METHOD FOR PRODUCING PHOSGENE
    2.
    发明公开

    公开(公告)号:US20240269634A1

    公开(公告)日:2024-08-15

    申请号:US18562358

    申请日:2022-05-24

    Applicant: BASF SE

    Abstract: The invention relates to a process for producing phosgene by gas phase reaction of carbon monoxide and chlorine in the presence of a solid-state catalyst in a shell-and-tube reactor (1) comprising catalyst tubes (3) which are surrounded by a reactor shell (23) and which accommodate the solid-state catalyst and around which a temperature control medium flows, and baffle plates (27) arranged at right angles to the catalyst tubes (3) in order to generate crossflow of the temperature control medium with respect to the catalyst tubes (3), comprising the following steps:



    (a) feeding a gas mixture comprising carbon monoxide and chlorine into the shell-and-tube reactor (1), such that the reaction mixture enters the catalyst tubes (3) at one end;
    (b) reacting the carbon monoxide with chlorine to give phosgene in the catalyst tubes (3) to give a phosgene-containing product stream;
    (c) withdrawing the phosgene-containing product stream from the shell-and-tube reactor (1),
    wherein the amount of liquid temperature control medium in the shell-and-tube reactor (1) is sufficiently large that the temperature of the temperature control medium in the event of failure of the temperature control medium flow reaches the normal boiling point of the temperature control medium no earlier than after 90 s.

    HOLLOW SPHERICAL GLASS PARTICLES
    3.
    发明申请

    公开(公告)号:US20210284563A1

    公开(公告)日:2021-09-16

    申请号:US17263429

    申请日:2019-07-24

    Applicant: BASF SE

    Abstract: The present invention is directed to hollow aluminosilicate glass particles and a process for the production thereof. Further, the present invention is directed to an article comprising said hollow aluminosilicate glass particles as well as the use of said particles as a filler for high temperature products, molten metal, injection moulded synthetic materials, flame-retardant insulating foams, cement slurries, mortars, concretes and oil field applications.

    BASKET-LIKE DEVICE HAVING WALL INSULATION
    4.
    发明申请
    BASKET-LIKE DEVICE HAVING WALL INSULATION 有权
    具有墙壁绝缘的篮式设备

    公开(公告)号:US20160200575A1

    公开(公告)日:2016-07-14

    申请号:US14911952

    申请日:2014-08-06

    Applicant: BASF SE

    Abstract: A device D accommodated in a reactor R and containing a gas- and/or liquid-permeable bottom B, in the peripheral region of which is arranged a lateral boundary W which completely surrounds the bottom B and forms a volume V which is partially or completely filled with catalytic and/or non-catalytic moldings, there optionally being located on the side facing the bottom B in the upstream direction at least one noble metal and/or non-noble metal fabric, wherein a thermal insulation layer S is located on at least part of the surface of the inner side of the lateral boundary W of the device D, the material for the thermal insulation layer S being selected from the group consisting of ceramic material, microporous material and silicate fibers.

    Abstract translation: 容纳在反应器R中并且包含气体和/或液体可渗透底部B的装置D布置在其周边区域中,该侧部边缘W完全围绕底部B并形成部分或完全的体积V 填充有催化和/或非催化模制品,任选地在上游方向上位于面向底部B的一侧上的至少一种贵金属和/或非贵金属织物,其中绝热层S位于 装置D的横向边界W的内侧表面的最小部分,绝热层S的材料选自陶瓷材料,微孔材料和硅酸盐纤维。

    PROCESS AND REACTOR FOR PRODUCING PHOSGENE

    公开(公告)号:US20230074789A1

    公开(公告)日:2023-03-09

    申请号:US17797736

    申请日:2021-01-26

    Applicant: BASF SE

    Abstract: The invention relates to a process for producing phosgene by gas phase reaction of carbon monoxide and chlorine in the presence of a catalyst in a reactor that comprises a plurality of contact tubes arranged parallel to one another, which contact tubes are filled with the catalyst and around which at least one fluid heat transfer medium flows, a feed stream of a mixture of a chlorine input stream and a carbon monoxide input stream being conducted into the contact tubes and reacted to form a phosgene-containing product gas mixture, characterised in that the product gas mixture is discharged from the contact tubes at an outlet end of the contact tubes. The method according to the invention is characterised in that the gas phase reaction is carried out in the reactor such that the position of the highest temperature in a contact tube (hot spot) moves along the longitudinal axis of the contact tube at a predetermined rate of migration, the hot spot having a rate of migration in the longitudinal direction of the contact tubes which is in the range of 1 to 50 mm per day. The invention also relates to a reactor for carrying out the process.

    PROCESS FOR PREPARING ISOCYANATES
    7.
    发明申请
    PROCESS FOR PREPARING ISOCYANATES 审中-公开
    制备异氰酸酯的方法

    公开(公告)号:US20150080600A1

    公开(公告)日:2015-03-19

    申请号:US14546587

    申请日:2014-11-18

    Applicant: BASF SE

    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.

    Abstract translation: 本发明涉及用于制备异氰酸酯的胺的气相光气化。 在本发明中,气相中的氯与过量的一氧化碳反应制备光气。 得到的含有光气的反应混合物通过热和/或膜分离方法分成两股。 基于第一料流的总重量,第一料流是不超过1重量%的一氧化碳的低碳一氧化碳流。 基于第二料流的总重量,第二料流是大于10重量%的一氧化碳的一氧化碳浓缩物流。 在胺的气相光气化中,将第一流用作含有光气的反应物流,以制备异氰酸酯。 第二流可以再循环进入光气合成。

    PROCESS OF MANUFACTURING HOLLOW SPHERICAL GLASS PARTICLES

    公开(公告)号:US20230110412A1

    公开(公告)日:2023-04-13

    申请号:US17793987

    申请日:2021-01-13

    Applicant: BASF SE

    Abstract: Process for the preparation of hollow spherical glass particles comprising at least SiO2, Al2O3, and an alkali metal oxide, wherein the process comprises the preparation of precursor particles comprising at least SiO2, Al2O3, and an alkali metal oxide by mixing the starting materials, slurrying the starting materials with water followed by spry-drying and heat-treating the obtained precursor-particles at a temperature from 1000° C. to 1800° C., preferably from 1300° C. to 1600° C. by contacting the precursor particles with at least one naked flame.

    MODULAR CATALYST MONOLITHS
    10.
    发明申请

    公开(公告)号:US20180305210A1

    公开(公告)日:2018-10-25

    申请号:US15779347

    申请日:2016-11-18

    Applicant: BASF SE

    CPC classification number: C01B21/28 B01J10/007 B01J19/2485 C01B21/26 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 such

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