GB939152A - Process for the production of c-alkyl substituted caprolactams - Google Patents

Process for the production of c-alkyl substituted caprolactams

Info

Publication number
GB939152A
GB939152A GB8437/62A GB843762A GB939152A GB 939152 A GB939152 A GB 939152A GB 8437/62 A GB8437/62 A GB 8437/62A GB 843762 A GB843762 A GB 843762A GB 939152 A GB939152 A GB 939152A
Authority
GB
United Kingdom
Prior art keywords
alkyl substituted
carboxylic acid
cyclohexane carboxylic
nitrosylating agent
fuming sulphuric
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
GB8437/62A
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.)
Chemische Werke Witten GmbH
Original Assignee
Chemische Werke Witten GmbH
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 Chemische Werke Witten GmbH filed Critical Chemische Werke Witten GmbH
Publication of GB939152A publication Critical patent/GB939152A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/78—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with alkali- or alkaline earth metals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
    • C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
    • C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
    • C01B3/40—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
    • C01B2203/10—Catalysts for performing the hydrogen forming reactions
    • C01B2203/1041—Composition of the catalyst
    • C01B2203/1047—Group VIII metal catalysts
    • C01B2203/1052—Nickel or cobalt catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Hydrogenated Pyridines (AREA)

Abstract

C-alkyl substituted e -caprolactams are produced by reacting an alkyl substituted cyclohexane carboxylic acid or a functional derivative thereof with 0.5 to 0.9. moles of a nitrosylating agent at a temperature below 100 DEG C. in the presence of fuming sulphuric acid and an inert diluent boiling at about the reaction temperature, the nitrosylating agent being added to the alkyl substituted cyclohexane carboxylic acid at such a rate that it is substantially consumed immediately on addition thereto. The reaction may be performed at 80 DEG C. The alkyl substituted cyclohexane carboxylic acid may be 4-methyl cyclohexane carboxylic acid, and the inert diluent is cyclohexane. The fuming sulphuric acid may contain from 10 to 20% excess sulphur trioxide and the nitrosylating agent may be nitrosyl sulphate or a compound forming it in the presence of fuming sulphuric acid. Other examples of reactants are given. The product may be recovered by neutralising the reaction mixture, diluting with water and then extracting with a solvent, e.g. chloroform.
GB8437/62A 1961-03-04 1962-03-05 Process for the production of c-alkyl substituted caprolactams Expired GB939152A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC23572A DE1185191B (en) 1961-03-04 1961-03-04 Process for the production of C-alkyl-ªŠ-caprolactams

Publications (1)

Publication Number Publication Date
GB939152A true GB939152A (en) 1963-10-09

Family

ID=7017470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8437/62A Expired GB939152A (en) 1961-03-04 1962-03-05 Process for the production of c-alkyl substituted caprolactams

Country Status (4)

Country Link
BE (1) BE614625A (en)
CH (1) CH428736A (en)
DE (1) DE1185191B (en)
GB (1) GB939152A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1238981A (en) * 1958-09-18 1960-08-19 Snia Viscosa Process for preparing caprolactam

Also Published As

Publication number Publication date
CH428736A (en) 1967-01-31
DE1185191B (en) 1965-01-14
BE614625A (en) 1962-07-02

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