CH393332A - Process for purifying e-caprolactam - Google Patents

Process for purifying e-caprolactam

Info

Publication number
CH393332A
CH393332A CH1394861A CH1394861A CH393332A CH 393332 A CH393332 A CH 393332A CH 1394861 A CH1394861 A CH 1394861A CH 1394861 A CH1394861 A CH 1394861A CH 393332 A CH393332 A CH 393332A
Authority
CH
Switzerland
Prior art keywords
caprolactam
purifying
Prior art date
Application number
CH1394861A
Other languages
German (de)
Inventor
Zimmerli Willi Dr Chem
Fueeg Heinz Dr Chem
Original Assignee
Inventa Ag
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 filed Critical Inventa Ag
Priority to CH1394861A priority Critical patent/CH393332A/en
Priority to GB38055/62A priority patent/GB990124A/en
Priority to DK471262AA priority patent/DK103021C/en
Priority to ES282923A priority patent/ES282923A1/en
Publication of CH393332A publication Critical patent/CH393332A/en

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
CH1394861A 1961-11-30 1961-11-30 Process for purifying e-caprolactam CH393332A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH1394861A CH393332A (en) 1961-11-30 1961-11-30 Process for purifying e-caprolactam
GB38055/62A GB990124A (en) 1961-11-30 1962-10-08 Process for the purification of caprolactam
DK471262AA DK103021C (en) 1961-11-30 1962-11-01 Method for purifying ɛ-caprolactam.
ES282923A ES282923A1 (en) 1961-11-30 1962-11-29 A procedure for the depuration of caprolactama (Machine-translation by Google Translate, not legally binding)

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
CH393332A true CH393332A (en) 1965-06-15

Family

ID=4396688

Family Applications (1)

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

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
GB990124A (en) 1965-04-28
ES282923A1 (en) 1963-05-01
DK103021C (en) 1965-11-08

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