FR2318156A1 - Procede de purification de l'a-amino-e-caprolactame - Google Patents

Procede de purification de l'a-amino-e-caprolactame

Info

Publication number
FR2318156A1
FR2318156A1 FR7621690A FR7621690A FR2318156A1 FR 2318156 A1 FR2318156 A1 FR 2318156A1 FR 7621690 A FR7621690 A FR 7621690A FR 7621690 A FR7621690 A FR 7621690A FR 2318156 A1 FR2318156 A1 FR 2318156A1
Authority
FR
France
Prior art keywords
caprolactam
purificn
crystallisation
traces
alpha
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.)
Granted
Application number
FR7621690A
Other languages
English (en)
French (fr)
Other versions
FR2318156B1 (https=
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Publication of FR2318156A1 publication Critical patent/FR2318156A1/fr
Application granted granted Critical
Publication of FR2318156B1 publication Critical patent/FR2318156B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C07D223/12—Nitrogen atoms not forming part of a nitro radical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR7621690A 1975-07-17 1976-07-15 Procede de purification de l'a-amino-e-caprolactame Granted FR2318156A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8669275A JPS5212187A (en) 1975-07-17 1975-07-17 Method of purifying alpha-amino-epsilon- caprolactam

Publications (2)

Publication Number Publication Date
FR2318156A1 true FR2318156A1 (fr) 1977-02-11
FR2318156B1 FR2318156B1 (https=) 1980-09-26

Family

ID=13894007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621690A Granted FR2318156A1 (fr) 1975-07-17 1976-07-15 Procede de purification de l'a-amino-e-caprolactame

Country Status (2)

Country Link
JP (1) JPS5212187A (https=)
FR (1) FR2318156A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490312A (fr) * 1965-09-11 1967-07-28 Zimmer Ag Hans J Procédé perfectionné de purification de l'epsilon-caprolactame
FR2185623A1 (https=) * 1972-05-19 1974-01-04 Bayer Ag
US3898213A (en) * 1974-06-06 1975-08-05 Allied Chem Separation of {60 -amino-{107 -lactams

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1490312A (fr) * 1965-09-11 1967-07-28 Zimmer Ag Hans J Procédé perfectionné de purification de l'epsilon-caprolactame
FR2185623A1 (https=) * 1972-05-19 1974-01-04 Bayer Ag
US3898213A (en) * 1974-06-06 1975-08-05 Allied Chem Separation of {60 -amino-{107 -lactams

Also Published As

Publication number Publication date
JPS5212187A (en) 1977-01-29
FR2318156B1 (https=) 1980-09-26

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Legal Events

Date Code Title Description
ST Notification of lapse