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    Production of carrier catalysts
    11.
    发明专利
    Production of carrier catalysts 未知

    公开(公告)号：GB1067726A

    公开(公告)日：1967-05-03

    申请号：GB3258664

    申请日：1964-08-11

    Applicant: BASF AG

    Inventor： FRIEDRICHSEN WILHELM

    IPC: B01J21/06 ,  B01J23/22 ,  B01J23/50 ,  B01J23/755 ,  B01J37/02

    Abstract: Metals and metal compounds used as catalysts on carrier materials are dissolved in molten ammonium salt of an aliphatic carboxylic acid with one or more carbon atoms and/or of thiocyanic acid and/or thiourea applied to the carrier and fixed by heating. Exemplified catalysts are oxides of tungsten chromium, molybdenum, and vanadium, the nitrates of silver, nickel, bismuth and cobalt, the sulphates of copper, manganese, iron and tin, the chlorides, oxalates, formates thiocyantes and acetates of these metals and copper tetramine sulphate, copper tungstate, ammonium vanadate and iron ferrocyanate. Carriers specified are silica, alumina, titania, zinc oxide magnesia and natural silicates.

    Production of pure maleic anhydride
    14.
    发明专利
    Production of pure maleic anhydride 未知

    公开(公告)号：GB946724A

    公开(公告)日：1964-01-15

    申请号：GB853562

    申请日：1962-03-06

    Applicant: BASF AG

    Inventor： FRIEDRICHSEN WILHELM ,  STEPHAN HANS JOACHIM

    Abstract: Maleic anhydride, 99.7 to 99.8% pure and free from fumaric acid, is produced by introducing maleic acid, or an aqueous solution or suspension containing at least 50% by weight thereof, into maleic anhydride boiling at atmospheric or reduced pressure thereby vaporizing maleic anhydride and water; cooling the vapours by 3 to 30 DEG C., preferably 5 to 20 DEG C., but not below 100 DEG C., in a first condensation zone; removing the condensed maleic anhydride; cooling the remaining vapours to 30 DEG to 80 DEG C. below that of the first condensation zone, but not below the dew point of water vapour at the prevailing pressure and not below 53 DEG C.; returning the condensate to the vaporizing mixture and condensing the water vapour leaving the second condensation zone. In a specific embodiment maleic acid, or an aqueous solution or suspension thereof, is passed from vessel 1 into vaporizer 2 which contains boiling maleic anhydride at 110 DEG to 200 DEG C. and 50 to 760 mm.Hg., being preferably 115 DEG to 140 DEG C. at 90 to 150 mm. Hg. It is convenient to maintain an amount of anhydride, advantageously 70 to 95% by weight of the contents of the vessel, in 2 such that the mixture remains homogeneously liquid and to introduce the maleic acid into 2.3 to 17 times its own weight of anhydride. The vapours are passed through column 3, maintained at the same temperature as 2, into the first condensation zone 4, where they are cooled by 3 to 30 DEG C. to condense part of the anhydride (approx. 15 to 35%) contained therein, which is collected in pure form in vessel 5. The remaining vapours are cooled in the second condensation zone (6) to such a temperature that the bulk of anyhdride is separated in lquid form but the water vapour remains substantially uncondensed. The condensate from 6 is passed via pipe 7 and column 3 to the vaporizing mixture in 2 and the residual vapours are condensed in column 8, collected in vessel 9 and may be used for washing maleic anhydride gases from the combustion products of benzene. The ratio between maleic anhydride condensed in the first zone to that in the second, controlled by the temperature of the two zones, is 1:6 to 1:1. Examples are given.

