ES282923A1 - A procedure for the depuration of caprolactama (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure for the depuration of caprolactama (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES282923A1
ES282923A1 ES282923A ES282923A ES282923A1 ES 282923 A1 ES282923 A1 ES 282923A1 ES 282923 A ES282923 A ES 282923A ES 282923 A ES282923 A ES 282923A ES 282923 A1 ES282923 A1 ES 282923A1
Authority
ES
Spain
Prior art keywords
translation
machine
legally binding
*** translate
caprolactama
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
ES282923A
Other languages
Spanish (es)
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.)
Inventa AG fuer Forschung und Patentverwertung
Original Assignee
Inventa AG fuer Forschung und Patentverwertung
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 Inventa AG fuer Forschung und Patentverwertung filed Critical Inventa AG fuer Forschung und Patentverwertung
Publication of ES282923A1 publication Critical patent/ES282923A1/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
    • 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
    • C07D223/00—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom
    • C07D223/02—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings
    • C07D223/06—Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D223/08—Oxygen atoms
    • C07D223/10—Oxygen atoms attached in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyamides (AREA)

Abstract

A process for the clearance of epsilon-caprolactam, characterized in that the crude lactam containing water is acidified and, at a ph range of 3.2 to 4.2, is released from the water by distillation and then, in a known manner, it is still debugged by rectification and/or extraction. (Machine-translation by Google Translate, not legally binding)
ES282923A 1961-11-30 1962-11-29 A procedure for the depuration of caprolactama (Machine-translation by Google Translate, not legally binding) Expired ES282923A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1394861A CH393332A (en) 1961-11-30 1961-11-30 Process for purifying e-caprolactam

Publications (1)

Publication Number Publication Date
ES282923A1 true ES282923A1 (en) 1963-05-01

Family

ID=4396688

Family Applications (1)

Application Number Title Priority Date Filing Date
ES282923A Expired ES282923A1 (en) 1961-11-30 1962-11-29 A procedure for the depuration of caprolactama (Machine-translation by Google Translate, not legally binding)

Country Status (4)

Country Link
CH (1) CH393332A (en)
DK (1) DK103021C (en)
ES (1) ES282923A1 (en)
GB (1) GB990124A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781796B1 (en) * 1998-07-28 2000-09-22 Rhone Poulenc Fibres LACTAM DEHYDRATION PROCESS

Also Published As

Publication number Publication date
CH393332A (en) 1965-06-15
GB990124A (en) 1965-04-28
DK103021C (en) 1965-11-08

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