GB903944A - Manufacture of pyruvic acid esters - Google Patents

Manufacture of pyruvic acid esters

Info

Publication number
GB903944A
GB903944A GB43867/60A GB4386760A GB903944A GB 903944 A GB903944 A GB 903944A GB 43867/60 A GB43867/60 A GB 43867/60A GB 4386760 A GB4386760 A GB 4386760A GB 903944 A GB903944 A GB 903944A
Authority
GB
United Kingdom
Prior art keywords
esters
catalyst
oxygen
sintered alumina
pyruvic
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
GB43867/60A
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.)
Pfizer Inc
Original Assignee
Pfizer Inc
Charles Pfizer and Co 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 Pfizer Inc, Charles Pfizer and Co Inc filed Critical Pfizer Inc
Publication of GB903944A publication Critical patent/GB903944A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
    • C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
    • C07C69/716—Esters of keto-carboxylic acids or aldehydo-carboxylic acids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

A catalyst for the oxidation of lactic esters to pyruvic esters (see Group IV(b)) comprises iron oxide and molybdenum oxide supported on sintered alumina. The catalyst may be prepared by a series of impregnations of the sintered alumina with a solution containing iron and molybdenum salts (e.g. ferric ammonium oxalate tetrahydrate and ammonium molybdate tetrahydrate) and drying first at 125 DEG -130 DEG C. and then at 250 DEG -260 DEG C. after each impregnation. After use, the catalyst may be regenerated by heating at 350 DEG -400 DEG C. in the presence of oxygen generally as air. U.S.A. Specification 2,849,493 is referred to.ALSO:Pyruvic esters are obtained by the vapourphase oxidation of a lactic ester in the presence of an oxygen-containing gas and an iron oxide-molybdenum oxide catalyst supported on sintered alumina (see Group III) at 180-300 DEG C. The oxygen-containing gas may be air and which may be diluted with an equal volume of nitrogen or other inert gas. Specified esters which may be prepared are alkyl, aryl and aralkyl esters.
GB43867/60A 1960-02-01 1960-12-21 Manufacture of pyruvic acid esters Expired GB903944A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US560260A 1960-02-01 1960-02-01

Publications (1)

Publication Number Publication Date
GB903944A true GB903944A (en) 1962-08-22

Family

ID=21716700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43867/60A Expired GB903944A (en) 1960-02-01 1960-12-21 Manufacture of pyruvic acid esters

Country Status (1)

Country Link
GB (1) GB903944A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002726A1 (en) * 1988-09-07 1990-03-22 Kabivitrum Ab Alternative energy substrate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990002726A1 (en) * 1988-09-07 1990-03-22 Kabivitrum Ab Alternative energy substrate
EP0366632A1 (en) * 1988-09-07 1990-05-02 Kabivitrum Ab Alternative energy substrates

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