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    Process of catalytic oxidation of propylene to acrolein in gaseous phase
    62.
    发明专利
    Process of catalytic oxidation of propylene to acrolein in gaseous phase 未知

    公开(公告)号：CZ294399B6

    公开(公告)日：2004-12-15

    申请号：CZ229395

    申请日：1995-09-07

    Applicant: BASF AG

    Inventor： RUPPEL WILHELM DR ,  WEGERLE ULRIKE ,  TENTEN ANDREAS DR ,  HAMMON ULRICH DR

    IPC: B01J23/88 ,  B01J8/06 ,  B01J21/02 ,  B01J23/16 ,  B01J23/887 ,  B01J27/132 ,  B01J27/192 ,  C07B61/00 ,  C07C45/35 ,  C07C47/22

    Abstract: In the present invention, there is described a process of catalytic oxidation of propylene to acrolein in gaseous phase wherein a gas-phase mixture of propene and oxygen is catalytically oxidized by passing a reactant gas mixture comprising propene and oxygen through a plurality of catalyst containing contact tubes in a fixed bed reactor and simultaneously passing only one heat-exchange medium at elevated temperature over the exterior surfaces of the contact tubes in a longitudinal flow pattern which is co-current with the direction of flow of the reactants through said tube; simultaneously superposing a transverse flow on said longitudinal flow of heat exchange medium by means of an arrangement of successive baffles along the contact tubes which leave passage cross-sections free, thereby resulting in a meandrous flow of the heat-exchange medium through the reactor and setting the flow rate of said heat-exchange medium so that its temperature between the point of entry of the medium into the reactor and its point of exit increases by 2 to 10 degC.

    63.
    发明专利
    未知

    公开(公告)号：ES2143702T3

    公开(公告)日：2000-05-16

    申请号：ES96117834

    申请日：1996-11-07

    Applicant: BASF AG

    Inventor： HIBST HARTMUT PROF DR ,  TENTEN ANDREAS DR ,  MAROSI LASZLO DR

    IPC: C01G1/00 ,  B01J23/00 ,  B01J23/20 ,  B01J23/28 ,  B01J23/30 ,  B01J23/88 ,  B01J23/887 ,  B01J23/888 ,  B01J35/00 ,  C01G31/00 ,  C01G39/00 ,  C01G41/00 ,  C07B61/00 ,  C07C45/33 ,  C07C45/34 ,  C07C45/35 ,  C07C45/38 ,  C07C51/235 ,  C07C51/25 ,  C07C57/05 ,  C07C57/055

    Abstract: A multimetal oxide of formula (I) Mo12-a-b-cVaM bM cOx is new, where: M = tungsten (W) and/or niobium (Nb); M = titanium (Ti), zirconium (Zr), hafnium (Hf), tantalum (Ta), chromium (Cr), silicon (Si) and/or germanium (Ge); a = 0.1-6; b = 0-6; c = 0-6; a+b+c = 0.1-6; and x = number determined by the valency and frequency of the element in (I) except oxygen. Its atomic space arrangement is determined by powder X-ray diffraction (the intensity A of the diffracted X-ray beam as a function of two-fold diffraction angle (2&thetas; )) using Cu-K alpha -radiation ( lambda = 1.54178 Angstrom ), so that in the 2&thetas; region of 5-50 degrees the following diffraction lines are produced: Al(X-ray diffraction line) = 8.3 plus or minus 0.7 (2&thetas; degrees ); A2=14.4 plus or minus 0.7; A3=22.3 plus or minus 0.2; A4=23.5 plus or minus 0.7; A5=27.2 plus or minus 0.4; A6=32.0 plus or minus 0.8; A7=34.8 plus or minus 0.6; A8=38.7 plus or minus 0.5; A9=45.4 plus or minus 0.4; and A10=48.8 plus or minus 0.4. Also claimed are: (i) a process for catalytic gas phase oxidation of organic compounds using the above multimetal oxide; and (ii) a finely divided mixture containing the above multimetal oxide (I) and a multimetal oxide (II) of formula: M 12CudHeOy, where: M = molybdenum (Mo), W, vanadium (V), Nb and/or Ta; d = 4-30; e = 0-20; and y = a number determined by the valency and frequency of the elements in (II) except oxygen.

    65.
    发明专利
    未知

    公开(公告)号：ES2133598T3

    公开(公告)日：1999-09-16

    申请号：ES95101741

    申请日：1995-02-09

    Applicant: BASF AG

    Inventor： MARTIN FRIEDRICH-GEORG DR ,  HIBST HARTMUT DR ,  TENTEN ANDREAS DR

    IPC: C01G1/00 ,  B01J23/88 ,  B01J23/885 ,  B01J27/14 ,  B01J27/195 ,  B01J27/199 ,  B01J35/00 ,  C01G1/02 ,  C01G39/00 ,  C07B61/00 ,  C07C51/25 ,  C07C57/055

    Abstract: Multimetal oxide compsn. of formula (I) is new: (A)p(B)q(I): A = Mo12X aX bX cX dSeX fO x; B = X 12CugX hOy; X = P, As, B, Ge and/or Si; X = V, Nb and/or W; X = H, up to 97 mole-% of which may be replaced by K, Rb, Cs and/or NH4; X = Sb and/or Bi; X = Re and/or Rh; X = Mp, W, Nb and/or Ta; X = Li, Na, K, Rb, Cs and/or NH4; a = 1-6; b, d = 0-6; c = 3-5; e, f = 0-3; g = 4-24; h = 0-20; x, y = values depending on the valency and content of elements other than O; p, q = values other than O, with the ratio p/q = 12:0.1 to 12:48. The A and B fractions are each in the form of 3D zones, which differ in chemical compsn. from their local surroundings, and the relative distribution of the A and B zones is as in a mixt. of finely-divided A and finely-divided B.

