CH438259A - Verfahren zur katalytischen Oxydation von 1,2,4,5-Tetraalkylaromaten in der Gasphase - Google Patents

Verfahren zur katalytischen Oxydation von 1,2,4,5-Tetraalkylaromaten in der Gasphase

Info

Publication number
CH438259A
CH438259A CH1413564A CH1413564A CH438259A CH 438259 A CH438259 A CH 438259A CH 1413564 A CH1413564 A CH 1413564A CH 1413564 A CH1413564 A CH 1413564A CH 438259 A CH438259 A CH 438259A
Authority
CH
Switzerland
Prior art keywords
tetraalkylaromatics
gas phase
catalytic oxidation
catalytic
oxidation
Prior art date
Application number
CH1413564A
Other languages
German (de)
English (en)
Inventor
Dieter Dr Hoehr
Original Assignee
Gelsenberg Benzin 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
Application filed by Gelsenberg Benzin Ag filed Critical Gelsenberg Benzin Ag
Publication of CH438259A publication Critical patent/CH438259A/de

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
    • B01J23/16—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
    • 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)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)
CH1413564A 1963-11-14 1964-11-02 Verfahren zur katalytischen Oxydation von 1,2,4,5-Tetraalkylaromaten in der Gasphase CH438259A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG39168A DE1246707B (de) 1963-11-14 1963-11-14 Verfahren zur katalytischen Gasphasenoxydation von 1, 2, 4, 5-substituierten Dimethyldiisopropyl- und Trimethylisopropylbenzolen und Durol

Publications (1)

Publication Number Publication Date
CH438259A true CH438259A (de) 1967-06-30

Family

ID=7126078

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1413564A CH438259A (de) 1963-11-14 1964-11-02 Verfahren zur katalytischen Oxydation von 1,2,4,5-Tetraalkylaromaten in der Gasphase

Country Status (8)

Country Link
JP (1) JPS499451B1 (fr)
AT (1) AT250937B (fr)
BE (1) BE655686A (fr)
CH (1) CH438259A (fr)
DE (1) DE1246707B (fr)
FR (1) FR1415112A (fr)
GB (1) GB1081287A (fr)
NL (1) NL6413133A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5592177A (en) * 1978-12-30 1980-07-12 Matsushita Electric Works Ltd Instrument for generating circular motion
US5663114A (en) * 1993-10-22 1997-09-02 Nippon Shokubai Co., Ltd. Catalyst for production of pyromellitic anhydride and method for production of pyromellitic anhydride
JP2003055382A (ja) 2001-08-08 2003-02-26 Nippon Shokubai Co Ltd 無水ピロメリット酸の製造方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576625A (en) * 1947-10-08 1951-11-27 California Research Corp Production of polycarboxylic acid products
US2625555A (en) * 1947-10-08 1953-01-13 California Research Corp Production of aryl tetracarboxylic acid anhydrides

Also Published As

Publication number Publication date
AT250937B (de) 1966-12-12
DE1246707B (de) 1967-08-10
GB1081287A (en) 1967-08-31
NL6413133A (fr) 1965-05-17
JPS499451B1 (fr) 1974-03-05
BE655686A (fr) 1965-03-01
FR1415112A (fr) 1965-10-22

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