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    1.
    发明专利
    未知

    公开(公告)号：DE59910534D1

    公开(公告)日：2004-10-21

    申请号：DE59910534

    申请日：1999-10-12

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  STAUFER GUENTER ,  KELLER PETER

    IPC: B01D3/22 ,  B01D3/32 ,  C08F6/10 ,  C08G85/00

    Abstract: Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe ( 201 ) composed of a plurality of pipe sections ( 201 a-d), in which trays ( 202 ) are arranged, connections ( 205, 208 ) for supplying and removing the reaction products and connections ( 206, 207 ) for supplying and removing at least one stripping agent in countercurrent to the reaction products. In accordance with the invention, a plurality of successive trays ( 202 ) in each case are joined to one another and form at least two inserts ( 211 a-c) which can be removed from the column pipe ( 201 ).

    3.
    发明专利
    未知

    公开(公告)号：DE59802657D1

    公开(公告)日：2002-02-21

    申请号：DE59802657

    申请日：1998-08-14

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  HOLTRUP WALTER ,  HEIDER WOLFGANG

    IPC: B01D3/38 ,  B01D19/02 ,  C08F6/00

    Abstract: A process for reducing the foam formation when a dispersion or liquid is treated with steam bya) introduction of steam into the lower region of a column and simultaneous feed of a medium at the top of the column, the steam ascending to the top of the column,b) contacting the medium with the steam, with foam formation,includes the medium fed in stage a) having been generated by mixing a dispersion or liquid with steam in an apparatus, this medium during the feed into the top of the column having a higher temperature than that of the steam which comes into contact with the medium (in stage b)).

    7.
    发明专利
    未知

    公开(公告)号：AT276026T

    公开(公告)日：2004-10-15

    申请号：AT99950707

    申请日：1999-10-12

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  STAUFER GUENTER ,  KELLER PETER

    IPC: B01D3/22 ,  B01D3/32 ,  C08F6/10 ,  C08G85/00

    Abstract: Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe ( 201 ) composed of a plurality of pipe sections ( 201 a-d), in which trays ( 202 ) are arranged, connections ( 205, 208 ) for supplying and removing the reaction products and connections ( 206, 207 ) for supplying and removing at least one stripping agent in countercurrent to the reaction products. In accordance with the invention, a plurality of successive trays ( 202 ) in each case are joined to one another and form at least two inserts ( 211 a-c) which can be removed from the column pipe ( 201 ).

    Continuous on-line determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation using surfactant solution as carrier and flushing liquids in the fractionator
    9.
    发明专利
    Continuous on-line determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation using surfactant solution as carrier and flushing liquids in the fractionator 未知

    公开(公告)号：DE10060098A1

    公开(公告)日：2002-06-06

    申请号：DE10060098

    申请日：2000-12-04

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  KNIERIEM TORSTEN ,  LAMPRECHT JOSEF ,  SCHOLZ NORBERT ,  SCHUCH HORST ,  NORD SIMON

    IPC: G01N15/02 ,  G01N15/14

    Abstract: Continuous determination of particle size distribution in polymer dispersions involves simultaneous optical counting and crossflow fractionation of sample streams diluted with water and surfactant solution, using surfactant solution as carrier in the fractionator and flushing the analyzer section with surfactant solution after every 100 samples at the latest. A method for the continuous determination of particle size distribution (PSD) in polymer dispersions by simultaneous characterization by means of optical counting of single particles and flow-fieldflow fractionation (crossflow fractionation) or hydrodynamic fractionation involves (i) continuously taking a sample stream from a product line, (ii) diluting the sample stream with high-purity water and aqueous surfactant solution to a solid content of 0.3-20 g/l and a surfactant content of 0.1-5 g/l, (iii) taking off a part stream (continuously or discontinuously) and determining the PSD in at least one partial size range between 0.5 and 1000 microns with the aid of single particle analyzer(s) and (iv) taking repeated discontinuous samples from the diluted stream and determining the PSD in at least one size range which includes the range 0.005-2 microns, with the aid of a cross-flow fractionator with UV detector. The carrier liquid used in the fractionator is a surfactant solution with a concentration of 0.1-5 g/l and the analyzer section of the fractionator is washed with a flushing solution containing 2-30 g/l surfactant, at the latest after every 100 repeats of step (iv).

    10.
    发明专利
    未知

    公开(公告)号：BR9914567A

    公开(公告)日：2001-07-03

    申请号：BR9914567

    申请日：1999-10-12

    Applicant: BASF AG

    Inventor： HUEBINGER WOLFGANG ,  STAUFER GUENTER ,  KELLER PETER

    IPC: B01D3/22 ,  B01D3/32 ,  C08F6/10 ,  C08G85/00

    Abstract: Countercurrent stripping pipe for removing volatile organic constituents from reaction products, having a column pipe ( 201 ) composed of a plurality of pipe sections ( 201 a-d), in which trays ( 202 ) are arranged, connections ( 205, 208 ) for supplying and removing the reaction products and connections ( 206, 207 ) for supplying and removing at least one stripping agent in countercurrent to the reaction products. In accordance with the invention, a plurality of successive trays ( 202 ) in each case are joined to one another and form at least two inserts ( 211 a-c) which can be removed from the column pipe ( 201 ).

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