zur Herstellung von Epsilon-Caprolactam aus Polyamid-6-Abfällen
US5681952A (en) * 1995-12-08 1997-10-28 Alliedsignal Inc. Process for depolymerizing nylon-containing 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

Also Published As

Publication number Publication date
EP1154995B1 (de) 2011-12-28
WO2000050394A3 (en) 2000-12-07
WO2000050394A2 (en) 2000-08-31
EP1154995A2 (de) 2001-11-21
US20020058808A1 (en) 2002-05-16
AU2698600A (en) 2000-09-14
US6495682B2 (en) 2002-12-17

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