中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

25 records (took 0.022 seconds)

    METHOD AND APPARATUS FOR PRODUCING STABLE FINE PARTICLE
    1.
    发明专利
    METHOD AND APPARATUS FOR PRODUCING STABLE FINE PARTICLE 失效

    公开(公告)号：JP2000225333A

    公开(公告)日：2000-08-15

    申请号：JP37697699

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： LOCKEMANN CHRISTIAN ,  LUEDDECKE ERIK ,  HORN DIETER DR

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

    Abstract: PROBLEM TO BE SOLVED: To eliminate the generation of aggregation, precipitation, and diffusion and to produce stable fine particles efficiently by dissolving two kinds of substances in different compressible supercritical fluids, making the substances penetrate into each other in conditions in which the dissolution limit of one substance exceeds earlier than that of the other substance. SOLUTION: When substances A, B are dissolved in a supercritical fluid, and the pressure of the solution is reduced along a pressure holding section to produce stable fine particles, the substances A, B are dissolved in different compressible supercritical fluids. In conditions in which the dissolution limit of the substance A exceeds earlier than that of the substance B, the substances are made to penetrate into each other. For example, fluids are passed from both supply lines 1, 5 through both high pressure autoclaves 2, 6, where the substances A, B are taken out. Both supply lines 3, 7 are connected to both pressure reducing apparatuses 4, 8, and the mixing of the fluids before pressure reduction is prevented. Moreover, the particles 10 of the substance A are coated with the substance B.

    2.
    发明专利
    未知

    公开(公告)号：BRPI0514137A

    公开(公告)日：2008-05-27

    申请号：BRPI0514137

    申请日：2005-08-04

    Applicant: BASF AG

    Inventor： LKEL LUDWIG V ,  LANGE ARNO ,  LOCKEMANN CHRISTIAN ,  POSSELT DIETMAR

    IPC: C10L1/22

    Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which R is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

    3.
    发明专利
    未知

    公开(公告)号：BRPI0514137B1

    公开(公告)日：2014-09-16

    申请号：BRPI0514137

    申请日：2005-08-04

    Applicant: BASF AG

    Inventor： VOELKEL LUDWIG ,  LOCKEMANN CHRISTIAN ,  POSSELT DIETMAR ,  LANGE ARNO

    IPC: C10L1/22

    Abstract: The present invention relates to the use of at least one heterocyclic compound of the formula (I) in which R is H or C1-C3-alkyl as a frictional wear-reducing additive in fuel compositions; to corresponding additized fuel compositions and their preparation; and to additive concentrates which comprise such compounds.

    5.
    发明专利
    未知

    公开(公告)号：AT371494T

    公开(公告)日：2007-09-15

    申请号：AT99914571

    申请日：1999-04-07

    Applicant: BASF AG

    Inventor： GROSCH GEORG ,  MUELLER ULRICH ,  HESSE MICHAEL ,  LOCKEMANN CHRISTIAN

    IPC: B01J21/00 ,  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

    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).

Patent Agency Ranking