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GB836828A - Process for the manufacture of glyoxal - Google Patents

Process for the manufacture of glyoxal

Info

Publication number
GB836828A
GB836828A GB36141/56A GB3614156A GB836828A GB 836828 A GB836828 A GB 836828A GB 36141/56 A GB36141/56 A GB 36141/56A GB 3614156 A GB3614156 A GB 3614156A GB 836828 A GB836828 A GB 836828A
Authority
GB
United Kingdom
Prior art keywords
silver
oxide
pumice
deposited
mixture
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
GB36141/56A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB836828A publication Critical patent/GB836828A/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
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/8926—Copper and noble metals
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/48—Silver or gold
    • B01J23/50—Silver
    • 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
    • C07C45/37—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 >C—O—functional groups to >C=O groups
    • C07C45/38—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 >C—O—functional groups to >C=O groups being a primary hydroxyl group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Epoxy Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Catalysts used in the oxidation of ethylene glycol vapour to glyoxal comprise silver and/or silver oxide supported on a carrier. Suitable carriers are, for example, pumice, silica gel and aluminium oxide. Especially suitable catalysts are obtained by applying silver oxide, obtained from silver nitrate by addition of sodium hydroxide solution, to pumice in the presence of a solvent, removing the latter and reducing the silver oxide. Alternatively, a mixture of silver oxide and the silver salt of an organic acid, e.g. silver oxalate, may be applied to the carrier and the mixture heated. It is advantageous to add promoters, for example copper, copper oxide, copper salts or titanium oxide. In the examples, the following catalysts are used: (a) silver deposited as pumice; (b) silver oxide deposited on pumice; (c) a mixture of silver oxide and silver oxalate deposited on pumice, the mixture being heated to decompose the oxalate; (d) silver oxide, copper oxide and barium peroxide deposited as pumice and (e) silver oxide and barium peroxide deposited on pumice.ALSO:Glyoxal is prepared by oxidizing ethylene glycol vapour, in the absence of an inhibitor, with a mixture of air and nitrogen in the presence of a catalyst which consists of silver and/or silver oxide and is supported on a carrier. Suitable carriers are, for example, pumice, silica gel and aluminium oxide. It is advantageous to use a promoter, for example, copper salts or titanium oxide. The oxidation is effected generally at a temperature between 300 DEG and 450 DEG C. In the examples ethylene glycol in the vapour phase is oxidized with a mixture of air and nitrogen using as catalyst (a) silver deposited on pumice; (b) silver oxide deposited on pumice; (c) a mixture of silver oxide and silver oxalate deposited on pumice and heated to decompose the oxalate; (d) silver oxide with some copper oxide and barium peroxide deposited on pumice; and (e) silver oxide with some barium peroxide deposited on alumina.
GB36141/56A 1955-11-25 1956-11-26 Process for the manufacture of glyoxal Expired GB836828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE836828X 1955-11-25

Publications (1)

Publication Number Publication Date
GB836828A true GB836828A (en) 1960-06-09

Family

ID=6761267

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36141/56A Expired GB836828A (en) 1955-11-25 1956-11-26 Process for the manufacture of glyoxal

Country Status (1)

Country Link
GB (1) GB836828A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948997A (en) * 1968-05-06 1976-04-06 Laporte Industries Limited Vapour phase oxidation process
US4242282A (en) * 1978-01-26 1980-12-30 Basf Aktiengesellschaft Preparation of glyoxal
US4503261A (en) * 1982-07-22 1985-03-05 Basf Aktiengesellschaft Preparation of glyoxal
US4511739A (en) * 1979-06-02 1985-04-16 Basf Aktiengesellschaft Continuous preparation of glyoxal
ES2197013A1 (en) * 2002-06-06 2003-12-16 Consejo Superior Investigacion PREPARATION OF NEW CATALYSTS BASED ON SILVER AND COPPER OXIDES AND ITS USE IN OXIDATION REACTIONS.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3948997A (en) * 1968-05-06 1976-04-06 Laporte Industries Limited Vapour phase oxidation process
US4242282A (en) * 1978-01-26 1980-12-30 Basf Aktiengesellschaft Preparation of glyoxal
US4511739A (en) * 1979-06-02 1985-04-16 Basf Aktiengesellschaft Continuous preparation of glyoxal
US4503261A (en) * 1982-07-22 1985-03-05 Basf Aktiengesellschaft Preparation of glyoxal
ES2197013A1 (en) * 2002-06-06 2003-12-16 Consejo Superior Investigacion PREPARATION OF NEW CATALYSTS BASED ON SILVER AND COPPER OXIDES AND ITS USE IN OXIDATION REACTIONS.
WO2003103831A1 (en) * 2002-06-06 2003-12-18 Consejo Superior De Investigaciones Científicas Preparation of novel copper- and silver-oxide-based catalysts and use thereof in oxidation reactions

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