DE2538992C3 - Verfahren zur Herstellung von Lactamen - Google Patents

Verfahren zur Herstellung von Lactamen

Info

Publication number
DE2538992C3
DE2538992C3 DE2538992A DE2538992A DE2538992C3 DE 2538992 C3 DE2538992 C3 DE 2538992C3 DE 2538992 A DE2538992 A DE 2538992A DE 2538992 A DE2538992 A DE 2538992A DE 2538992 C3 DE2538992 C3 DE 2538992C3
Authority
DE
Germany
Prior art keywords
ammonia
alkaline earth
earth metal
sulfate
production
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.)
Expired
Application number
DE2538992A
Other languages
German (de)
English (en)
Other versions
DE2538992A1 (de
DE2538992B2 (de
Inventor
Bruno Dipl.-Ing. Dr. Domeisen
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.)
INVENTA AG 8006 ZUERICH CH
Original Assignee
INVENTA AG 8006 ZUERICH CH
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 INVENTA AG 8006 ZUERICH CH filed Critical INVENTA AG 8006 ZUERICH CH
Publication of DE2538992A1 publication Critical patent/DE2538992A1/de
Publication of DE2538992B2 publication Critical patent/DE2538992B2/de
Application granted granted Critical
Publication of DE2538992C3 publication Critical patent/DE2538992C3/de
Expired 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
    • C07D201/02—Preparation of lactams
    • C07D201/04—Preparation of lactams from or via oximes by Beckmann rearrangement

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Hydrogenated Pyridines (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
DE2538992A 1974-09-03 1975-09-02 Verfahren zur Herstellung von Lactamen Expired DE2538992C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1192674A CH593934A5 (US08063081-20111122-C00044.png) 1974-09-03 1974-09-03

Publications (3)

Publication Number Publication Date
DE2538992A1 DE2538992A1 (de) 1976-03-11
DE2538992B2 DE2538992B2 (de) 1981-07-16
DE2538992C3 true DE2538992C3 (de) 1982-07-22

Family

ID=4378230

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2538992A Expired DE2538992C3 (de) 1974-09-03 1975-09-02 Verfahren zur Herstellung von Lactamen

Country Status (6)

Country Link
US (1) US3991047A (US08063081-20111122-C00044.png)
JP (1) JPS6020378B2 (US08063081-20111122-C00044.png)
CA (1) CA1066700A (US08063081-20111122-C00044.png)
CH (1) CH593934A5 (US08063081-20111122-C00044.png)
DE (1) DE2538992C3 (US08063081-20111122-C00044.png)
GB (1) GB1500084A (US08063081-20111122-C00044.png)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7601061A (nl) * 1976-02-03 1977-08-05 Stamicarbon Werkwijze voor het winnen van epsilon-caprolac- tam uit een epsilon-caprolactamzwavelzuur-reac- tiemengsel.
JPS5373578A (en) * 1976-12-14 1978-06-30 Toray Ind Inc Continuous purification of alpha-amino-epsilon-caprolactam
DE2708919C2 (de) * 1977-03-02 1982-05-27 Dr. C. Otto & Comp. Gmbh, 4630 Bochum Verfahren zur Reinigung von SO↓2↓-haltigen Industrieabgasen
NL7704481A (nl) * 1977-04-25 1977-08-31 Stamicarbon Werkwijze voor het winnen van ammoniak en zwavel- dioxide uit verontreinigd ammoniumzout van zwavel- zuur.
US5498790A (en) * 1993-06-09 1996-03-12 Novus International, Inc. Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture
US7022844B2 (en) 2002-09-21 2006-04-04 Honeywell International Inc. Amide-based compounds, production, recovery, purification and uses thereof
EP3568389B1 (en) * 2017-12-15 2021-01-20 Aquafilslo D.O.O. Process for the purification of caprolactam from a solution of crude caprolactam without organic solvent extraction

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2221369A (en) * 1940-11-12 Process foe producing lactams
US2182078A (en) * 1936-09-28 1939-12-05 American Smelting Refining Production of ammonia from ammonium sulphate
US2313026A (en) * 1939-02-13 1943-03-02 Schlack Paul Process for the manufacture of lactams from oximes of cyclic ketones
BE502247A (US08063081-20111122-C00044.png) * 1950-04-04
US2781245A (en) * 1952-09-18 1957-02-12 Allied Chem & Dye Corp Process of recovering ammonia from ammoniacal liquors
US3282646A (en) * 1963-12-03 1966-11-01 Allied Chem Production of sulfur dioxide
NL164028C (nl) * 1971-05-07 1980-11-17 Stamicarbon Werkwijze voor de afscheiding van lactamen.
US3852273A (en) * 1971-05-07 1974-12-03 Stamicarbon Process for preparing and recovering lactams
BE790083A (fr) * 1971-10-14 1973-04-13 Chemie Linz Ag Procede de production de clinker de ciment et de dioxyde de soufre

Also Published As

Publication number Publication date
DE2538992A1 (de) 1976-03-11
JPS6020378B2 (ja) 1985-05-21
CA1066700A (en) 1979-11-20
GB1500084A (en) 1978-02-08
JPS5152187A (US08063081-20111122-C00044.png) 1976-05-08
US3991047A (en) 1976-11-09
DE2538992B2 (de) 1981-07-16
CH593934A5 (US08063081-20111122-C00044.png) 1977-12-30

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Legal Events

Date Code Title Description
8227 New person/name/address of the applicant

Free format text: INVENTA AG, 8006 ZUERICH, CH

C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee