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    5.
    发明专利
    未知

    公开(公告)号：DE102005038037A1

    公开(公告)日：2007-02-15

    申请号：DE102005038037

    申请日：2005-08-09

    Applicant: BASF AG

    Inventor： LOTH WOLFGANG ,  SEIDL VOLKER ,  BRUHNS STEFAN ,  HUNGENBERG KLAUS-DIETER ,  KOCH JUERGEN ,  SCHADE CHRISTIAN ,  SCHWITTAY CLAUDIUS

    IPC: C08F2/12 ,  C08F2/02 ,  C08F112/08

    Abstract: The invention relates to a process for continuously preparing styrene polymers by anionic spray polymerization, which comprises i) styrene and the initiator solution being mixed in a dynamic or static mixer and then the mixture being sprayed, ii) the resultant droplets passing from the liquid monomer state to the melted polymer state during their free fall in the spraying tower, iii) the melt droplets being collected as a melt at the foot of the tower, the melt having a monomer content of below 1%, preferably below 0.1% (

    Continuous method for producing polyamides from aminonitriles.
    6.
    发明专利
    Continuous method for producing polyamides from aminonitriles. 未知

    公开(公告)号：ZA200301089B

    公开(公告)日：2004-04-21

    申请号：ZA200301089

    申请日：2003-02-10

    Applicant: BASF AG

    Inventor： BASLER PETER ,  FISCHER ROLF-HARTMUTH ,  LOTH WOLFGANG ,  WINTERLING HELMUT

    IPC: C08G69/04 ,  C08G69/00 ,  C08G69/08 ,  C08G69/16 ,  C08G

    Abstract: The continuous process for preparing a polyamide by reacting at least one aminonitrile with water comprises:(1) reacting at least one aminonitrile with water in the presence of an organic liquid diluent at from 90 to 400° C. and from 0.1 to 35x10 Pa in a flow tube containing a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, to obtain a reaction mixture,(2) further reacting the reaction mixture at from 150 to 400° C. and a pressure which is lower than the pressure in stage 1 in the presence of a Brönsted acid catalyst selected from a beta-zeolite catalyst, a sheet-silicate catalyst or a titanium dioxide catalyst comprising from 70 to 100% by weight of anatase and from 0 to 30% by weight of rutile and in which up to 40% by weight of the titanium dioxide may be replaced by tungsten oxide, the temperature and pressure being selected so as to obtain a first gas phase and a first liquid phase or a first solid phase or a mixture of first solid and first liquid phases and so that the first gas phase is separated from the first liquid phase or first solid phase or from the mixture of first liquid and first solid phases, and(3) admixing the first liquid or the first solid phase or the mixture of first liquid and first solid phases with a gaseous or liquid phase comprising water at from 150 to 370° C. and from 0.1 to 30x10 Pa, to obtain a product mixture.

    7.
    发明专利
    未知

    公开(公告)号：ES2197710T3

    公开(公告)日：2004-01-01

    申请号：ES99967007

    申请日：1999-12-24

    Applicant: BASF AG

    Inventor： HUFFER STEPHAN ,  KREBS THILO ,  LOTH WOLFGANG ,  RUMPF BERND ,  STURM JURGEN ,  DIEBOLD BERND

    IPC: C08F2/01 ,  C08F10/00 ,  C23C18/16 ,  C23C18/31 ,  C23C18/34 ,  C23C18/36 ,  C23C18/40 ,  C23C18/48 ,  C23C18/50 ,  C23C18/52 ,  F28F19/02 ,  F28F19/06

    Abstract: The present invention relates to a process for coating apparatuses and apparatus parts for chemical plant construction-which are taken to mean, for example, apparatus, tank and reactor walls, discharge devices, valves, pumps, filters, compressors, centrifuges, columns, dryers, comminution machines, internals, packing elements and mixing elements-wherein a metal layer or a metal/polymer dispersion layer is deposited in an electroless manner on the apparatus(es) or apparatus part(s) to be coated by bringing the parts into contact with a metal electrolyte solution which, in addition to the metal electrolyte, comprises a reducing agent and optionally the polymer or polymer mixture to be deposited in dispersed form, where at least one polymer is halogenated.

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