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    Metallic reactor tube, useful for the production of (meth)acrolein and/or (meth)acrylic acid by catalytic gas-phase oxidation of alkane or alkene etc.
    131.
    发明专利
    Metallic reactor tube, useful for the production of (meth)acrolein and/or (meth)acrylic acid by catalytic gas-phase oxidation of alkane or alkene etc. 未知

    公开(公告)号：DE19839782A1

    公开(公告)日：2000-03-02

    申请号：DE19839782

    申请日：1998-09-01

    Applicant: BASF AG

    Inventor： UNVERRICHT SIGNE ,  ARNOLD HEIKO ,  TENTEN ANDREAS ,  MACHHAMMER OTTO ,  ZEHNER PETER

    IPC: B01J23/31 ,  B01J37/02 ,  C07C45/35 ,  C07C51/25 ,  C07C57/05 ,  B01J8/06

    Abstract: A metallic reactor tube with a catalytic coating of multi-metal oxide material containing molybdenum and bismuth, directly applied to the tube. Independent claims are also included for (a) a pipe bundle reactor with reactor tubes as defined; (b) a process for the production of coated reactor tubes or pipe bundle reactors, comprising (1) preparation of solutions, emulsions and/or dispersions of the elements and/or their compounds required for the catalyst and/or its precursor, (2) possible addition of coupling agents, binders, viscosity regulators and/or pH regulators, (3) application to the tube(s), preferably on the inside, preferably by spraying or dip-coating and (4) drying and possibly sintering or calcining by heating the coated tube at 20-1500 (preferably 200-400) deg C, optionally in presence of inert or reactive gas; (c) a process for the production of (meth)acrolein and/or (meth)acrylic acid by the catalytic gas-phase oxidation of 1-6C alkanes, 2-6C alkenes, 1-6C alkanols and/or alkanals and/or precursors thereof, using a reactor tube or pipe bundle reactor as above.

    134.
    发明专利
    未知

    公开(公告)号：ES2139266T3

    公开(公告)日：2000-02-01

    申请号：ES96103300

    申请日：1996-03-04

    Applicant: BASF AG

    Inventor： HEFNER WERNER ,  MACHHAMMER OTTO ,  NEUMANN HANS-PETER ,  TENTEN ANDREAS ,  RUPPEL WILHELM ,  VOGEL HERBERT

    IPC: C07C47/22 ,  C07B61/00 ,  C07C5/333 ,  C07C11/06 ,  C07C45/33 ,  C07C45/35 ,  C07C51/215 ,  C07C51/25 ,  C07C57/04 ,  C07C57/05 ,  C07C57/055

    Abstract: Prodn. of acrolein (I) and/or acrylic acid (II) from C3H8 involves (A) gas phase partial dehydrogenation of C3H8 to C3H6, using heterogeneous catalyst; (B) using the prod. gas mixt. of C3H6 and unreacted C3H8 for charging an oxidn. reactor, in which C3H6 is converted to (I) and/or (II) by gas phase selective partial oxidn. with pure O2 using heterogeneous catalyst; and (C) separating the prod. from the prod. gas stream and recycling at least the unreacted C3H8 from stage (B) to stage (A). The novelty is that, before entering stage (B), constituents other than C3H8 and C3H6, at least H2 and steam, are removed from the prod. gas mixt. from stage (A). Pref. all constituents except C3H8 and C3H6 are removed after stage (A). Stage (B) is carried out in 2 consecutive reactors charged with multi-metal oxide catalysts, the first of Mo-Bi-Fe and the second of Mo-V. The prod. gas mixt. from the first oxidn. reactor is passed directly into the second; and the vol. ratio of organic cpd. for partial oxidn. (C3H6 or (II)) to O2 is 1:(1-3) in both reactors.

    138.
    发明专利
    未知

    公开(公告)号：ES2119293T3

    公开(公告)日：1998-10-01

    申请号：ES95118264

    申请日：1995-11-21

    Applicant: BASF AG

    Inventor： TENTEN ANDREAS ,  WEIDLICH PETER ,  LINDEN GERD

    IPC: B01J23/34 ,  B01J21/16 ,  B01J23/88 ,  B01J23/885 ,  B01J23/887 ,  B01J27/192 ,  B01J35/00 ,  B01J35/02 ,  B01J35/08 ,  B01J35/10 ,  B01J37/02 ,  C07B61/00 ,  C07C27/00 ,  C07C27/14 ,  C07C45/32 ,  C07C45/33 ,  C07C45/35 ,  C07C45/37 ,  C07C47/22 ,  C07C51/235 ,  C07C51/25 ,  C07C57/055

    Abstract: A catalyst having a catalytically active oxide on the surface of a carrier is mfd. by moistening the carrier with a liq. binder consisting of a soln. of 10-80 wt.% of organic binder dissolved in 20-90 wt.% of H2O, contacting its surface with finely divided oxide particles, and removing the binding agent. The organic binder has a b.pt. or sublimation temp. of > 100 degrees C at atmos. pressure. Also claimed are: (i) a shell catalyst consisting of a hollow cylinder carrier 2-10 mm long with an external dia. 4-10 mm and a 1-4 mm wall thickness coated on its external surface with an oxide of general formula Mo12VaX bX cX dX eX fX 6gOn in which, X is W, Nb, Ta, Cr and/or Ce, X is Cu, Ni, Co, Fe, Mn and/or Zn, X is Sb and/or Bi, X is 1 or more alkali metals, X is 1 or more alkaline earth metals, X is Si, Al, Ti and/or Zr and a = 1-6, b = 0.2-4, c = 0.5-18, d = 0-40, e = 0-2, f = 0-4, g = 0-40 and n is a number determined by the valency and the abundance of the different elements in the general formula. The thickness of oxide is 10-1000 mu m, the specific active surface is 20-30 m /g and a value of cX dX eX fOn in which, X is Ni and/or Co, X is Tl, an alkali metal and/or an alkaline earth metal, X is P, As, B, Sb, Sn, Ce, Pb, Nb and/or W, X is Si, Al, Ti and/or Zr and a = 0.5-5, b = 0.01-3, c = 3-10, d = 0.02-2, e = 0-5, f = 0-10 and n is a number determined by the valency and the abundance of the different elements in the general formula.

    139.
    发明专利
    未知

    公开(公告)号：ID16006A

    公开(公告)日：1997-08-28

    申请号：ID963350

    申请日：1996-11-15

    Applicant: BASF AG

    Inventor： HIBST HARTMUT ,  TENTEN ANDREAS ,  MAROSI LASZLO

    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 ,  B01J27/00

    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.

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