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    Modular catalyst monoliths
    2.
    发明授权
    Modular catalyst monoliths 有权

    公开(公告)号：US10974964B2

    公开(公告)日：2021-04-13

    申请号：US15779347

    申请日：2016-11-18

    Applicant: BASF SE

    Inventor： Gerhard Olbert ,  Jochen Gauer ,  Holger Friedrich ,  Andreas Spiegel ,  Andreas Wölfert ,  Wolfgang Gmeiner ,  Michael Lorenz

    IPC: C01B21/28 ,  B01J19/24 ,  C01B21/26 ,  B01J10/00 ,  C01B21/38

    Abstract: The present invention relates to a reactor R with apparatus D, the latter comprising a gas- and/or liquid-permeable tray B, in the edge region of which there is disposed a lateral boundary W which fully encloses the tray B and forms a volume V comprising catalytic and/or noncatalytic shaped bodies (F), wherein there is at least one braid made of precious metal and/or base metal on the upstream side opposite the tray B, and the catalytic and/or noncatalytic shaped bodies (F) are selected from (i) shaped bodies (F1) in the form of straight prisms, the footprint of which is selected from triangle, rectangle, hexagon or fragments of these polygons, and (ii) a combination of the shaped bodies (F1) with shaped bodies (F2) that are smaller than the shaped bodies (F1), wherein groups of m to n shaped bodies (F1), m and n being an integer from 3 to 30 with n>m, are framed in a metal cassette open in the upstream direction and closed in the downstream direction by a gas-permeable tray, in a virtually seamless manner with side face to side face and with their longitudinal axis aligned in vertical direction, virtually completely covering the cross section of the tray, to form modules (M), and the modules (M), optionally with cooperation of a joint filler material, with vertical alignment of the longitudinal axis of the shaped bodies (F1), are joined to one another virtually seamlessly in a mosaic-like manner.

    Installing monoliths in a reactor for conducting heterogeneously catalyzed gas phase reactions
    6.
    发明授权
    Installing monoliths in a reactor for conducting heterogeneously catalyzed gas phase reactions 有权

    公开(公告)号：US09616406B2

    公开(公告)日：2017-04-11

    申请号：US14180455

    申请日：2014-02-14

    Applicant: BASF SE

    Inventor： Gerhard Olbert ,  Jochen Gauer ,  Arnold Kühling ,  Carlos Tellaeche Herranz

    IPC: B01J19/24

    CPC classification number: B01J19/2485 ,  B01J2219/2438 ,  B01J2219/2443 ,  Y10T29/49826

    Abstract: A method is proposed for installing monoliths (2) each formed of a ceramic block having a multiplicity of mutually parallel channels wherethrough the reaction gas mixture of a heterogeneously catalyzed gas phase reaction can flow in a reactor (1) for conducting heterogeneously catalyzed gas phase reactions, wherein said monoliths (2) are stacked side by side and on top of each other in the reactor interior, wherein the monoliths are sealed off from each other and from the inner wall of said reactor (1) by mats (3) each comprising an intumescent mat which before installation in said reactor (1) were completely enveloped in a polymeric film, wherein the interior enclosed by the polymeric film and containing said mat (3) is evacuated and wherein the interior enclosed by the polymeric film and containing said mat (3) is devacuated after installation in said reactor (1).

    Process for preparing isocyanates
    8.
    发明授权
    Process for preparing isocyanates 有权

    公开(公告)号：US09302983B2

    公开(公告)日：2016-04-05

    申请号：US14546587

    申请日：2014-11-18

    Applicant: BASF SE

    Inventor： Vanessa Simone Lehr ,  Torsten Mattke ,  Carsten Knoesche ,  Heiner Schelling ,  Gerhard Olbert

    IPC: C07C263/10 ,  C01B7/04

    CPC classification number: C07C263/10 ,  C01B7/04 ,  Y02P20/22 ,  C07C265/00

    Abstract: The present invention relates to gas phase phosgenation of amines for preparation of isocyanates. In the present invention, phosgene is prepared by reacting chlorine with an excess of carbon monoxide in a gas phase. The obtained phosgene-containing reaction mixture is divided into two streams by a thermal and/or a membrane separating process. The first stream is a low-carbon monoxide stream of no more than 1% by weight of carbon monoxide, based on a total weight of the first stream. The second stream is a carbon monoxide-rich stream of more than 10% by weight of carbon monoxide, based on a total weight of the second stream. The first stream is used as the phosgene-containing reactant stream in the gas phase phosgenation of amines to prepare isocyanates. The second stream can be recycled into the phosgene synthesis.

    Method for producing isocyanate
    9.
    发明授权
    Method for producing isocyanate 有权
    异氰酸酯的制造方法

    公开(公告)号：US08957245B2

    公开(公告)日：2015-02-17

    申请号：US13761997

    申请日：2013-02-07

    Applicant: BASF SE

    Inventor： Gerhard Olbert ,  Torsten Mattke ,  Carsten Knoesche ,  Andreas Daiss ,  Jens Denecke

    IPC: C07C263/00 ,  B01J12/00 ,  C07C263/10

    CPC classification number: B01J12/00 ,  C07C263/10 ,  C07C265/14

    Abstract: The invention relates to a process for preparing an isocyanate, which involves contacting fluid streams of amine, phosgene and inert medium in at least one mixing device, such that an inert medium stream is metered at least between one amine stream and one phosgene stream within the mixing device, and then reacting an amine with phosgene in a reaction chamber to form an isocyanate. In this process the inert medium stream is metered such that a point of first contact of the amine and the phosgene occurs at a distance from a surface of the mixing device, and a turbulent flow is present in the reaction chamber.

    Abstract translation: 本发明涉及一种制备异氰酸酯的方法，其包括使胺，光气和惰性介质的流体流在至少一个混合装置中接触，使得惰性介质流至少在一个胺流和一个光气流之间计量 混合装置，然后使胺与光气在反应室中反应以形成异氰酸酯。 在该方法中，计量惰性介质流，使得胺和光气的第一次接触点在与混合装置的表面相距一定距离处发生，并且反应室中存在湍流。

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