BR7504988A - Processo para a recuperacao de epsilon-caprolactma a partir da mistura reacional de epsilon-caprolactama e acido sulfurico - Google Patents

Processo para a recuperacao de epsilon-caprolactma a partir da mistura reacional de epsilon-caprolactama e acido sulfurico

Info

Publication number
BR7504988A
BR7504988A BR7504988*A BR7504988A BR7504988A BR 7504988 A BR7504988 A BR 7504988A BR 7504988 A BR7504988 A BR 7504988A BR 7504988 A BR7504988 A BR 7504988A
Authority
BR
Brazil
Prior art keywords
epsilon
caprolactma
caprolactama
recovery
sulfuric acid
Prior art date
Application number
BR7504988*A
Other languages
English (en)
Inventor
Rooiji A De
J Elmendorp
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Publication of BR7504988A publication Critical patent/BR7504988A/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)
  • Extraction Or Liquid Replacement (AREA)
  • Removal Of Specific Substances (AREA)
  • Hydrogenated Pyridines (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Pyrrole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR7504988*A 1974-08-05 1975-08-05 Processo para a recuperacao de epsilon-caprolactma a partir da mistura reacional de epsilon-caprolactama e acido sulfurico BR7504988A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7410450A NL7410450A (nl) 1974-08-05 1974-08-05 Werkwijze voor het winnen van epsilon-capro- lactam uit een epsilon-caprolactamzwavelzuur reactiemengsel.

Publications (1)

Publication Number Publication Date
BR7504988A true BR7504988A (pt) 1976-07-27

Family

ID=19821863

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7504988*A BR7504988A (pt) 1974-08-05 1975-08-05 Processo para a recuperacao de epsilon-caprolactma a partir da mistura reacional de epsilon-caprolactama e acido sulfurico

Country Status (15)

Country Link
US (1) US4021422A (pt)
JP (1) JPS5141377A (pt)
AR (1) AR203690A1 (pt)
AU (1) AU8365075A (pt)
BE (1) BE832114A (pt)
BR (1) BR7504988A (pt)
DD (1) DD120651A5 (pt)
DE (1) DE2534075A1 (pt)
ES (1) ES439985A1 (pt)
FR (1) FR2281358A1 (pt)
GB (1) GB1462740A (pt)
IN (1) IN141028B (pt)
IT (1) IT1041133B (pt)
NL (1) NL7410450A (pt)
ZA (1) ZA754886B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2651195C3 (de) * 1976-11-10 1985-01-31 Basf Ag, 6700 Ludwigshafen Verfahren zur Gewinnung von grobkristallinem reinem Ammonsulfat
NL7700882A (nl) * 1977-01-28 1978-08-01 Stamicarbon Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuurreac- tiemengsel.
US20130211038A1 (en) * 2010-07-02 2013-08-15 Dsm Ip Assets B.V. High temperature lactam neutralisation
WO2013053377A1 (en) 2011-10-10 2013-04-18 Dsm Ip Assets B.V. High temperature lactam neutralisation

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605261A (en) * 1952-07-29 method foe
US2221369A (en) * 1940-11-12 Process foe producing lactams
US2313026A (en) * 1939-02-13 1943-03-02 Schlack Paul Process for the manufacture of lactams from oximes of cyclic ketones
GB750222A (en) * 1952-09-25 1956-06-13 British Celanese Improvements in the production of amides
GB1123472A (en) * 1965-01-21 1968-08-14 Snia Viscosa Improvements in or relating to the neutralization of acid solutions of caprolactam
US3937789A (en) * 1965-01-21 1976-02-10 Snia Viscosa Societa' Nazionale Industria Applicazioni Viscosa S.P.A. Process for the neutralization of acid solutions of caprolactam
CH546765A (de) * 1971-02-01 1974-03-15 Inventa Ag Verfahren zur abtrennung von lactamen aus schwefelsauren loesungen.
NL7308834A (pt) * 1973-06-26 1974-12-30

Also Published As

Publication number Publication date
FR2281358B1 (pt) 1979-05-11
US4021422A (en) 1977-05-03
ZA754886B (en) 1976-06-30
DD120651A5 (pt) 1976-06-20
ES439985A1 (es) 1977-05-16
IN141028B (pt) 1977-01-08
DE2534075A1 (de) 1976-02-19
AR203690A1 (es) 1975-09-30
FR2281358A1 (fr) 1976-03-05
GB1462740A (en) 1977-01-26
NL7410450A (nl) 1976-02-09
IT1041133B (it) 1980-01-10
BE832114A (nl) 1976-02-05
AU8365075A (en) 1977-02-10
JPS5141377A (en) 1976-04-07

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