GB941293A - Production of phthalic anhydride by catalytic oxidation and a catalyst therefor - Google Patents

Production of phthalic anhydride by catalytic oxidation and a catalyst therefor

Info

Publication number
GB941293A
GB941293A GB1569062A GB1569062A GB941293A GB 941293 A GB941293 A GB 941293A GB 1569062 A GB1569062 A GB 1569062A GB 1569062 A GB1569062 A GB 1569062A GB 941293 A GB941293 A GB 941293A
Authority
GB
United Kingdom
Prior art keywords
phthalic anhydride
catalyst
production
carrier
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
GB1569062A
Inventor
Helmut Nonnenmacher
Konstantin Andrussow
Max Appl
Anton Feinauer
Juergen Haug
Alfred Helms
Klaus Wiebusch
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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
Priority claimed from DEB62309A external-priority patent/DE1162348B/en
Priority claimed from DEB62310A external-priority patent/DE1144707B/en
Priority claimed from DE1961B0064169 external-priority patent/DE1169912B/en
Priority claimed from DEB64993A external-priority patent/DE1148225B/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB941293A publication Critical patent/GB941293A/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
    • C07C51/21—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
    • 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
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
    • B01J27/198—Vanadium
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Furan Compounds (AREA)
  • Catalysts (AREA)

Abstract

A catalyst including V2O5, Na2S2O7\t and K2S2O7 on a carrier having special physical properties e.g. SiO2 is used as a fluidised bed in the oxidation of naphthalene or o-xylene to phthalic anhydride. Examples describe the formation also of maleic anhydride and naphthaquinone as by-products. The reaction is carried out at 250-420 DEG C.ALSO:In a process for the production of phthalic anhydride from o-xylene or from naphthalene by oxidation with gases containing oxygen in molecular form, at a temperature of 250 DEG C.-420 DEG C. by the use of V2O5-alkali pyrosulphate catalysts on carrier material in a fluidized bed there is used a catalyst which comprises V2 O5, Na2 S2 O7 and K2 S2 O7, the melting point of the mixture being lower than that of K2 S2 O7, and a highly porous carrier material, especially silica gel, aluminium phosphate, synthetic or natural silicates and active carbon, having an inner surface of 200-400 sq. metres/gm. and a grain size of 10-3000 microns, the active substance being contained in the pores of the carrier in fused form under the reaction conditions. Optional catalyst constituents include H2 MoO4, P2 O5 and H2 Wo4. Examples are given.
GB1569062A 1961-04-28 1962-04-25 Production of phthalic anhydride by catalytic oxidation and a catalyst therefor Expired GB941293A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DEB62309A DE1162348B (en) 1961-04-28 1961-04-28 Process for the production of phthalic anhydride
DEB62310A DE1144707B (en) 1961-04-28 1961-04-28 Process for the production of phthalic anhydride
DE1961B0064169 DE1169912B (en) 1961-04-28 1961-04-28 Process for the production of phthalic anhydride
DEB64993A DE1148225B (en) 1961-11-30 1961-11-30 Process for the production of phthalic anhydride

Publications (1)

Publication Number Publication Date
GB941293A true GB941293A (en) 1963-11-06

Family

ID=27436606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1569062A Expired GB941293A (en) 1961-04-28 1962-04-25 Production of phthalic anhydride by catalytic oxidation and a catalyst therefor

Country Status (1)

Country Link
GB (1) GB941293A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192087A1 (en) * 1972-07-12 1974-02-08 Bayer Ag
US6358165B1 (en) 1988-04-15 2002-03-19 Benetton Sportsystem Usa, Inc. Throatless squash racquet
CN113956223A (en) * 2021-11-03 2022-01-21 东华大学 Preparation method of monochlorophthalic anhydride

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2192087A1 (en) * 1972-07-12 1974-02-08 Bayer Ag
US6358165B1 (en) 1988-04-15 2002-03-19 Benetton Sportsystem Usa, Inc. Throatless squash racquet
CN113956223A (en) * 2021-11-03 2022-01-21 东华大学 Preparation method of monochlorophthalic anhydride

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