GB1471895A - Process for preparing phthalic anhydride and catalyst for use in this process - Google Patents

Process for preparing phthalic anhydride and catalyst for use in this process

Info

Publication number
GB1471895A
GB1471895A GB1947274A GB1947274A GB1471895A GB 1471895 A GB1471895 A GB 1471895A GB 1947274 A GB1947274 A GB 1947274A GB 1947274 A GB1947274 A GB 1947274A GB 1471895 A GB1471895 A GB 1471895A
Authority
GB
United Kingdom
Prior art keywords
catalyst
tio
active material
phthalic anhydride
sio
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
GB1947274A
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.)
Standard Oil Co
Original Assignee
Standard Oil 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 Standard Oil Co filed Critical Standard Oil Co
Publication of GB1471895A publication Critical patent/GB1471895A/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
    • B01J23/847—Vanadium, niobium or tantalum or polonium
    • B01J23/8472—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
    • 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
    • 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
    • B01J23/24—Chromium, molybdenum or tungsten
    • 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)
  • Catalysts (AREA)
  • Furan Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1471895 Oxidation catalysts STANDARD OIL CO 3 May 197 [21 May 1973] 19472/74 Heading B1E [Also in Division C2] o-Phthalic anhydride is made by contacting a mixture comprising O 2 and o-xylene at 200-600‹C in the presence of a catalyst comprising. Catalysts comprise an inert support of at least 20 Ám coated on its outer surface with a catalytically active material comprising in which A is Fe, Cr, Ni, Co, Ti, Mn, Cu, Ag, Bi, Zn, Mo and/or W, D is B and/or Sb, a is 0-5, b is a positive number up to 10 and the vanadium is less than 10 wt % of the total catalyst. The active material may also comprise an inert diluent such as SiO 2 and TiO 2 . Examples describe the preparation use of W 1À32 Sb 2 B 3 V 12 O x , W 0À6 Sb 2 B 3 V 12 O x , B 3 V 12 O x + TiO 2 , Sb 2 B 3 V 12 O x + TiO 2 and Sb 2 B 3 V 12 O x + (ZrO 2 /CaO or SiO 2 ) on Al 2 O 3 . The active material is prepared in each case by reducing V 2 O 5 with W metal or hydrazine, adding the other oxides to the slurry and drying.
GB1947274A 1973-05-21 1974-05-03 Process for preparing phthalic anhydride and catalyst for use in this process Expired GB1471895A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36241273A 1973-05-21 1973-05-21

Publications (1)

Publication Number Publication Date
GB1471895A true GB1471895A (en) 1977-04-27

Family

ID=23426029

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1947274A Expired GB1471895A (en) 1973-05-21 1974-05-03 Process for preparing phthalic anhydride and catalyst for use in this process

Country Status (3)

Country Link
JP (1) JPS5014644A (en)
DE (1) DE2421702A1 (en)
GB (1) GB1471895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113354533A (en) * 2021-06-01 2021-09-07 中国科学技术大学 Method for preparing terephthalic acid by utilizing lignocellulose biomass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113354533A (en) * 2021-06-01 2021-09-07 中国科学技术大学 Method for preparing terephthalic acid by utilizing lignocellulose biomass
CN113354533B (en) * 2021-06-01 2024-03-29 中国科学技术大学 Method for preparing terephthalic acid by using lignocellulose biomass

Also Published As

Publication number Publication date
JPS5014644A (en) 1975-02-15
DE2421702A1 (en) 1974-12-19

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Legal Events

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