SPINEL MONOLIGHT CATALYST AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:JP2001149782A

    公开(公告)日:2001-06-05

    申请号:JP2000317318

    申请日:2000-10-18

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a spinel monolithic catalyst, manufacturing method therefor and a method of using it for reducing NOx in a waste combustion gas. SOLUTION: This spinel monolighic catalyst contains the spinel shown by general formula I: AxB(1-x)E2O4 (wherein all of A are Cu or half of A or less may be substituted with Co, Fe, Mn or Cr; B is at least one element selected from the group consisting of Zn, Mg, Ca, Zr, Ce, Sn, Ti, V, Mo and W; all of E are Al or half of E or less may be substituted with Fe2O3, Cr2O3, Ga2O3, La2O3 or a mixture of them; and (x) is 0-1, preferably 0-0.9). The spinel monolighic catalyst is obtained by manufacturing a particularly monolithic sintered compact by using the spinel or subsequently covering at least the surface of the sintered compact with an active composition, impregnating the obtained sintered compact with the solution containing transition elements of group V of the periodic table or adding the oxides or salts of these elements to the obtained sintered compact, drying and sintering it.

    6.
    发明专利
    未知

    公开(公告)号:BR9714044A

    公开(公告)日:2000-05-09

    申请号:BR9714044

    申请日:1997-12-17

    Abstract: PCT No. PCT/EP97/07091 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 17, 1997 PCT Pub. No. WO98/26858 PCT Pub. Date Jun. 25, 1998A process for the catalytic reduction of NOx, the reduction taking place in the presence of a catalyst which comprises (a) from 20 to 97 wt % of A2O3, (b) from 1 to 40 wt % of CuO, (c) from 1 to 50 wt % of ZnO, (d) from 1 to 40 wt % of Ag, (e) from 0 to 2 wt % of Pt, (f) from 0 to 20 wt % of oxides of rare earth metals, elements of the 3rd subgroup of the Periodic Table of the Elements or mixtures thereof, based on the total weight of the components (a) to (e), which adds up to 100 wt %, wherein, in each case, up to half the weight of the component (a) may be replaced by Fe2O3, Cr2O3, Ga2O3 or mixtures thereof, of the component (b) by CoO, of the component (c) by MgO, of the component (d) by Au and of the component (e) by Pd, Ru, Os, Ir, Rh, Re or mixtures thereof, is used for reducing NOx, especially in combustion off-gases, the components (a), (b) and (c) forming a spinel which is doped with the components (d), (e) and (f).

    8.
    发明专利
    未知

    公开(公告)号:DE59703453D1

    公开(公告)日:2001-05-31

    申请号:DE59703453

    申请日:1997-12-17

    Abstract: PCT No. PCT/EP97/07091 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 17, 1997 PCT Pub. No. WO98/26858 PCT Pub. Date Jun. 25, 1998A process for the catalytic reduction of NOx, the reduction taking place in the presence of a catalyst which comprises (a) from 20 to 97 wt % of A2O3, (b) from 1 to 40 wt % of CuO, (c) from 1 to 50 wt % of ZnO, (d) from 1 to 40 wt % of Ag, (e) from 0 to 2 wt % of Pt, (f) from 0 to 20 wt % of oxides of rare earth metals, elements of the 3rd subgroup of the Periodic Table of the Elements or mixtures thereof, based on the total weight of the components (a) to (e), which adds up to 100 wt %, wherein, in each case, up to half the weight of the component (a) may be replaced by Fe2O3, Cr2O3, Ga2O3 or mixtures thereof, of the component (b) by CoO, of the component (c) by MgO, of the component (d) by Au and of the component (e) by Pd, Ru, Os, Ir, Rh, Re or mixtures thereof, is used for reducing NOx, especially in combustion off-gases, the components (a), (b) and (c) forming a spinel which is doped with the components (d), (e) and (f).

    10.
    发明专利
    未知

    公开(公告)号:ES2159896T3

    公开(公告)日:2001-10-16

    申请号:ES97954415

    申请日:1997-12-17

    Abstract: PCT No. PCT/EP97/07091 Sec. 371 Date Jun. 16, 1999 Sec. 102(e) Date Jun. 16, 1999 PCT Filed Dec. 17, 1997 PCT Pub. No. WO98/26858 PCT Pub. Date Jun. 25, 1998A process for the catalytic reduction of NOx, the reduction taking place in the presence of a catalyst which comprises (a) from 20 to 97 wt % of A2O3, (b) from 1 to 40 wt % of CuO, (c) from 1 to 50 wt % of ZnO, (d) from 1 to 40 wt % of Ag, (e) from 0 to 2 wt % of Pt, (f) from 0 to 20 wt % of oxides of rare earth metals, elements of the 3rd subgroup of the Periodic Table of the Elements or mixtures thereof, based on the total weight of the components (a) to (e), which adds up to 100 wt %, wherein, in each case, up to half the weight of the component (a) may be replaced by Fe2O3, Cr2O3, Ga2O3 or mixtures thereof, of the component (b) by CoO, of the component (c) by MgO, of the component (d) by Au and of the component (e) by Pd, Ru, Os, Ir, Rh, Re or mixtures thereof, is used for reducing NOx, especially in combustion off-gases, the components (a), (b) and (c) forming a spinel which is doped with the components (d), (e) and (f).

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