    Production of acrolein and acrylic acid by catalytic oxidation of propane
    69.
    发明专利
    Production of acrolein and acrylic acid by catalytic oxidation of propane 未知

    公开(公告)号：DE19751046A1

    公开(公告)日：1999-05-20

    申请号：DE19751046

    申请日：1997-11-19

    Applicant: BASF AG

    Inventor： JACHOW HARALD DR ,  TENTEN ANDREAS DR ,  UNVERRICHT SIGNE DR ,  ARNOLD HEIKO DR

    IPC: B01J23/00 ,  C07C45/33 ,  C07C51/215 ,  C07C57/05 ,  C07C59/66 ,  C07C69/716 ,  C07C69/734 ,  C07C45/28 ,  C07C47/12

    Abstract: Heterogeneous, catalytic, gas-phase oxidation of propane to acrolein and/or acrylic acid comprises passing a mixture of propane, oxygen and optionally an inert gas, at 300-500 deg C, over a two-part fixed-bed catalyst, each part containing different, specific mixed metal oxide phases. The catalyst in the first bed (A) has the formula M a Mo1-bM b Ox (I) M = cobalt, nickel, magnesium, manganese and/or copper; M = wolfram, vanadium, tellurium, niobium, phosphorus, chromium, iron, antimony, cerium, tin and/or lanthanum; a = 0.5-1.5; b = 0-0.5; x = a number required to satisfy the valencies of the other components and the catalyst in the second bed (B) has formula Bia,Mob, X c, X d, X e, X f, X g, X h, Ox, (II) X = wolfram, vanadium and/or tellurium; X = alkaline earth metal, cobalt, nickel, zinc, manganese, copper, cadmium, tin and/or mercury; X = iron, chromium and/or cerium; X = phosphorus, arsenic, antimony and/or boron; X = alkali metal, thallium and/or tin; X = rare earth metal, titanium, zirconium, niobium, tantalum, rhenium, ruthenium, rhodium, silver, gold, aluminum, gallium, indium, silicon, germanium, thorium and/or uranium; a' = 0.01-8; b' = 0.1-30; c', d' and e' = 0-20; f' = 0-6; g' = 0-4; h' = 0-15 The starting mixture of reactants contains at least 5 volume % propane, at least 15 volume % oxygen and 0-35 volume % inert gas and it passes through layer A first, then through B.

    Production of multimetal oxide for gas phase catalytic oxidation of acrolein to acrylic acid
    70.
    发明专利
    Production of multimetal oxide for gas phase catalytic oxidation of acrolein to acrylic acid 未知

    公开(公告)号：DE19740493A1

    公开(公告)日：1999-03-18

    申请号：DE19740493

    申请日：1997-09-15

    Applicant: BASF AG

    Inventor： HIBST HARTMUT PROF DR ,  UNVERRICHT SIGNE DR ,  TENTEN ANDREAS DR

    IPC: B01J23/885 ,  B01J23/888 ,  B01J35/00 ,  C07C57/055 ,  C01G41/00 ,  C01G39/00

    Abstract: In the production of multimetal oxide compositions (I) containing copper (Cu) and molybdenum (Mo), tungsten (W), vanadium (V), niobium (Nb) and/or tantalum (Ta). the temperature at which a finely-divided precursor multimetal oxide (B) containing these metals is worked into an aqueous solution containing sources of Mo, V and optionally other elements is bX cD dX eF fX gOx; B = X 12CuhHiOy; X = W, Nb, Ta, chromium (Cr) and/or cerium (Ce); X = Cu nickel (Ni), cobalt (Co), iron (Fe), manganese (Mn) and/or zinc (Zn); X = antimony (Sb) and/or bismuth (Bi); X = lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs) and/or hydrogen (H); X = magnesium (Mg), calcium (Ca), strontium (Sr) and/or barium (Ba); X = silicon (Si), aluminium (Al), titanium (Ti) and/or zirconium (Zr); X = Mo, W, V, Nb and/or Ta; a = 1-8; b = 0.2-5; c = 0-23; d = 0-50; e = 0-2; f = 0-5; g = 0-50; h = 4-30; i = 0-20; x, y = values depending on the valency and content of the elements other than oxygen (O); p, q not = 0; p/q = 160:1 to 1:1 . The process comprises (a) preparing (B); (b) working the required amount of (B) into an aqueous solution containing sources of Mo, V and optionally other elements in the stoichiometric ratios for an oxide (A); (c) drying the aqueous mixture; and (d) molding as required and calcination at 250-600 deg C. Independent claims are also included for (a) multimetal oxide compositions (I) prepared in this way; (b) an aqueous solution containing dissolved elements corresponding to the stoichiometry of (A), which is obtained by dissolving sources of the elements in water at a temperature TL \- 60 deg C and then cooling the solution to a temperature TE less than TL; and (c) a solid obtained by drying the solution.

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