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    OXIDATION CATALYSTS
    53.
    发明专利
    OXIDATION CATALYSTS 未知

    公开(公告)号：AU5479273A

    公开(公告)日：1974-10-24

    申请号：AU5479273

    申请日：1973-04-19

    Applicant: STANDARD OIL CO OHIO

    Inventor： MILBERGER ERNEST CARL ,  DOLHYJ SERGE ROMAN

    IPC: B01J23/28 ,  B01J23/30 ,  B01J23/88 ,  C07C51/23 ,  C07C51/25 ,  C07C51/31 ,  C07C51/54 ,  B01J11/06

    Abstract: 1427389 Maleic anhydride STANDARD OIL CO 18 April 1973 [5 May 1972] 18738/73 Heading C2C [Also in Division B1] Maleic anhydride is produced by oxidizing 1,3-butadiene, n-butenes, crotonaldehyde, furan or a mixture thereof with molecular oxygen at 250-600‹ C. using a catalyst comprising antimony, molybdenum, oxygen, vanadium and/or iron and, optionally, tungsten, magnesium, aluminium and/or nickel in the atomic proportions Sb a Mo b V c Fed Z e O x wherein: Z=W, Mg, Al and/or Ni; a=1-9; b=1-10; c, d, e=0-1 but c + d is greater than zero; and x is a number to satisfy valency requirements. The reaction pressure is usually superatmospheric but may be atmospheric or subatmospheric with a contact time of 1 to 50 sees. The feed may contain diluents, e.g. steam, nitrogen and carbon oxides. An air to reactant ratio of 12 to 20=1 may be employed. The examples describe the use of butadiene as feed to give a maleic anhydride product containing some acrylic acid.

    55.
    发明专利
    未知

    公开(公告)号：MX163226B

    公开(公告)日：1992-03-18

    申请号：MX19521982

    申请日：1982-11-17

    Applicant: STANDARD OIL CO OHIO

    Inventor： BLUM PATRICIA RAE ,  MILBERGER ERNEST CARL ,  NICHOLAS MARK LEE ,  ZOCK PATRICIA ANN

    IPC: C07D307/60 ,  B01J27/14 ,  B01J27/198 ,  B01J27/28 ,  B01J37/16 ,  B01J38/30 ,  C07B61/00 ,  C07C51/215

    Abstract: A process for activating fluid bed catalysts useful for producing maleic anhydride from 4-carbon atom hydrocarbons consists in contacting the fluidized catalyst containing the mixed oxides of vanadium and phosphorus with oxygen and a reducing gas at least partially combustible with oxygen at elevated temperatures sufficient to cause such combustion, the molar ratio of reducing gas to oxygen being below the stiochiometric ratio required for complete combustion of the reducing gas. The activated catalysts are used to producing maleic anhydride from 4-carbon atom hydrocarbons.

    IMPROVED MIXED VANADIUM PHOSPHORUS OXIDE CATALYSTS
    56.
    发明专利
    IMPROVED MIXED VANADIUM PHOSPHORUS OXIDE CATALYSTS 未知

    公开(公告)号：IN160581B

    公开(公告)日：1987-07-18

    申请号：IN51DE1981

    申请日：1981-01-28

    Applicant: STANDARD OIL CO OHIO

    Inventor： MILBERGER ERNEST CARL ,  BREMER NOEL JEROME ,  DRIA DENNIS EDWARD

    IPC: C07D307/60 ,  B01J23/00 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215 ,  B01J11/08

    Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

    PROCESS FOR PREPARING IMPROVED MIXED VANADIUM PHOSPHORUS OXIDE CATALYSTS
    59.
    发明专利
    PROCESS FOR PREPARING IMPROVED MIXED VANADIUM PHOSPHORUS OXIDE CATALYSTS 未知

    公开(公告)号：PT72957B

    公开(公告)日：1982-03-26

    申请号：PT7295781

    申请日：1981-04-30

    Applicant: STANDARD OIL CO OHIO

    Inventor： DRIA DENNIS EDWARD ,  MILBERGER ERNEST CARL ,  BREMER NOEL JEROME

    IPC: C07D307/60 ,  B01J23/00 ,  B01J23/22 ,  B01J27/18 ,  B01J27/198 ,  C01B25/37 ,  C07B61/00 ,  C07C51/215

    Abstract: Improved oxidation catalysts containing mixed oxides of vanadium and phosphorus which catalysts are particularly effective in the oxidation of n-butane, n-butenes, 1,3-butadiene or a mixture thereof with molecular oxygen or an oxygen-containing gas in the vapour phase to produce excellent yields of maleic anhydride with very good selectivity, are prepared by a process in which at least one vanadium compound, a substantial portion of which is in the pentavalent state, and at least one phosphorus-containing compound is added to an organic liquid medium capable of reducing at least a portion of the vanadium to a +4 valence state, to form a reaction mixture. Partial reduction of the vanadium is effected in the presence of the phosphorus-containing compound and a highly ordered and uniform mixed vanadium phosphorus oxide-containing catalyst precursor is formed. An oxidation catalyst comprising the mixed oxides of vanadium and phosphorus characterized by an average valence state of vanadium from +3.9 to +4.6, and a phosphorus to vanadium ratio of 1 : 1 to 1.2 : 1, wherein the macrostructure of the catalyst predominantly comprises generally spheroid particles consisting of stacks of integrally associated sheets of catalytic material is also disclosed.

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