GB968056A - A process for preparing unsaturated monocarboxylic acids from olefins - Google Patents

A process for preparing unsaturated monocarboxylic acids from olefins

Info

Publication number
GB968056A
GB968056A GB15290/62A GB1529062A GB968056A GB 968056 A GB968056 A GB 968056A GB 15290/62 A GB15290/62 A GB 15290/62A GB 1529062 A GB1529062 A GB 1529062A GB 968056 A GB968056 A GB 968056A
Authority
GB
United Kingdom
Prior art keywords
acid
arsenic
phospho
catalyst
present
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
GB15290/62A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB968056A publication Critical patent/GB968056A/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
    • B01J27/188—Phosphorus; Compounds thereof with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium with chromium, molybdenum, tungsten or polonium
    • B01J27/19—Molybdenum
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene

Abstract

Unsaturated monocarboxylic acids are prepared by oxidising an olefine in the vapour phase in a single stage with molecular oxygen, in the presence as a catalyst of phospho-molybdic acid in admixture with arsenic or an arsenic containing compound. Propylene and/or isobutylene are converted to acrylic and methacrylic acids respectively and an inert diluent may be present. Arsenic may be present as oxide, arsenide, halogen or sulphur compounds or mixtures thereof, and part or all may be combined with molybdenum e.g. as arsenomolybdic acid. Other metals e.g. Fe, Cu, Pb, Co, Ni W, and Sb or oxides thereof may also be present. The catalyst may be supported on conventional carriers and in the form of a solid fixed bed, as a suspension, or as a fluid catalyst bed, and the process may be continuous. Examples describe the oxidation of propylene to give a mixture of acrylic acid, acrolein and minor amounts of acetic acid, acetaldehyde, maleic acid, acetone and oxides of carbon, which may be recycled to increase the acrylic acid yield. Specifications 822,140 and 939,713 are referred to.ALSO:An oxidation catalyst consists essentially of phospho-molybdic acid in admixture with arsenic or an arsenic-containing compound. The phospho-molybdic acid component may be made by reacting molybdenum trioxide on sodium molybdenum trioxide with phosphoric acid or may be the commercially available acid. The arsenic, preferably in the range 0,1-10%, may be in the form of oxide, acid, metallic arsenide, and halogen or sulphur compounds, or in combination with molybdenum. Metals, e.g. Fe, Cu, Pb, Co, Ni, W, may also be present together with fillers and/or carriers, such as aluminas, silica-alumina, or silicon carbides. Examples describe the preparation of the catalysts and the oxidation of olefines to unsaturated monocarboxylic acids. Specifications 822,140 and 939,713 are referred to.
GB15290/62A 1961-04-24 1962-04-19 A process for preparing unsaturated monocarboxylic acids from olefins Expired GB968056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US105031A US3190913A (en) 1961-04-24 1961-04-24 Vapor phase oxidation of propylene and butylene in the presence of an arsenic phosphomolybdate catalyst

Publications (1)

Publication Number Publication Date
GB968056A true GB968056A (en) 1964-08-26

Family

ID=22303679

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15290/62A Expired GB968056A (en) 1961-04-24 1962-04-19 A process for preparing unsaturated monocarboxylic acids from olefins

Country Status (3)

Country Link
US (1) US3190913A (en)
BE (1) BE616690A (en)
GB (1) GB968056A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE630896A (en) * 1962-04-10
US3321411A (en) * 1964-05-04 1967-05-23 Eastman Kodak Co Novel catalyst system for the synthesis of unsaturated nitriles
US3379652A (en) * 1967-04-28 1968-04-23 Eastman Kodak Co Arsenophosphomolybdic acid catalyst compositions and process for their preparation
US3686294A (en) * 1970-10-06 1972-08-22 Japanese Geon Co Ltd Process for the production of methacrylic acid

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2042220A (en) * 1934-04-18 1936-05-26 Shell Dev Catalytic oxidation of unsaturated alcohols
US2744928A (en) * 1952-11-28 1956-05-08 Shell Dev Oxidation of unsaturated aldehydes to acids
US2941007A (en) * 1957-06-10 1960-06-14 Standard Oil Co Process for the oxidation of olefins
US3065264A (en) * 1958-12-24 1962-11-20 Du Pont Vapor phase oxidation of propylene acrylic acid
GB903034A (en) * 1960-04-14 1962-08-09 Distillers Co Yeast Ltd The production of acrylic and methacrylic acids

Also Published As

Publication number Publication date
BE616690A (en) 1962-10-19
US3190913A (en) 1965-06-22

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