GB1107478A - Improvements in or relating to the production of unsaturated aliphatic acids - Google Patents

Improvements in or relating to the production of unsaturated aliphatic acids

Info

Publication number
GB1107478A
GB1107478A GB4160466A GB4160466A GB1107478A GB 1107478 A GB1107478 A GB 1107478A GB 4160466 A GB4160466 A GB 4160466A GB 4160466 A GB4160466 A GB 4160466A GB 1107478 A GB1107478 A GB 1107478A
Authority
GB
United Kingdom
Prior art keywords
molybdenum
composition
antimony
molecular oxygen
heating
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
GB4160466A
Inventor
Edward James Gasson
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co Ltd
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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB4160466A priority Critical patent/GB1107478A/en
Publication of GB1107478A publication Critical patent/GB1107478A/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
    • B01J23/85—Chromium, molybdenum or tungsten
    • B01J23/88—Molybdenum
    • B01J23/881—Molybdenum and iron

Abstract

Acrylic or methacrylic acids are prepared by reacting acrolein or methacrolein at elevated temperature in the vapour phase with molecular oxygen over an oxide composition containing antimony, molybdenum, vanadium and iron as catalyst. The composition is prepared by heating components excluding molybdenum in a molecular oxygen containing gas at between 700 DEG and 900 DEG C., adding the molybdenum and heating the resultant composition in a molecular oxygen-containing gas at between 500 DEG and 900 DEG C. The molybdenum may be added as oxide or as ammonium molybdate or molybdic acid. Additional metals such as tin, nickel, cobalt, chromium, manganese or titanium may also be present and the composition may be upon supports such as alumina, pumice, silica, or titania.ALSO:Catalyst compositions for the oxidation of acrolein a methacrolein to acrylic or methacrylic acids, comprise antimony, molybdenum, vanadium and iron and are prepared by forming a primary composition containing all the components except molybdenum, heating the primary composition in a molecular oxygen containing gas at a temperature between 700 and 900 DEG C., adding the molybdenum and heating the resulting composition in a molecular oxygen containing gas at between 500 and 900 DEG C. The molybdenum may be added in the form of an oxide or heat decomposable compound such as ammonium molybdate a molybdic acid. Preferred atomic ratios are antimony to vanadium, 2:1 to 5:1; antimony to molybdenum, 1:1 to 1:5; and antimony to iron 2:1 to 16:1 and additional metal components are tin, nickel, cobalt, chromium, manganese or titanium. Supports of the catalysts may be alumina, pumice, silica or titania.
GB4160466A 1965-11-10 1965-11-10 Improvements in or relating to the production of unsaturated aliphatic acids Expired GB1107478A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4160466A GB1107478A (en) 1965-11-10 1965-11-10 Improvements in or relating to the production of unsaturated aliphatic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4160466A GB1107478A (en) 1965-11-10 1965-11-10 Improvements in or relating to the production of unsaturated aliphatic acids

Publications (1)

Publication Number Publication Date
GB1107478A true GB1107478A (en) 1968-03-27

Family

ID=10420466

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4160466A Expired GB1107478A (en) 1965-11-10 1965-11-10 Improvements in or relating to the production of unsaturated aliphatic acids

Country Status (1)

Country Link
GB (1) GB1107478A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985680A (en) * 1971-08-30 1976-10-12 Celanese Corporation Oxidation catalyst

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3985680A (en) * 1971-08-30 1976-10-12 Celanese Corporation Oxidation catalyst

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