GB1476393A - Manufacture of phthalic anhydride - Google Patents

Manufacture of phthalic anhydride

Info

Publication number
GB1476393A
GB1476393A GB4308374A GB4308374A GB1476393A GB 1476393 A GB1476393 A GB 1476393A GB 4308374 A GB4308374 A GB 4308374A GB 4308374 A GB4308374 A GB 4308374A GB 1476393 A GB1476393 A GB 1476393A
Authority
GB
United Kingdom
Prior art keywords
phthalic anhydride
per cent
active
oct
amount
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
GB4308374A
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
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 BASF SE filed Critical BASF SE
Publication of GB1476393A publication Critical patent/GB1476393A/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
    • 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
    • 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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B01J37/0221—Coating of particles
    • B01J37/0223—Coating of particles by rotation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Furan Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1476393 Phthalic anhydride BASF AG 4 Oct 1974 [5 Oct 1973] 43083/74 Heading C2C Phthalic anhydride is made by oxidizing oxylene with O 2 or an O 2 -containing gas, at 370-500‹ C., in a tube bundle reactor, in the presence of a supported catalyst comprising an inert porous carrier having coated thereon, to a thickness of 0À05-1 mm., a catalytically active material containing 1-40 wt. per cent V 2 O 5 , and 60-99 wt. per cent TiO 2 , which active-material contains an amount X wt. per cent of Sb 2 O 3 , determined from the equation X = A x B - C, where A is the amount, in grams, of active-material on 7 ml. (bulk volume) carrier, B is the cross-sectional area, in cm.<SP>2</SP>, of the reactor tube and C is a number from 1-3.
GB4308374A 1973-10-05 1974-10-04 Manufacture of phthalic anhydride Expired GB1476393A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732350064 DE2350064A1 (en) 1973-10-05 1973-10-05 PROCESS FOR MANUFACTURING PHTHALIC ANHYDRIDE

Publications (1)

Publication Number Publication Date
GB1476393A true GB1476393A (en) 1977-06-10

Family

ID=5894615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4308374A Expired GB1476393A (en) 1973-10-05 1974-10-04 Manufacture of phthalic anhydride

Country Status (8)

Country Link
JP (1) JPS5062943A (en)
AT (1) AT338256B (en)
BE (1) BE820049A (en)
CA (1) CA1031356A (en)
DE (1) DE2350064A1 (en)
FR (1) FR2246558B1 (en)
GB (1) GB1476393A (en)
IT (1) IT1030680B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2547624C2 (en) * 1975-10-24 1981-10-08 Basf Ag, 6700 Ludwigshafen Supported catalysts containing vanadium pentoxide, titanium dioxide, antimony and rubidium

Also Published As

Publication number Publication date
JPS5062943A (en) 1975-05-29
FR2246558A1 (en) 1975-05-02
CA1031356A (en) 1978-05-16
DE2350064A1 (en) 1975-04-17
ATA799574A (en) 1976-12-15
BE820049A (en) 1975-03-18
IT1030680B (en) 1979-04-10
FR2246558B1 (en) 1979-06-01
AT338256B (en) 1977-08-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee