GB1409094A - Mixed oxide oxidation catalysts - Google Patents

Mixed oxide oxidation catalysts

Info

Publication number
GB1409094A
GB1409094A GB5380372A GB5380372A GB1409094A GB 1409094 A GB1409094 A GB 1409094A GB 5380372 A GB5380372 A GB 5380372A GB 5380372 A GB5380372 A GB 5380372A GB 1409094 A GB1409094 A GB 1409094A
Authority
GB
United Kingdom
Prior art keywords
dihydrate
vanadium
nov
mixed oxide
monohydrate
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
GB5380372A
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.)
Chevron USA Inc
Original Assignee
Chevron Research and Technology Co
Chevron Research 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 Chevron Research and Technology Co, Chevron Research Co filed Critical Chevron Research and Technology Co
Publication of GB1409094A publication Critical patent/GB1409094A/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
    • 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
    • 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
    • C07C51/215—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of saturated hydrocarbyl groups

Abstract

1409094 Oxidation catalyst CHEVRON RE SEARCH CO 21 Nov 1972 [22 Nov 1971] 53803/72 Heading B1E [Also in Division C2] Oxidation catalyst compositions comprising anhydrous mixed oxides of vanadium and pentavalent phosphorus are formed by multi-stage dehydration and calcination of the corresponding dihydrate. A dihydrate having a P:V atomic ratio of 1:1 to 2:1, wherein the vanadium has an average valence of 3.9 to 4.5 is heated at 370-394‹C under a flowing stream of oxygen containing gas to form the corresponding monohydrate. The monohydrate is then similarly calcined to give the anhydrous oxide either in two stages at 395-425‹C and 450 to 500‹C or in a single stage at 395-600‹C. The initial dihydrate is formed by precipitation from aqueous solution.
GB5380372A 1971-11-22 1972-11-21 Mixed oxide oxidation catalysts Expired GB1409094A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20072471A 1971-11-22 1971-11-22

Publications (1)

Publication Number Publication Date
GB1409094A true GB1409094A (en) 1975-10-08

Family

ID=22742923

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5380372A Expired GB1409094A (en) 1971-11-22 1972-11-21 Mixed oxide oxidation catalysts

Country Status (8)

Country Link
JP (1) JPS5620065B2 (en)
BE (1) BE791770A (en)
CA (1) CA973887A (en)
DE (1) DE2256909C2 (en)
FR (1) FR2160859B1 (en)
GB (1) GB1409094A (en)
IT (1) IT970977B (en)
NL (1) NL173364C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822322A1 (en) * 1977-05-23 1979-04-12 Ici Ltd PROCESS FOR THE PRODUCTION OF ACID ANHYDRIDES AND A CATALYST FOR THE PRODUCTION OF THE SAME AND USABLE CATALYSTS
CN115850214A (en) * 2022-12-28 2023-03-28 常州新日催化剂股份有限公司 Method for preparing maleic anhydride by oxidizing n-butane

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017521A (en) * 1972-06-19 1977-04-12 Chevron Research Company Process for the manufacture of maleic anhydride using high surface area catalyst
USB330354I5 (en) * 1973-02-07 1975-01-28
US4002650A (en) * 1973-12-10 1977-01-11 The Standard Oil Company (Ohio) Preparation of maleic anhydride from n-butane
CH598863A5 (en) * 1975-01-10 1978-05-12 Lonza Ag
US4178298A (en) 1976-05-21 1979-12-11 Lonza, Ltd. Process for preparing maleic anhydride
CH619870A5 (en) * 1976-05-21 1980-10-31 Lonza Ag
US5137860A (en) * 1991-06-27 1992-08-11 Monsanto Company Process for the transformation of vanadium/phosphorus mixed oxide catalyst precursors into active catalysts for the production of maleic anhydride

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2773838A (en) * 1951-05-01 1956-12-11 Atlantic Refining Co Production of maleic and alkyl substituted maleic anhydrides by catalytic oxidation
US3293268A (en) * 1964-03-23 1966-12-20 Princeton Chemical Res Inc Production of maleic anhydride by oxidation of n-butane

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2822322A1 (en) * 1977-05-23 1979-04-12 Ici Ltd PROCESS FOR THE PRODUCTION OF ACID ANHYDRIDES AND A CATALYST FOR THE PRODUCTION OF THE SAME AND USABLE CATALYSTS
US4209423A (en) 1977-05-23 1980-06-24 Imperial Chemical Industries Limited Production of acid anhydrides and catalysts therefor
CN115850214A (en) * 2022-12-28 2023-03-28 常州新日催化剂股份有限公司 Method for preparing maleic anhydride by oxidizing n-butane

Also Published As

Publication number Publication date
FR2160859B1 (en) 1978-03-03
BE791770A (en) 1973-05-22
DE2256909C2 (en) 1983-11-10
NL7215828A (en) 1973-05-24
IT970977B (en) 1974-04-20
JPS5620065B2 (en) 1981-05-11
NL173364C (en) 1984-01-16
FR2160859A1 (en) 1973-07-06
CA973887A (en) 1975-09-02
JPS4863982A (en) 1973-09-05
DE2256909A1 (en) 1973-05-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years