FR2455583A1 - Procede pour la purification de caprolactame brut contenant des amides primaires et caprolactame purifie obtenu - Google Patents

Procede pour la purification de caprolactame brut contenant des amides primaires et caprolactame purifie obtenu

Info

Publication number
FR2455583A1
FR2455583A1 FR8009893A FR8009893A FR2455583A1 FR 2455583 A1 FR2455583 A1 FR 2455583A1 FR 8009893 A FR8009893 A FR 8009893A FR 8009893 A FR8009893 A FR 8009893A FR 2455583 A1 FR2455583 A1 FR 2455583A1
Authority
FR
France
Prior art keywords
caprolactam
containing primary
purification
primary amides
crude
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.)
Withdrawn
Application number
FR8009893A
Other languages
English (en)
Inventor
Paolo Senni
Senni Et Nando Toderi Paolo
Nando Toderi
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.)
SNIA Viscosa SpA
Original Assignee
SNIA Viscosa SpA
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 SNIA Viscosa SpA filed Critical SNIA Viscosa SpA
Publication of FR2455583A1 publication Critical patent/FR2455583A1/fr
Withdrawn legal-status Critical Current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

Abstract

PROCEDE POUR PURIFIER DU CAPROLACTAME BRUT CONTENANT DES AMIDES PRIMAIRES DE FORMULE: (CF DESSIN DANS BOPI) OU R REPRESENTE UN RADICAL HYDROCARBONE COMPORTANT 1 A 14ATOMES DE CARBONE, DANS LEQUEL ON TRAITE CE CAPROLACTAME BRUT AVEC AU MOINS UN COMPOSE COMPORTANT AU MOINS UN RADICAL HYDROXY, A RAISON D'AU MOINS 20 EN POIDS PAR RAPPORT AU CAPROLACTAME BRUT, A UNE TEMPERATURE EGALE OU SUPERIEURE A CELLE A LAQUELLE L'AMMONIAC QUI FAIT PARTIE DE L'AMIDE DE FORMULEI EST LIBERE; ON SEPARE ENSUITE LE CAPROLACTAME ET ON L'ISOLE DU COMPOSE HYDROXYLE SELON DES PROCEDES CONNUS.
FR8009893A 1979-04-30 1980-04-30 Procede pour la purification de caprolactame brut contenant des amides primaires et caprolactame purifie obtenu Withdrawn FR2455583A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT7922250A IT7922250A0 (it) 1979-04-30 1979-04-30 Metodo per la purificazione di caprolattame grezzo.

Publications (1)

Publication Number Publication Date
FR2455583A1 true FR2455583A1 (fr) 1980-11-28

Family

ID=11193663

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8009893A Withdrawn FR2455583A1 (fr) 1979-04-30 1980-04-30 Procede pour la purification de caprolactame brut contenant des amides primaires et caprolactame purifie obtenu

Country Status (9)

Country Link
US (1) US4314940A (fr)
JP (1) JPS55149248A (fr)
BE (1) BE883070A (fr)
BR (1) BR8002640A (fr)
DE (1) DE3016336A1 (fr)
FR (1) FR2455583A1 (fr)
GB (1) GB2047705A (fr)
IT (1) IT7922250A0 (fr)
NL (1) NL8002498A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5416870A (en) * 1993-12-03 1995-05-16 Motorola, Inc. Optoelectronic interface device and method with reflective surface
AU3870097A (en) * 1996-10-21 1998-05-15 Dsm N.V. Process to separate epsilon-caprolactam from 6-aminocaproamide and 6-aminocaproamide oligomers
US5990306A (en) * 1997-09-03 1999-11-23 Alliedsignal Inc. Process for the purification of caprolactam obtained from the depolymerization of polyamide-containing carpet
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR896883A (fr) * 1942-08-18 1945-03-06 Ig Farbenindustrie Ag Procédé de récupération de lactames à partir de solutions aqueuses diluées
DE1926932A1 (de) * 1968-07-19 1970-01-22 Leuna Werke Veb Verfahren zur Reinigung von Lactamen
DE1930218A1 (de) * 1969-06-13 1970-12-23 Bayer Ag Verfahren zur Reinigung von epsilon-Caprolactam
DE2332982A1 (de) * 1972-06-28 1974-01-10 Snia Viscosa Verfahren zur herstellung von reinem lactam aus dessen primaeren loesungen in organischen loesungsmitteln

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013640A (en) * 1974-04-11 1977-03-22 Union Carbide Corporation Process for the recovery of amides

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR896883A (fr) * 1942-08-18 1945-03-06 Ig Farbenindustrie Ag Procédé de récupération de lactames à partir de solutions aqueuses diluées
DE1926932A1 (de) * 1968-07-19 1970-01-22 Leuna Werke Veb Verfahren zur Reinigung von Lactamen
DE1930218A1 (de) * 1969-06-13 1970-12-23 Bayer Ag Verfahren zur Reinigung von epsilon-Caprolactam
FR2052528A5 (fr) * 1969-06-13 1971-04-09 Bayer Ag
DE2332982A1 (de) * 1972-06-28 1974-01-10 Snia Viscosa Verfahren zur herstellung von reinem lactam aus dessen primaeren loesungen in organischen loesungsmitteln
FR2190822A1 (fr) * 1972-06-28 1974-02-01 Snia Viscosa

Also Published As

Publication number Publication date
JPS55149248A (en) 1980-11-20
BE883070A (fr) 1980-10-30
NL8002498A (nl) 1980-11-03
GB2047705A (en) 1980-12-03
US4314940A (en) 1982-02-09
BR8002640A (pt) 1980-12-09
IT7922250A0 (it) 1979-04-30
DE3016336A1 (de) 1980-11-13

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Legal Events

Date Code Title Description
ST Notification of lapse