FR2146550A6 - Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate - Google Patents

Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate

Info

Publication number
FR2146550A6
FR2146550A6 FR7126278A FR7126278A FR2146550A6 FR 2146550 A6 FR2146550 A6 FR 2146550A6 FR 7126278 A FR7126278 A FR 7126278A FR 7126278 A FR7126278 A FR 7126278A FR 2146550 A6 FR2146550 A6 FR 2146550A6
Authority
FR
France
Prior art keywords
xylene
silicate
phthalic anhydride
catalyst
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
FR7126278A
Other languages
French (fr)
Inventor
Progil Rhone
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.)
Produits Chimiques Pechiney Saint Gobain
Original Assignee
Produits Chimiques Pechiney Saint Gobain
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 Produits Chimiques Pechiney Saint Gobain filed Critical Produits Chimiques Pechiney Saint Gobain
Priority to FR7126278A priority Critical patent/FR2146550A6/en
Priority to GB3792671A priority patent/GB1368626A/en
Priority to NLAANVRAGE7111378,A priority patent/NL173026C/en
Priority to YU02142/71A priority patent/YU214271A/en
Priority to US00174502A priority patent/US3843552A/en
Priority to CA121,345A priority patent/CA992972A/en
Priority to IT52479/71A priority patent/IT960539B/en
Priority to BE771772A priority patent/BE771772A/en
Priority to JP6483871A priority patent/JPS5323786B1/ja
Priority to DE2142838A priority patent/DE2142838C3/en
Application granted granted Critical
Publication of FR2146550A6 publication Critical patent/FR2146550A6/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
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • 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
    • 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)
  • Furan Compounds (AREA)
  • Catalysts (AREA)

Abstract

Catalyst for gaseous phase oxidation of o-xylene for phthalic anhydride production consists of a support impregnated with a silicate enamel and coated with a catalyst layer based on titanium and vanadium oxides. The support may be beads of fused refractory material bonded with a (boron silicate) coating of fusion point 800-1200 degrees C e.g. 20-60 wt.% SiO2, 3-15% Al2O3, 0.5-16% CaO, 1-15% K2O and Na2O and 2-40% B2O. Air and o-xylene are in molar ratio 69-130 and are heated at 360-445 degrees C. The catalyst has high activity and gives high yields with improved selectivity and is mechanically stronger than known catalysts.
FR7126278A 1970-08-26 1971-07-19 Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate Expired FR2146550A6 (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FR7126278A FR2146550A6 (en) 1971-07-19 1971-07-19 Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate
GB3792671A GB1368626A (en) 1970-08-26 1971-08-12 Catalyst for the oxidation of ortho-xylene to phthalic anhydride
NLAANVRAGE7111378,A NL173026C (en) 1970-08-26 1971-08-18 FORMED CATALYST FOR THE PREPARATION OF PHTALIC ACID ANHYDRIDE BY OXYDATION OF O-XYLENE IN THE GAS PHASE, AND A METHOD FOR PREPARING PHTALIC ACID ANHYDRIDE BY OXYDATION OF O-XYLENE USING THE USED SYSTEM.
YU02142/71A YU214271A (en) 1970-08-26 1971-08-20 Process for obtaining a catalyst for the oxidation of o-xylene in gas phase into the phthalic acid anhydride
US00174502A US3843552A (en) 1970-08-26 1971-08-24 Catalyst for oxidation of o-xylene
CA121,345A CA992972A (en) 1970-08-26 1971-08-25 Catalyst for oxidation of o-xylene and method
IT52479/71A IT960539B (en) 1970-08-26 1971-08-25 CATALYSTS FOR OXIDAZONE OF O. XYLENE IN PHTHALIC DIOXIDE
BE771772A BE771772A (en) 1970-08-26 1971-08-25 Catalysts for the oxidation of o-xylene to phthalic anhydride
JP6483871A JPS5323786B1 (en) 1970-08-26 1971-08-26
DE2142838A DE2142838C3 (en) 1970-08-26 1971-08-26 Oxidation catalyst containing vanadium oxide and titanium oxide and its use for the production of phthalic anhydride by oxidation of o-xylene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7126278A FR2146550A6 (en) 1971-07-19 1971-07-19 Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate

Publications (1)

Publication Number Publication Date
FR2146550A6 true FR2146550A6 (en) 1973-03-02

Family

ID=9080534

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7126278A Expired FR2146550A6 (en) 1970-08-26 1971-07-19 Oxidation of o-xylene - to phthalic anhydride using a catalyst support enamelled with a silicate

Country Status (1)

Country Link
FR (1) FR2146550A6 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417145A1 (en) * 1973-04-11 1974-10-24 Rhone Progil PROCESS FOR MANUFACTURING PHTHALIC ANHYDRIDE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2417145A1 (en) * 1973-04-11 1974-10-24 Rhone Progil PROCESS FOR MANUFACTURING PHTHALIC ANHYDRIDE

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