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29 records (took 0.021 seconds)

    13.
    发明专利
    未知

    公开(公告)号：DE50303223D1

    公开(公告)日：2006-06-08

    申请号：DE50303223

    申请日：2003-07-30

    Applicant: BASF AG

    Inventor： DIEHL VOLKER ,  JAEGER ULRICH ,  SCHROEDER JUERGEN ,  THIEL JOACHIM

    IPC: B08B3/08 ,  B08B9/02 ,  C07C57/04

    Abstract: A process for cleaning apparatus in which (meth)acrylic acid-containing organic solvents have been treated and/or generated and contain fouling and/or polymer and residues of organic solvent, in which the apparatus contents are subjected to a steam distillation in the apparatus.

    14.
    发明专利
    未知

    公开(公告)号：DE10337998A1

    公开(公告)日：2005-03-17

    申请号：DE10337998

    申请日：2003-08-19

    Applicant: BASF AG

    Inventor： DIEHL VOLKER ,  RISSEL STEFFEN ,  BERNDT SILKE ,  DUDA MARK ,  EGER KNUT ,  HOELZLE MARKUS ,  NSUNDA VERON

    IPC: B01J8/00 ,  B01J8/06 ,  B65G65/32

    Abstract: A method of charging a vertical tube having an internal diameter of 50 mm or less with catalyst particles, which comprises introducing a filling aid into the vertical tube, where the filling aid comprises a flexible elongated body and the ratio of the cross section of the flexible elongated body to the cross section of the tube is from 0.003 to 0.08, and introducing the catalyst particles into the tube.

    Thermal separation between at least one gaseous and liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column whose surface is sprayed with polymerization inhibitor
    16.
    发明专利
    Thermal separation between at least one gaseous and liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column whose surface is sprayed with polymerization inhibitor 未知

    公开(公告)号：DE10317436A1

    公开(公告)日：2004-10-28

    申请号：DE10317436

    申请日：2003-04-15

    Applicant: BASF AG

    Inventor： DIEHL VOLKER ,  JAEGER ULRICH ,  HAMMON ULRICH ,  SCHROEDER JUERGEN ,  RISSEL STEFFEN

    IPC: B01D3/32 ,  C07C51/44 ,  C07C57/07 ,  B01D3/14 ,  C07C47/22

    Abstract: Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth)acrylic monomers, in a separating column whose separating internals are mass transfer trays, in which the liquid stream comprises polymerization-inhibitor and used for spraying the surface of the separating column. Thermal separating process between at least one gaseous stream ascending in a separating column containing a sequence of mass transfer trays and a liquid stream descending in the separating column and comprising dissolved polymerization inhibitor, at least one of the streams comprising (meth)acrylic monomers, and the inner surface of the separating column being sprayed with the liquid stream descending in the separating column and comprising dissolved polymerization inhibitor, and the separating column having internals of whose surface at least parts are in the shadow region of the sprayed descending liquid stream, where parts of the surface of the internals which are in the shadow of the sprayed descending liquid stream are removed from the shadow region by being covered. An independent claim is also included for a separating column containing a sequence of mass transfer trays and installed as support elements, covered double-T supports and/or covered U-shaped supports.

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