CS215078B2 - Method of making the lactams - Google Patents

Method of making the lactams Download PDF

Info

Publication number
CS215078B2
CS215078B2 CS723130A CS313072A CS215078B2 CS 215078 B2 CS215078 B2 CS 215078B2 CS 723130 A CS723130 A CS 723130A CS 313072 A CS313072 A CS 313072A CS 215078 B2 CS215078 B2 CS 215078B2
Authority
CS
Czechoslovakia
Prior art keywords
solution
sulfuric acid
zone
sulfur dioxide
sulphate
Prior art date
Application number
CS723130A
Other languages
Czech (cs)
English (en)
Inventor
Rooij Abraham H De
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 CS215078B2 publication Critical patent/CS215078B2/cs

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D201/00Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02Preparation of lactams
    • C07D201/04Preparation of lactams from or via oximes by Beckmann rearrangement
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D201/00Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Hydrogenated Pyridines (AREA)
CS723130A 1971-05-07 1972-05-10 Method of making the lactams CS215078B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7106341.A NL162375C (nl) 1971-05-07 1971-05-07 Verbeterde werkwijze voor de bereiding en winning van lactamen.

Publications (1)

Publication Number Publication Date
CS215078B2 true CS215078B2 (en) 1982-07-30

Family

ID=19813109

Family Applications (1)

Application Number Title Priority Date Filing Date
CS723130A CS215078B2 (en) 1971-05-07 1972-05-10 Method of making the lactams

Country Status (8)

Country Link
BR (1) BR7202828D0 (pl)
CS (1) CS215078B2 (pl)
GB (1) GB1342460A (pl)
HU (1) HU170331B (pl)
NL (1) NL162375C (pl)
PL (1) PL81746B1 (pl)
TR (1) TR17114A (pl)
ZA (1) ZA722936B (pl)

Also Published As

Publication number Publication date
NL162375B (nl) 1979-12-17
BR7202828D0 (pt) 1973-05-17
NL7106341A (pl) 1972-11-09
TR17114A (tr) 1974-04-25
ZA722936B (en) 1973-02-28
PL81746B1 (en) 1975-08-30
NL162375C (nl) 1980-05-16
HU170331B (pl) 1977-05-28
GB1342460A (en) 1974-01-03

Similar Documents

Publication Publication Date Title
ITMI20130847A1 (it) Metodo e sistema per il recupero di solfato di ammonio da un flusso gassoso di un impianto urea
EP0238575B1 (de) Verfahren zur gewinnung von vanillin
JPH02303591A (ja) 排出液から硝酸塩及び/又は有機汚染物質の除去法
US3852273A (en) Process for preparing and recovering lactams
US4054562A (en) Process for the manufacture of lactams
US3852272A (en) Process for removing lactams
DE2110036C3 (de) Verfahren zur Spaltung von Ammoniumsulfat
JP2010163319A (ja) 硫安の製造方法
SU814272A3 (ru) Способ получени фосфорнойКиСлОТы
US4140685A (en) Process for recovering ε-caprolactam from an ε-caprolactam/sulfuric acid reaction mixture
CA1066700A (en) Process for preparing lactams
US4081442A (en) Process for the recovery of ε-caprolactam from a reaction mixture of ε-caprolactam and sulphuric acid
DE1956905C3 (de) Kreislaufverfahren zur Herstellung von Ketoximen
US4133810A (en) Process for the recovery of ε-caprolactam from a reaction mixture of ε-caprolactam and sulfuric acid
US4153600A (en) Process for the recovery of ε-caprolactam from a distillation residue containing ε-caprolactam
US3879380A (en) Process for recovery of lactam
DE2508247A1 (de) Verfahren zur herstellung von cyclohexanonoxim
US2737511A (en) Extraction of lactam
US3133055A (en) Production ofcaprolactam
PL81746B1 (en) Process for preparing and recovering lactams[gb1342460a]
DE543555C (de) Verfahren zur Darstellung von Thioharnstoff
US3002996A (en) Process for the preparation of dry oximes
DE69902864T2 (de) Methode zur Herstellung von Hydroxylaminsulfat in dem konventionellen Verfahren zur Synthese von Kaprolactam
GB667075A (en) An improved process for the manufacture of lactams
DE2541824A1 (de) Thermochemische verfahren zur erzeugung von wasserstoff aus wasser