ES381711A1 - Catalyst for the preparation of pyromelitic acid and procedure for its preparation. (Machine-translation by Google Translate, not legally binding) - Google Patents

Catalyst for the preparation of pyromelitic acid and procedure for its preparation. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES381711A1
ES381711A1 ES381711A ES381711A ES381711A1 ES 381711 A1 ES381711 A1 ES 381711A1 ES 381711 A ES381711 A ES 381711A ES 381711 A ES381711 A ES 381711A ES 381711 A1 ES381711 A1 ES 381711A1
Authority
ES
Spain
Prior art keywords
preparation
catalyst
translation
procedure
machine
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
ES381711A
Other languages
Spanish (es)
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.)
Prolizenz AG
Original Assignee
Prolizenz 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 Prolizenz AG filed Critical Prolizenz AG
Publication of ES381711A1 publication Critical patent/ES381711A1/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
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • 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
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14—Phosphorus; Compounds thereof
    • B01J27/186—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J27/195—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with vanadium, niobium or tantalum
    • B01J27/198—Vanadium
    • B01J27/199—Vanadium with chromium, molybdenum, tungsten or polonium
    • 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
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts

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)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Catalyst for the preparation of pyromellitic acid and procedure for its preparation; which is carried out by oxidation of 1,2,4,5, tetra-alkyl-benzo by oxygen which is obtained by impregnating a porous support with a solution of the component parts of the catalyst and the following calcination, the same containing both Vanadium and tungsten compounds characterized by a content, stoichiometrically expressed as parts by weight, of oxides of 0.1-5% tungstic acid (WO3), 0.5-10% vanadium pentoxide 0.1-2 % anhydrous phosphoric acid and 0.1 - 2% sodium acid based on the weight of the support. (Machine-translation by Google Translate, not legally binding)
ES381711A 1969-07-16 1970-07-11 Catalyst for the preparation of pyromelitic acid and procedure for its preparation. (Machine-translation by Google Translate, not legally binding) Expired ES381711A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1090069A CH521162A (en) 1969-07-16 1969-07-16 Catalyst for the oxidation of alkylbenzenes and process for its preparation

Publications (1)

Publication Number Publication Date
ES381711A1 true ES381711A1 (en) 1972-11-16

Family

ID=4368004

Family Applications (1)

Application Number Title Priority Date Filing Date
ES381711A Expired ES381711A1 (en) 1969-07-16 1970-07-11 Catalyst for the preparation of pyromelitic acid and procedure for its preparation. (Machine-translation by Google Translate, not legally binding)

Country Status (8)

Country Link
JP (1) JPS507558B1 (en)
BE (1) BE753407A (en)
CH (1) CH521162A (en)
DE (1) DE2032339A1 (en)
ES (1) ES381711A1 (en)
FR (1) FR2055221A5 (en)
NL (1) NL7009646A (en)
ZA (1) ZA704719B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS521734A (en) * 1975-06-24 1977-01-07 Sasakura Eng Co Ltd Heat recovering method

Also Published As

Publication number Publication date
JPS507558B1 (en) 1975-03-26
FR2055221A5 (en) 1971-05-07
BE753407A (en) 1970-12-16
NL7009646A (en) 1971-01-19
ZA704719B (en) 1971-09-29
DE2032339A1 (en) 1971-03-18
CH521162A (en) 1972-04-15

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