GB1083999A - Production of phthalic anhydride and catalysts suitable for use therein - Google Patents

Production of phthalic anhydride and catalysts suitable for use therein

Info

Publication number
GB1083999A
GB1083999A GB4940764A GB4940764A GB1083999A GB 1083999 A GB1083999 A GB 1083999A GB 4940764 A GB4940764 A GB 4940764A GB 4940764 A GB4940764 A GB 4940764A GB 1083999 A GB1083999 A GB 1083999A
Authority
GB
United Kingdom
Prior art keywords
support
less
coating
hours
drying
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
GB4940764A
Inventor
Joseph Lee Russell
Mitchell Becker
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.)
Halcon International Inc
Original Assignee
Halcon International Inc
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 Halcon International Inc filed Critical Halcon International Inc
Publication of GB1083999A publication Critical patent/GB1083999A/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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
    • B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
    • 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
    • B01J37/0201—Impregnation
    • 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
    • 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)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

O-xylene and/or naphthalene are oxidized to phthalic anhydride in the presence of air at 350-440 DEG C. using a catalyst comprising an oxide of a metal selected from Groups IV to VIII on a support which is prepared by coating the support with the metal salt at 90-200 DEG C for 1/2 -8 hours until the support is dry to touch and completing the drying by heating at 200-450 DEG C. in less than 90 minutes, the drying being commenced within 3 hours of the end of coating. Less than 1.5% of naphthaquinone is produced using a single pass reactor. An example describes the oxidation of naphthalene using V2O5 on SiC at 415 DEG C.ALSO:Oxidation catalysts are made by contacting one part of a Group IV - VII metal oxide as the corresponding metal salt solution with 5 to 20 parts of a support having a surface area of less than 1m2/gm., less than 5% of binder and a heat conductivity of at least 1.80 BTU/hr.sq.ft. DEG F/ft., coating the support with the metal salt at 90 - 200 DEG C for 1/2 to 8 hours and drying by heating from 200 to 450 DEG C in less than 90 minutes the final drying step being commenced within 3 hours of the end of the coating step. Specified oxides are those of V, Ti, Cr, Mo, W, U, Mn, Fe, Co, Ni. Specified supports are SiC, SiO2, Al2O3, MgO and ZrO2. Comparative examples are given.
GB4940764A 1961-09-11 1964-12-04 Production of phthalic anhydride and catalysts suitable for use therein Expired GB1083999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13700861A 1961-09-11 1961-09-11

Publications (1)

Publication Number Publication Date
GB1083999A true GB1083999A (en) 1967-09-20

Family

ID=10452235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4940764A Expired GB1083999A (en) 1961-09-11 1964-12-04 Production of phthalic anhydride and catalysts suitable for use therein

Country Status (3)

Country Link
DE (1) DE1206402B (en)
FR (1) FR1360166A (en)
GB (1) GB1083999A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113956223A (en) * 2021-11-03 2022-01-21 东华大学 Preparation method of monochlorophthalic anhydride

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2201127A1 (en) * 1972-09-28 1974-04-26 Ugine Kuhlmann Antimony, bismuth, tin or lead oxide catalysts - for producing phthalic anhydride by catalytic oxidation of o-xylene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113956223A (en) * 2021-11-03 2022-01-21 东华大学 Preparation method of monochlorophthalic anhydride

Also Published As

Publication number Publication date
FR1360166A (en) 1964-05-08
DE1206402B (en) 1965-12-09

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