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    2.
    发明专利
    未知

    公开(公告)号：DE59204672D1

    公开(公告)日：1996-01-25

    申请号：DE59204672

    申请日：1992-09-28

    Applicant: DEGUSSA

    Inventor： ARNTZ DIETRICH DR ,  HAAS THOMAS DR ,  SCHAEFER-SINDLINGER ADOLF DR

    IPC: B01J23/42 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20

    Abstract: Process for the preparation of 1,3-propanediol by hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a shaped supported catalyst in a solid bed, the concentration of the HPA in the solution being 5 to 100% by weight, and the hydrogenation being carried out at temperatures from 30 to 180 DEG C and hydrogen pressures from 5 to 300 bar and at a pH between 2.5 and 6.5, characterised in that the supported catalyst consists of titanium oxide, on which platinum is present in finely divided form in an amount relative to the support of 0.1 to 5.0% by weight.

    Combustion catalyst used for the combustion of gaseous hydrocarbons
    4.
    发明专利
    Combustion catalyst used for the combustion of gaseous hydrocarbons 未知

    公开(公告)号：DE19653990A1

    公开(公告)日：1998-06-25

    申请号：DE19653990

    申请日：1996-12-21

    Applicant: DEGUSSA

    Inventor： YPEREN RENEE VAN DR ,  BLUMRICH STEPHAN ,  SCHAEFER-SINDLINGER ADOLF DR ,  LOX EGBERT DR ,  KREUZER THOMAS DR

    IPC: B01J23/40 ,  F01N3/28 ,  F01N3/20

    Abstract: A catalyst for catalytic combustion contains at least one precious metal from the platinum group on a finely divided carrier material. Its surface concentration as determined by X-photoelectron spectrometry is between 0.2 and 0.5 area %. Also claimed is the use of such a catalyst as an active coating on an inert carrier. Preferably the precious metal is Pt, Pd or Rh. The carrier material is chosen from the group Al2O3, SiO2, TiO2, ZrO2, hexa-aluminate and spinels which may be stabilised with Si, Zr, La, Ba or Y. The precious metal may be pre-mixed with a carrier material free of precious metal before being coated onto an inert carrier. This carrier may be a honeycomb or open pore foamed inorganic material.

    5.
    发明专利
    未知

    公开(公告)号：DE4132663C2

    公开(公告)日：1993-10-14

    申请号：DE4132663

    申请日：1991-10-01

    Applicant: DEGUSSA

    Inventor： ARNTZ DIETRICH DR ,  HAAS THOMAS DR ,  SCHAEFER-SINDLINGER ADOLF DR

    IPC: B01J23/42 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20

    Abstract: Process for the preparation of 1,3-propanediol by hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a shaped supported catalyst in a solid bed, the concentration of the HPA in the solution being 5 to 100% by weight, and the hydrogenation being carried out at temperatures from 30 to 180 DEG C and hydrogen pressures from 5 to 300 bar and at a pH between 2.5 and 6.5, characterised in that the supported catalyst consists of titanium oxide, on which platinum is present in finely divided form in an amount relative to the support of 0.1 to 5.0% by weight.

    8.
    发明专利
    未知

    公开(公告)号：AT131465T

    公开(公告)日：1995-12-15

    申请号：AT92116518

    申请日：1992-09-28

    Applicant: DEGUSSA

    Inventor： ARNTZ DIETRICH DR ,  HAAS THOMAS DR ,  SCHAEFER-SINDLINGER ADOLF DR

    IPC: B01J23/42 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20

    Abstract: Process for the preparation of 1,3-propanediol by hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a shaped supported catalyst in a solid bed, the concentration of the HPA in the solution being 5 to 100% by weight, and the hydrogenation being carried out at temperatures from 30 to 180 DEG C and hydrogen pressures from 5 to 300 bar and at a pH between 2.5 and 6.5, characterised in that the supported catalyst consists of titanium oxide, on which platinum is present in finely divided form in an amount relative to the support of 0.1 to 5.0% by weight.

    10.
    发明专利
    未知

    公开(公告)号：DE4132663A1

    公开(公告)日：1993-04-08

    申请号：DE4132663

    申请日：1991-10-01

    Applicant: DEGUSSA

    Inventor： ARNTZ DIETRICH DR ,  HAAS THOMAS DR ,  SCHAEFER-SINDLINGER ADOLF DR

    IPC: B01J23/42 ,  C07B61/00 ,  C07C29/141 ,  C07C31/20

    Abstract: Process for the preparation of 1,3-propanediol by hydrogenation of hydroxypropionaldehyde (HPA) in aqueous solution on a shaped supported catalyst in a solid bed, the concentration of the HPA in the solution being 5 to 100% by weight, and the hydrogenation being carried out at temperatures from 30 to 180 DEG C and hydrogen pressures from 5 to 300 bar and at a pH between 2.5 and 6.5, characterised in that the supported catalyst consists of titanium oxide, on which platinum is present in finely divided form in an amount relative to the support of 0.1 to 5.0% by weight.

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