    SUPPORTED CATALYST CONTAINING VANADIUM PENTOXIDE AND ZIRCONIUM DIOXIDE
    17.
    发明专利
    SUPPORTED CATALYST CONTAINING VANADIUM PENTOXIDE AND ZIRCONIUM DIOXIDE 未知

    公开(公告)号：CA981655A

    公开(公告)日：1976-01-13

    申请号：CA157709

    申请日：1972-11-28

    Applicant: BASF AG

    Inventor： REUTER PETER ,  FRIEDRICHSEN WILHELM

    IPC: C07D307/89 ,  B01J23/22 ,  B01J27/188 ,  B01J27/198 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31

    Abstract: 1402629 Oxidisation catalysts BADISCHE ANILIN- & SODA-FABRIK AG 30 Nov 1972 [1 Dec 1971 10 Jan 1972] 55268/72 Heading B1E [Also in Division C2] Supported catalysts comprise an inert carrier coated with a layer of active composition comprising 1-30 wt % V 2 O 5 , 99-40 wt % ZrO 2 having an internal surface area of 2-25 m 2 /g and 0-59 wt % TiO 2 based on the active composition, the V 2 O 5 content being 0.05-3 wt % based on the whole supported catalyst. The carrier, if porous, may be primed with an oxide of Al, Mo, Cr, W, Fe or Co and the active composition may also contain P 2 O 5 and/or an oxide of Li, Al, Sn, Hf, Nb, Cr, Mo or W.

    PRODUCTION OF CARBOXYLIC OR DIACARBOXYLIC ACIDS OR ANHYDRIDES
    18.
    发明专利
    PRODUCTION OF CARBOXYLIC OR DIACARBOXYLIC ACIDS OR ANHYDRIDES 未知

    公开(公告)号：CA980788A

    公开(公告)日：1975-12-30

    申请号：CA134472

    申请日：1972-02-10

    Applicant: BASF AG

    Inventor： GOEHRE OTTO ,  FRIEDRICHSEN WILHELM

    IPC: C07C51/25 ,  C07C51/265 ,  C07C51/31

    Abstract: 1369919 Acids and anhydrides by oxidation BADISCHE ANILIN- & SODA-FABRIK AG 10 Feb 1972 [11 Feb 1971] 6200/72 Heading C2C Monocarboxylic acids, dicarboxylic acids or their anhydrides are prepared by the oxidation of an aromatic hydrocarbon or an unsaturated aliphatic hydrocarbon with oxygen or an oxygen-containing gas in the presence of a supported catalyst containing V 2 O 5 , the tube in which oxidation is carried out having a wholly or partly uneven inner surface, e.g. by having projections such as metal rings or spirals, or with a metal powder fused on to the surface, or having depressions in the surface. The process is suitable for the production of phthalic anhydride from o-xylene or naphthalene or of maleic anhydride from benzene or mixtures of butadiene and n-butene.

    Production of Maleic Anhydride and Maleic Acid.
    20.
    发明专利
    Production of Maleic Anhydride and Maleic Acid. 未知

    公开(公告)号：GB1154148A

    公开(公告)日：1969-06-04

    申请号：GB4487466

    申请日：1966-10-07

    Applicant: BASF AG

    Inventor： FRIEDRICHSEN WILHELM ,  POEHLER GUENTER ,  GOEHRE OTTO

    IPC: B01J27/198 ,  C07C51/215 ,  C07C51/25

    Abstract: 1,154,148. Oxidation catalysts. BADISCHE ANILIN-& SODA-FABRIK A.G. 7 Oct., 1966 [9 Oct., 1965], No. 44874/66. Heading B1E. [Also in Division C2] A catalyst composition comprises 1-30% V 2 O 5 , 0-25% WO 3 , 5-70% P 2 O 5 , 4-90%. of a Cu, Ag, Cr, Mn, Fe, Co or Ni oxide and 0-90% of an inert carrier material, by weight. Preferably the ratio of P 2 O 5 to V 2 O 5 in the catalyst is more than 2:1 and the catalyst has an internal surface area of 1-100 sq. m/g. The catalysts may be prepared by conventional methods and may be used in the oxidation of olefinically unsaturated aliphatic hydrocarbons to anhydrides and acids.

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