BR7706121A - Processo para a purificacao de epsilon-caprolactama - Google Patents

Processo para a purificacao de epsilon-caprolactama

Info

Publication number
BR7706121A
BR7706121A BR7706121A BR7706121A BR7706121A BR 7706121 A BR7706121 A BR 7706121A BR 7706121 A BR7706121 A BR 7706121A BR 7706121 A BR7706121 A BR 7706121A BR 7706121 A BR7706121 A BR 7706121A
Authority
BR
Brazil
Prior art keywords
caprolactama
epsilon
purification
Prior art date
Application number
BR7706121A
Other languages
English (en)
Inventor
J Schroter
H Danzinger
G Rampart
B Kaiser
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of BR7706121A publication Critical patent/BR7706121A/pt

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)
  • Other In-Based Heterocyclic Compounds (AREA)
BR7706121A 1976-09-15 1977-09-14 Processo para a purificacao de epsilon-caprolactama BR7706121A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2641449A DE2641449B2 (de) 1976-09-15 1976-09-15 Verfahren zur Reinigung einer Lösung von e-Caprolactam

Publications (1)

Publication Number Publication Date
BR7706121A true BR7706121A (pt) 1978-07-04

Family

ID=5987938

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7706121A BR7706121A (pt) 1976-09-15 1977-09-14 Processo para a purificacao de epsilon-caprolactama

Country Status (11)

Country Link
US (1) US4170592A (pt)
JP (1) JPS6053012B2 (pt)
BE (1) BE858718A (pt)
BR (1) BR7706121A (pt)
DD (1) DD132788A5 (pt)
DE (1) DE2641449B2 (pt)
ES (1) ES462356A1 (pt)
FR (1) FR2364903A1 (pt)
GB (1) GB1556943A (pt)
IT (1) IT1091125B (pt)
NL (1) NL7710150A (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW215084B (en) * 1992-04-17 1993-10-21 Sumitomo Chemical Co Process for producing a high purity caprolactam
BE1011047A3 (nl) * 1997-03-17 1999-04-06 Dsm Nv Werkwijze voor het zuiveren van caprolactam.
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2758991A (en) * 1956-08-14 Hvvevvtofry
FR1053885A (fr) * 1950-07-26 1954-02-05 Inventa Ag Procédé de préparation en continu de lactames purs par extraction
FR1095772A (fr) * 1953-03-19 1955-06-06 Stamicarbon Procédé pour épurer des lactames
FR1182076A (fr) * 1956-11-10 1959-06-22 Bayer Ag Procédé d'obtention d'epsilon-caprolactame pure à partir du mélange de réaction de beckmann
DE1031308B (de) * 1956-11-10 1958-06-04 Bayer Ag Verfahren zur Gewinnung von reinem Caprolactam aus dem neutralisierten Reaktionsgemisch der Beckmannschen Umlagerung von Cyclohexanonoxim
FR1217690A (fr) * 1957-10-26 1960-05-05 Stamicarbon Procédé pour préparer des lactames contenant des oligopolymères de lactame
US3761467A (en) * 1971-02-11 1973-09-25 Allied Chem Recovery of epsilon-caprolactam
NL7505130A (nl) * 1975-05-01 1976-11-03 Stamicarbon Werkwijze voor de winning van zuiver epsilon- -caprolactam uit een waterige oplossing hiervan.

Also Published As

Publication number Publication date
DE2641449B2 (de) 1980-07-31
ES462356A1 (es) 1978-06-16
FR2364903A1 (fr) 1978-04-14
JPS5337688A (en) 1978-04-06
DE2641449C3 (pt) 1987-12-03
FR2364903B1 (pt) 1982-03-26
NL7710150A (nl) 1978-03-17
US4170592A (en) 1979-10-09
GB1556943A (en) 1979-12-05
DE2641449A1 (de) 1978-03-23
DD132788A5 (de) 1978-11-01
BE858718A (fr) 1978-03-15
IT1091125B (it) 1985-06-26
JPS6053012B2 (ja) 1985-11-22

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