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    Preparing a multielement oxide material useful as catalyst active material, by thermally treating dry blend of ammonium ions and elemental components of oxide material, other than oxygen in atmosphere having low content of molecular oxygen
    31.
    发明专利
    Preparing a multielement oxide material useful as catalyst active material, by thermally treating dry blend of ammonium ions and elemental components of oxide material, other than oxygen in atmosphere having low content of molecular oxygen 未知

    公开(公告)号：DE10325488A1

    公开(公告)日：2004-12-23

    申请号：DE10325488

    申请日：2003-06-04

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  HIBST HARTMUT ,  POEPEL WOLFGANG JUERGEN ,  PETZOLDT JOCHEN

    IPC: B01J23/00 ,  B01J23/887 ,  B01J23/888 ,  B01J35/00 ,  B01J37/08 ,  C07C51/215 ,  C07C51/235 ,  B01J23/88 ,  C01G31/02 ,  C01G33/00 ,  C01G39/02 ,  C01G41/02

    Abstract: Preparation of catalytically active multielement oxide materials containing niobium and/or tungsten, molybdenum, vanadium, and copper, includes thermally treating a dry blend containing ammonium ions and the elemental components of oxide material, other than oxygen at elevated temperature in an atmosphere having low content of molecular oxygen. A portion of ammonium ions in the dry blend is decomposed at >=160[deg]C with liberation of ammonia. Preparation of catalytically active multielement oxide materials containing niobium and/or tungsten, molybdenum, vanadium, and copper, includes thermally treating a dry blend containing ammonium ions and the elemental components of multielement oxide material, other than oxygen at elevated temperature in an atmosphere having a low content of molecular oxygen. A portion of ammonium ions contained in the dry blend is decomposed at >=160[deg]C with liberation of ammonia. Thermal treatment includes heating the dry blend at =10[deg]C/minute to a decomposition temperature (preferably 240-360[deg]C) and holding at this temperature until >=90 mole% of the total amount of ammonia liberated in the entire course of thermal treatment have been liberated; reducing the molecular content in the atmosphere where thermal treatment takes place is reduced to =0.5 vol.% not later than when the intimate dry blend has reached 230[deg]C and maintaining this low oxygen content until >=20 mole% of the total amount of ammonia liberated in the entire course of thermal treatment have been liberated; taking the dry blend at =10[deg]C/minute out of the decomposition temperature and into the calcination temperature of 380-450[deg]C not earlier than when >=70 mole% of the total amount of ammonia liberated in the entire course of thermal treatment have been liberated; and increasing the content of molecular oxygen in the atmosphere to greater than 0.5-4 vol.% not later than when 98 mole% of the total amount of ammonia liberated in the entire course of thermal treatment have been liberated, and calcining the dry blend at this increased oxygen content of atmosphere in the calcination temperature. The molar fraction of molybdenum is 20-80 mole%, based on the total amount of all elements other than oxygen in the multielement oxide material. The molar ratio of molybdenum to vanadium is 15:1 - 1:1. The molar ratio of molybdenum to copper is 30:1 - 1:3. The molar ratio of molybdenum to the total amount of tungsten and niobium is 80:1 - 1:4.

    Partial oxidation of propene for manufacture of acrolein, involves passing reaction mixture over catalyst bed having preset temperature zones whose transition is different from transition between preset fixed catalyst bed zones
    32.
    发明专利
    Partial oxidation of propene for manufacture of acrolein, involves passing reaction mixture over catalyst bed having preset temperature zones whose transition is different from transition between preset fixed catalyst bed zones 未知

    公开(公告)号：DE10313210A1

    公开(公告)日：2004-10-07

    申请号：DE10313210

    申请日：2003-03-25

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  DIETERLE MARTIN ,  ARNOLD HEIKO ,  WILHELM RUPPEL ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C17/35 ,  C07C51/25 ,  C07C47/22 ,  C07C27/14

    Abstract: A mixture of propene, molecular oxygen and inert gas, is passed over a fixed catalyst bed having temperature zones (A,B) maintained at 290-380 [deg] C. The fixed catalyst bed has two fixed catalyst bed zones having preset volume-specific activity. The transition from zone A to zone B in fixed catalyst bed do not coincide with transition from one fixed catalyst bed zone to another. The partial oxidation of propene in gaseous phase is performed in presence of heterogeneous catalyst. A reaction gas mixture comprising propene, molecular oxygen and at least one inert gas is passed over a fixed catalyst bed containing at least one multimetal oxide comprising molybdenum, iron and bismuth. The molar ratio of molecular oxygen and propene is = 1. The fixed catalyst bed is arranged in two spatially successive temperature zones (A,B), both maintained at 290-380 [deg] C. The fixed catalyst bed consists of at least two spatially successive fixed catalyst bed zones. The volume-specific activity within one fixed catalyst bed zone is substantially constant and increases sharply in the flow direction of the reaction gas mixture at the transition from one fixed catalyst bed zone to another fixed catalyst bed zone. The temperature zone (A) extends up to a conversion of propene of 40-80 mol%. On single pass of the starting reaction gas mixture through the entire fixed catalyst bed, the propene conversion is >=90 mol% and the selectivity of acrolein formation based on converted propene is >=90 mol %. The sequence in time in which the reaction gas mixture flows through the temperature zones (A,B) corresponds to the alphabetic sequence of the temperature zones. The hourly space velocity of the propene contained in the reaction gas mixture on the fixed catalyst bed is >= 90 I(STP) of propene/I of fixed bed catalyst.h. The difference (TmaxA-TmaxB) between the highest temperature (TmaxA) of reaction gas mixture in zone A, and the highest temperature (TmaxB) of reaction gas mixture in zone B, is >=0 [deg] C. The transition from temperature zone A to temperature zone B in the fixed catalyst bed do not coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.

    Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid, used to produce polymers for adhesives, involves using active multimetal oxide material containing e.g. molybdenum and vanadium
    35.
    发明专利
    Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid, used to produce polymers for adhesives, involves using active multimetal oxide material containing e.g. molybdenum and vanadium 未知

    公开(公告)号：DE10246119A1

    公开(公告)日：2004-04-15

    申请号：DE10246119

    申请日：2002-10-01

    Applicant: BASF AG

    Inventor： HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  ADAMI CHRISTOPH ,  MACHHAMMER OTTO ,  MUELLER-ENGEL KLAUS JOACHIM ,  MARTAN HANS

    IPC: C07C47/22 ,  C07C57/04 ,  C07C253/18 ,  C07C255/08 ,  C07D301/08 ,  C07D303/04

    Abstract: A heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections whose peaks are at specified diffraction angles. Heterogeneously catalyzed gas-phase partial oxidation of acrolein to acrylic acid over a catalytically active multimetal oxide material which contains the elements molybdenum and vanadium, tellurium or antimony, and elements consisting of niobium, tantalum, tungsten or titanium, whose X-ray diffraction pattern has no reflections with the peak position 2 theta = 50 +/- 0.30 but has reflections h, i and k whose peaks are at the diffraction angles (2 theta) 22.2 +/- 0.5 degrees (h), 27.3 +/- 0.50 (i) and 28.2 +/- 0.50 (k). The reflection (h ) is the one with the strongest intensity within the X-ray diffraction pattern and having a full width at half height of not more than 0.50; the intensity (Pi) of the reflection (i) and the intensity (Pk) of the reflection (k) fulfill the relationship that R is 0.65-0.85, where R is the intensity ratio defined by the formula R = Pi/(Pi + Pk); and the full width at half height of the reflection (i) and of the reflection (k) is in each case at most 10. The catalytically active multimetal oxide material is of formula (I). Mo1VaM1bM2cM3dOn (I). M1 = element(s) from the group consisting of Te and Sb; M2 = element(s) from the group consisting of Nb, Ti, W, Ta and Ce; M3 = element(s) consisting of Pb, Ni, Co, Bi, Pd, Ag, Pt, Cu, Au, Ga, Zn, Sn, In, Re, Ir, Sm, Sc, Y, Pr, Nd or Tb; a = 0.01-1; b = 0-1; c = 0-1; d = 0-0.5; n = number that is determined by the valency and frequency of the elements other than oxygen in formula (I).

    36.
    发明专利
    未知

    公开(公告)号：BRPI0608407A2

    公开(公告)日：2010-11-16

    申请号：BRPI0608407

    申请日：2006-03-07

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  CREMER ULRICH ,  DIETERLE MARTIN

    IPC: B01J8/00 ,  B01J4/00 ,  B01J8/06

    Abstract: A method for filling a reactor with catalyst particles (I) containing an active multi-element oxide material (II) (at least on the surface), involves using catalyst particles containing a substance (III) which is liquid at 20[deg]C and 1 atm. Independent claims are also included for (1) a reactor filled with (I); and (2) a method for the production of acrylic acid by the catalytic gas-phase oxidation of acrolein in such a reactor.

    METHOD FOR FILLING A REACTOR
    37.
    发明专利
    METHOD FOR FILLING A REACTOR 未知

    公开(公告)号：SG160371A1

    公开(公告)日：2010-04-29

    申请号：SG2010015873

    申请日：2006-03-07

    Applicant: BASF AG

    Inventor： PETZOLDT JOCHEN ,  CREMER ULRICH ,  DIETERLE MARTIN

    Abstract: Method for filing a reactor The present invention relates to a process for charging a reactor with a catalyst, to the resulting charged reactors, and to the use thereof for carrying out catalytic gas phase reactions.

    39.
    发明专利
    未知

    公开(公告)号：BRPI0415989A

    公开(公告)日：2007-01-09

    申请号：BRPI0415989

    申请日：2004-10-28

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/25 ,  C07C57/04

    Abstract: The invention relates to a long-life method for two-stage heterogeneously-catalysed gas phase partial oxidation of propene into acrylic acid. According to said method, the temperature of the fixed catalyst beds is increased overtime; the gas phase partial oxidation is interrupted from time to time and, when the temperature of said fixed catalyst beds is increased, a gas mixture, containing oxygen, is led through the fixed catalyst beds.

    40.
    发明专利
    未知

    公开(公告)号：BRPI0416081A

    公开(公告)日：2007-01-02

    申请号：BRPI0416081

    申请日：2004-10-08

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C51/25 ,  C07C57/04

    Abstract: A process for the long-term operation of a heterogeneously catalyzed gas phase partial oxidation of acrolein to acrylic acid, in which the temperature of the fixed catalyst bed is increased over time and partial oxidation is interrupted and an oxygen-containing gas is conducted through the fixed catalyst bed before the temperature increase is 8° C.

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