GB735300A - Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof - Google Patents

Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof

Info

Publication number
GB735300A
GB735300A GB9514/52A GB951452A GB735300A GB 735300 A GB735300 A GB 735300A GB 9514/52 A GB9514/52 A GB 9514/52A GB 951452 A GB951452 A GB 951452A GB 735300 A GB735300 A GB 735300A
Authority
GB
United Kingdom
Prior art keywords
zinc
cadmium
acid
oxide
chromite
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
GB9514/52A
Inventor
David Gwyn Jones
Peter Smith
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB9514/52A priority Critical patent/GB735300A/en
Publication of GB735300A publication Critical patent/GB735300A/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
    • B01J23/84—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 arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/86—Chromium
    • B01J23/862—Iron and chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/20—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms
    • C07C1/207—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms from carbonyl compounds
    • C07C1/2078—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as heteroatoms from carbonyl compounds by a transformation in which at least one -C(=O)-O- moiety is eliminated
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of zinc, cadmium or mercury
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/24—Chromium, molybdenum or tungsten
    • C07C2523/26—Chromium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/74—Iron group metals
    • C07C2523/745—Iron
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
    • C07C2523/80—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36 with zinc, cadmium or mercury
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2523/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00
    • C07C2523/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper
    • C07C2523/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36
    • C07C2523/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group C07C2521/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups C07C2523/02 - C07C2523/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • C07C2523/85—Chromium, molybdenum or tungsten
    • C07C2523/86—Chromium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Aromatic hydrocarbons or substituted derivatives thereof are produced by continuously contacting benzoic acid or a substituted benzoic acid in vapour phase with a catalyst comprising one or more oxides of Cd, Cu, Zn, Cr and Fe at 320-450 DEG C. The substituted benzoic acid used may contain alkyl, halogen, amine, hydroxy, nitro or acyl groups. Examples are salicyclic acid and p-bromo, o-amino-, p-nitro-, and o-benzoyl-benzoic acids. Preferred catalysts are cadmium oxide, cadmium, zinc, zinc-cadmium and zinc-iron chromites, copper oxide-zinc oxide, and cadmium oxide-zinc oxide. The acid may be dissolved in an inert solvent such as the product of the reaction and the solution vaporized and fed at a rate of 1.55-20.8 mols. per hour per 1. of catalyst space. An inert carrier gas such as nitrogen, hydrogen or carbon dioxide, which may be recycled exit gas, is generally used. Pressure is suitably about atmospheric. In examples (1) benzoic acid in toluene is vaporized and passed in a stream of nitrogen over cadmium oxide, zinc-iron chromite or cadmium chromite at 400 DEG C.; (2) zinc-iron chromite is used to convert o-toluic acid to toluene, salicylic acid to phenol, o-amino- and p-nitro-benzoic acids to aniline, and p-brom-, o-chlor-, and o-benzoyl-benzoic acids to benzene. The Provisional Specification refers to naphthoic acids and cinnamic acid as suitable starting materials.ALSO:Zinc-iron chromite catalyst having an atomic ratio Zn : Fe : Cr of 80 : 20 : 100 is made by treating with ammonia an aqueous solution of zinc nitrate, ferric nitrate and chromium trioxide, drying the precipitate, calcining at 350 DEG C., granulating, and pelleting after adding graphite. Before use it is reduced in hydrogen at 400 DEG C. Cadmium chromite, atomic ratio Cd : Cr of 1 : 1, is made by treating the aqueous nitrates with aqueous sodium bicarbonate, calcining the precipitate at 400 DEG C., and pelleting with graphite.
GB9514/52A 1952-04-16 1952-04-16 Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof Expired GB735300A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9514/52A GB735300A (en) 1952-04-16 1952-04-16 Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9514/52A GB735300A (en) 1952-04-16 1952-04-16 Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof

Publications (1)

Publication Number Publication Date
GB735300A true GB735300A (en) 1955-08-17

Family

ID=9873428

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9514/52A Expired GB735300A (en) 1952-04-16 1952-04-16 Improvements in and relating to the production of aromatic hydrocarbons and derivatives thereof

Country Status (1)

Country Link
GB (1) GB735300A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061651A (en) * 1961-02-20 1962-10-30 Dow Chemical Co Manufacture of phenols by decarboxylation of salicylic acids
CN103467224A (en) * 2013-09-13 2013-12-25 浙江大学 Aromatic carboxylic acid decarboxylastion method
CN103467237A (en) * 2013-09-13 2013-12-25 浙江大学 Method for preparing aromatic hydrocarbons by catalytic decarboxylation of terephthalic acid residues

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061651A (en) * 1961-02-20 1962-10-30 Dow Chemical Co Manufacture of phenols by decarboxylation of salicylic acids
CN103467224A (en) * 2013-09-13 2013-12-25 浙江大学 Aromatic carboxylic acid decarboxylastion method
CN103467237A (en) * 2013-09-13 2013-12-25 浙江大学 Method for preparing aromatic hydrocarbons by catalytic decarboxylation of terephthalic acid residues
CN103467224B (en) * 2013-09-13 2015-11-11 浙江大学 A kind of Aromatic carboxylic acid decarboxylastion
CN103467237B (en) * 2013-09-13 2016-03-30 浙江大学 Terephthalic acid residue catalytic decarboxylation prepares the method for aromatic hydrocarbons

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