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    METHOD FOR THE PRODUCTION OF HIGHLY PURE NITRIC ACID
    1.
    发明申请
    METHOD FOR THE PRODUCTION OF HIGHLY PURE NITRIC ACID 审中-公开
    用于高纯硝酸的制备

    公开(公告)号：WO02083554A3

    公开(公告)日：2003-10-02

    申请号：PCT/EP0203422

    申请日：2002-03-27

    Applicant: BASF AG ,  HOFMANN PAUL ,  SANDEN FRANZ JOSEF ,  DOERFLINGER WALTER

    Inventor： HOFMANN PAUL ,  SANDEN FRANZ JOSEF ,  DOERFLINGER WALTER

    IPC: C01B21/46

    CPC classification number: C01B21/46

    Abstract: The invention relates to a novel and improved method for the production of highly pure nitric acid by distillation or rectification of nitric acid, crude nitric acid or mixtures thereof in a column, wherein 85 to 95 percent by weight of nitric acid, crude nitric acid or the mixtures thereof is distilled at temperatures ranging from 70 to 110 DEG C and at a pressure ranging from 0.1 to 2 bar.

    Abstract translation: 因此，在70的温度至110℃通过在由85列蒸馏或硝酸，Rohsalpetersäure或它们的混合物的精馏生产高纯度硝酸至95重量％的硝酸，Rohsalpetersäure或其混合物; C一种新的和改进的方法 蒸馏和0.1至2巴的压力。

    3.
    发明专利
    未知

    公开(公告)号：AT282056T

    公开(公告)日：2004-11-15

    申请号：AT02748813

    申请日：2002-06-24

    Applicant: BASF AG

    Inventor： SCHLITTER STEPHAN ,  SIGWART CHRISTOPH ,  DOERFLINGER WALTER ,  HESSE MICHAEL ,  FISCHER ROLF-HARTMUTH

    IPC: B01J21/16 ,  B01J35/10 ,  C08G65/20 ,  C08G65/26

    Abstract: Polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerization of tetrahydrofuran in the presence of at least one telogen and/or comonomer, which is in the form of shaped catalyst bodies or catalyst particles having a volume of the individual shape of the body or particle of at least 0.05 mm 3 , preferably at least 0.2 mm 3 , in particular 1 mm 3 , and has at least one of the features a) and b): a) a pore radius distribution having at least one maximum in the pore radius range from 100 to 5000 Å, b) a pore volume of catalyst pores having radii of 200-3000 Å of greater than 0.05 cm 3 /g and/or a pore volume of pores having radii of 200-5000 Å of greater than 0.075 cm 3 /g and/or a pore volume of pores having radii of >200 Å of greater than 0.1 cm 3 /g.

    6.
    发明专利
    未知

    公开(公告)号：ES2115787T3

    公开(公告)日：1998-07-01

    申请号：ES94101022

    申请日：1994-01-25

    Applicant: BASF AG

    Inventor： TENTEN ANDREAS DR ,  HAMMON ULRICH DR ,  WEIDLICH PETER DR ,  DOERFLINGER WALTER

    IPC: B01J23/85 ,  B01J23/88 ,  B01J23/92 ,  B01J23/94 ,  B01J38/48 ,  B01J38/52 ,  B01J38/62 ,  B01J38/68 ,  C07C57/055

    Abstract: Process for regenerating spent multimetal oxide oxidation catalysts from catalytic gas-phase oxidations of lower organic compounds, which catalysts, unspent, contain as base constituents the elements Mo, W, V and Cu in oxide form, by the action of oxidising agents and of solubilising aqueous ammonia containing added acetic acid and/or the ammonium salt thereof and subsequent drying and calcination in which, within the process, the content of the metallic constituents is quantitatively determined and supplemented to the respective original value.

    10.
    发明专利
    未知

    公开(公告)号：DE10130782A1

    公开(公告)日：2003-01-02

    申请号：DE10130782

    申请日：2001-06-26

    Applicant: BASF AG

    Inventor： SCHLITTER STEPHAN ,  SIGWART CHRISTOPH ,  DOERFLINGER WALTER ,  HESSE MICHAEL ,  FISCHER ROLF-HARTMUTH

    IPC: B01J21/16 ,  B01J35/10 ,  C08G65/20 ,  C08G65/26

    Abstract: The invention relates to a catalyst for the production of polytetrahydrofuran, polytetrahydrofuran copolymers, diesters or monoesters of said polymers by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer, wherein said catalyst is present in the form of catalyst molded bodies or catalyst particles with a volume of the individual molded bodies or particles of at least 0.05mm , preferably at least 0.2mm , more particularly 1mm . Said catalyst has at least one of characteristics a) and b): a) pore radius distribution with at least a maximum pore distribution in the range of 100-5000 A pore radius, b) pore volume of catalyst pores with radii of 200 - 3000 A bigger than 0.05cm /g and/or radii of 200 - 5000 A bigger than 0.075cm /g and/or a radius of > 200 A bigger than 0.1cm /g.

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