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    21.
    发明专利
    未知

    公开(公告)号：PT1016454E

    公开(公告)日：2003-12-31

    申请号：PT99125902

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： ERIK LUDDECKE DR ,  HORN DIETER ,  LOCKEMANN CHRISTIAN

    IPC: A61J3/02 ,  B01J2/00 ,  B01J2/04 ,  B01J3/00 ,  B01J13/06 ,  B01J19/00

    Abstract: Preparation of stable fine particle powders comprises: (a) dissolving one or more substances (A) and one or more substances (B) in a super-critical, compressible fluid; and (b) relaxing the fluid along a residence path, where the solubility limit of (A) is earlier than that of (B) in the residence path. An Independent claim is included for an apparatus for carrying out the process comprising a first high pressure autoclave (2) for dissolving substance (A) in a super critical fluid and a second high pressure autoclave for dissolving substance (B) in a super critical fluid. Two separate feeds (3, 7) connected to relaxation devices (4, 8) relax both fluids so that their flows intersect.

    22.
    发明专利
    未知

    公开(公告)号：DE19860497A1

    公开(公告)日：2000-07-06

    申请号：DE19860497

    申请日：1998-12-28

    Applicant: BASF AG

    Inventor： LOCKEMANN CHRISTIAN ,  LUEDDECKE ERIK ,  HORN DIETER

    IPC: A61J3/02 ,  B01J2/00 ,  B01J2/04 ,  B01J3/00 ,  B01J13/06 ,  B01J19/00

    Abstract: Preparation of stable fine particle powders comprises: (a) dissolving one or more substances (A) and one or more substances (B) in a super-critical, compressible fluid; and (b) relaxing the fluid along a residence path, where the solubility limit of (A) is earlier than that of (B) in the residence path. An Independent claim is included for an apparatus for carrying out the process comprising a first high pressure autoclave (2) for dissolving substance (A) in a super critical fluid and a second high pressure autoclave for dissolving substance (B) in a super critical fluid. Two separate feeds (3, 7) connected to relaxation devices (4, 8) relax both fluids so that their flows intersect.

    Method for producing a shaped body using a metal oxide sol, shaped body,the use thereof in the production of an alkene oxide
    23.
    发明专利
    Method for producing a shaped body using a metal oxide sol, shaped body,the use thereof in the production of an alkene oxide 未知

    公开(公告)号：AU3333699A

    公开(公告)日：1999-11-01

    申请号：AU3333699

    申请日：1999-04-07

    Applicant: BASF AG

    Inventor： GROSCH GEORG HEINRICH ,  MULLER ULRICH ,  HESSE MICHAEL ,  LOCKEMANN CHRISTIAN

    IPC: B01J21/06 ,  B01J29/04 ,  B01J29/06 ,  B01J29/89 ,  B01J35/00 ,  B01J35/04 ,  B01J37/00 ,  B01J37/03 ,  C04B28/00 ,  C04B28/24 ,  C04B38/08 ,  C07D301/12 ,  C07D303/04 ,  B01J21/00

    Abstract: Molded bodies having a low content of alkali and alkali earth metal ions can be obtained when in one stage of the process a porous oxide material is mixed with a metal oxide sol and/or a metal oxide. A molded body comprising at least one oxide material and at least one metal oxide is prepared in 5 stages: (i) mixing of at least one metal oxide with at least one metal oxide sol having a low content of alkali and alkali earth metals and/or at least one metal oxide of low alkali and alkali earth metal content; (ii) compaction of the mass; (iii) forming of the mass; (iv) drying of the molded body; and (v) calcining of the dried molded body. Independent claims are included for: (1) A molded body obtained as above; (2) a metal oxide sol having a content of alkali and alkali earth metal ions less than 800 ppm, obtained by hydrolysis of at least one metal acid ester; (3) a process for preparation of at least one alkylene oxide involving the 3 stages: (A) reaction of at least one alkene with hydrogen peroxide in the presence of a molded body obtained as above as catalyst, which can act as catalysts for selective oxidation; (B) preparation of the alkene by dehydration of an alkane; (C) oxidation of the hydrogen produced in (II) to hydrogen peroxide, which is then used in stage (I).

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