GB777132A - Improvements in oxidation catalysts - Google Patents

Improvements in oxidation catalysts

Info

Publication number
GB777132A
GB777132A GB26468/54A GB2646854A GB777132A GB 777132 A GB777132 A GB 777132A GB 26468/54 A GB26468/54 A GB 26468/54A GB 2646854 A GB2646854 A GB 2646854A GB 777132 A GB777132 A GB 777132A
Authority
GB
United Kingdom
Prior art keywords
per cent
catalyst
temperature
vanadate
oxidation
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
GB26468/54A
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.)
O Hommel Co
Original Assignee
O Hommel Co
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 O Hommel Co filed Critical O Hommel Co
Priority to GB26468/54A priority Critical patent/GB777132A/en
Priority to DEH21605A priority patent/DE1052402B/en
Publication of GB777132A publication Critical patent/GB777132A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/20—Vanadium, niobium or tantalum
    • B01J23/22—Vanadium
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
    • C07C46/04—Preparation of quinones by oxidation giving rise to quinoid structures of unsubstituted ring carbon atoms in six-membered aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Landscapes

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

Abstract

Aromatic or unsaturated hydrocarbons are oxidized in the vapour phase by means of air or oxygen in the presence of a catalyst prepared by fusing, at a temperature of 900-1500 DEG C., a mixture of 85-97 per cent of an oxide of tin, zirconium or titanium, 1-10 per cent of an inorganic vanadate, and 1-5 per cent of alumina (see Group III). Reference is made to the oxidation of naphthalene to phthalic anhydride at 400-500 DEG C. and atmospheric pressure, benzene to maleic acid or to quinol and quinone, anthracene to anthraquinone, and ortho-xylene, isobutylene and butene-1 to phthalic anhydride. Benzene may be oxidized at 450-500 DEG C. and a pressure of 2-10 atmospheres and toluene at a temperature of 375-400 DEG C. The air, which may be preheated to within at least 100 DEG C. of the reaction temperature, is preferably used in two to five times the theoretical amount. The catalyst may be used as a fixed bed or in the fluidized state.ALSO:A catalyst, particularly adapted for the oxidation of aromatic or unsaturated hydrocarbons (see Group IV(b)), consists of the product obtained by fusing, at a temperature of 900 DEG -1500 DEG C., a mixture of 85-97 per cent of an oxide of tin, zirconium, or titanium, 1-10 per cent of an inorganic vanadate, and 1-5 per cent of alumina. The vanadate specified is ammonium metavanadate. The fusion product may be pulverized and the catalyst used as a mixed bed or in the fluidized state.
GB26468/54A 1954-09-13 1954-09-13 Improvements in oxidation catalysts Expired GB777132A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB26468/54A GB777132A (en) 1954-09-13 1954-09-13 Improvements in oxidation catalysts
DEH21605A DE1052402B (en) 1954-09-13 1954-09-25 Catalyst for the vapor phase oxidation of unsaturated hydrocarbons with air

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB26468/54A GB777132A (en) 1954-09-13 1954-09-13 Improvements in oxidation catalysts
DEH21605A DE1052402B (en) 1954-09-13 1954-09-25 Catalyst for the vapor phase oxidation of unsaturated hydrocarbons with air

Publications (1)

Publication Number Publication Date
GB777132A true GB777132A (en) 1957-06-19

Family

ID=25979379

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26468/54A Expired GB777132A (en) 1954-09-13 1954-09-13 Improvements in oxidation catalysts

Country Status (2)

Country Link
DE (1) DE1052402B (en)
GB (1) GB777132A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1285117A (en) * 1917-02-17 1918-11-19 Harry D Gibbs Process for the manufacture of phthalic anhydrid, phthalic acid, benzoic acid, and naphthaquinones.
US2625554A (en) * 1949-07-01 1953-01-13 Monsanto Chemicals Manufacture of maleic anhydride

Also Published As

Publication number Publication date
DE1052402B (en) 1959-03-12

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