GB1297263A - - Google Patents

Info

Publication number
GB1297263A
GB1297263A GB1297263DA GB1297263A GB 1297263 A GB1297263 A GB 1297263A GB 1297263D A GB1297263D A GB 1297263DA GB 1297263 A GB1297263 A GB 1297263A
Authority
GB
United Kingdom
Prior art keywords
caprolactam
vapour
april
washings
scrubbing
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1297263A publication Critical patent/GB1297263A/en
Expired 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
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyamides (AREA)
GB1297263D 1969-04-15 1969-04-15 Expired GB1297263A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1913669 1969-04-15

Publications (1)

Publication Number Publication Date
GB1297263A true GB1297263A (zh) 1972-11-22

Family

ID=10124342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1297263D Expired GB1297263A (zh) 1969-04-15 1969-04-15

Country Status (1)

Country Link
GB (1) GB1297263A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10029422A1 (de) * 2000-06-15 2001-12-20 Andreas Hornung Einstufiges Verfahren zur Rückgewinnung von hochreinem epsilon-Caprolactam aus Teppichböden oder Mischfasern
DE19753377B4 (de) * 1997-12-02 2008-07-10 Lurgi Zimmer Gmbh Verfahren zur Herstellung von ε-Caprolactam aus Extraktwasser der PA-6-Synthese
EP2156933A1 (de) 2008-08-19 2010-02-24 Lurgi Zimmer GmbH Kontinuierliches Verfahren zur Extraktion von Polyamid-6

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19753377B4 (de) * 1997-12-02 2008-07-10 Lurgi Zimmer Gmbh Verfahren zur Herstellung von ε-Caprolactam aus Extraktwasser der PA-6-Synthese
DE10029422A1 (de) * 2000-06-15 2001-12-20 Andreas Hornung Einstufiges Verfahren zur Rückgewinnung von hochreinem epsilon-Caprolactam aus Teppichböden oder Mischfasern
EP2156933A1 (de) 2008-08-19 2010-02-24 Lurgi Zimmer GmbH Kontinuierliches Verfahren zur Extraktion von Polyamid-6
DE102008044452A1 (de) 2008-08-19 2010-02-25 Lurgi Zimmer Gmbh Kontinuierliches Verfahren zur Extraktion von Polyamid-6

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees