METHOD FOR PRODUCING ISOCYANATES
    1.
    发明申请
    METHOD FOR PRODUCING ISOCYANATES 审中-公开
    制备异氰酸酯的方法

    公开(公告)号:WO2010115908A2

    公开(公告)日:2010-10-14

    申请号:PCT/EP2010054561

    申请日:2010-04-07

    CPC classification number: C07C263/10 C07C263/20 C07C265/00

    Abstract: The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene, optionally in the presence of an inert medium, wherein phosgene and amine are first mixed and are converted in a reactor to form isocyanate, wherein a reaction gas containing isocyanate and hydrogen chloride leaving the reactor is cooled in a quench by adding a liquid quenching medium, wherein a mixture of reaction gas and quenching medium results as a product stream. The walls of the quench are wetted with a liquid substantially completely.

    Abstract translation: 本发明涉及一种通过与光气的相应的胺反应,任选地在惰性介质的存在下制备异氰酸酯的方法,是首先与光气和胺和在反应器中反应以形成异氰酸酯,具有离开反应器的异氰酸酯和含有氯化氢的反应气体中 通过加入液体骤冷介质来冷却骤冷,其中反应气体和骤冷介质的混合物作为产物流形成。 骤冷器的壁基本完全被液体润湿。

    METHOD FOR PRODUCING DIISOCYANATES BY GAS-PHASE PHOSGENATION
    2.
    发明申请
    METHOD FOR PRODUCING DIISOCYANATES BY GAS-PHASE PHOSGENATION 审中-公开
    生产由气相光气化异氰酸酯

    公开(公告)号:WO2011018443A3

    公开(公告)日:2011-04-21

    申请号:PCT/EP2010061574

    申请日:2010-08-10

    CPC classification number: C07C263/10 C01B7/04 Y02P20/129 C07C265/14

    Abstract: The invention relates to a method for producing diisocyanates by gas-phase phosgenation, starting from an educt flow comprising the corresponding diamines and a phosgene, the educt flows each being separately converted to the gas phase and preheated to the reaction temperature of the gas-phase phosgenation, characterized in that waste heat from a plant for producing chlorine by heterogeneous catalyzed oxidation of hydrogen chloride using the Deacon method is used to this end.

    Abstract translation: 提出了一种用于通过气相光气化制备二异氰酸酯的方法,从相应的二胺和起始进料流,其中所述反应物流被各自转换分别成气相和预热到气相光气化,其特征在于,用于该目的的废热从的反应温度含光气 用于生产氯的植物是由Deacon法氯化氢非均相催化氧化使用。

    METHOD FOR PRODUCING ISOCYANATES
    3.
    发明申请
    METHOD FOR PRODUCING ISOCYANATES 审中-公开
    制备异氰酸酯的方法

    公开(公告)号:WO2010052230A3

    公开(公告)日:2010-07-15

    申请号:PCT/EP2009064578

    申请日:2009-11-04

    CPC classification number: C07C263/10 C07C265/14

    Abstract: The invention relates to a method for producing isocyanates by reacting the corresponding amines with phosgene in the gas phase, optionally in the presence of an inert medium, wherein the amine and the phosgene are first mixed and reacted in a reactor to form isocyanate, wherein a reaction gas leaving the reactor and containing isocyanate and hydrochloric acid is cooled in a quench through the addition of a liquid quench medium, whereby a mixture of reaction gas and quench medium results. The amount of quench medium added is made to be such that the temperature of the mixture of the reaction gas and the quench medium, said temperature in equilibrium with the quench, is above the dew point of the gas contained in the quench.

    Abstract translation: 本发明涉及一种方法,用于通过使相应的胺反应,与在气相中的光气进行反应,任选地在惰性介质中,其中所述胺和光气在反应器中首先混合的存在下制备的异氰酸酯,以形成异氰酸酯,具有离开反应器 含异氰酸盐和含氯化氢的反应气体通过加入液体骤冷介质骤冷而冷却,其中形成反应气体和骤冷介质的混合物。 加入的骤冷介质的量使得反应气体和骤冷介质的混合物的骤冷温度高于骤冷中所含气体的露点。

    PROCESS FOR PREPARING POLYISOCYANATES
    4.
    发明申请
    PROCESS FOR PREPARING POLYISOCYANATES 审中-公开
    用于生产多异氰酸酯

    公开(公告)号:WO2012163894A2

    公开(公告)日:2012-12-06

    申请号:PCT/EP2012059993

    申请日:2012-05-29

    CPC classification number: C07C273/1863 C07C263/06 C07C275/14 C07C265/14

    Abstract: The invention provides a multistage process for continuously preparing organic polyisocyanates, preferably diisocyanates, more preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohols to give low molecular weight monomeric polyurethanes and cleaving the latter. The invention further provides a corresponding preparation process in which the polyisocyanates prepared and unutilizable residues are removed at particular reaction stages, and reusable by-products and intermediates are recycled into preceding stages.

    Abstract translation: 本发明涉及一种用于连续制备的有机多异氰酸,二异氰酸酯优选,特别优选的脂族或脂环族二异氰酸酯,通过与碳酸的衍生物和醇的相应的有机多胺在低分子量的单体聚氨酯和它们的裂解反应的多级工艺。 本发明的另一个目的是其制造方法,其中,在特定的反应阶段,多异氰酸酯和不可使用残基隔开和可重复使用的产品和中间产物再循环至前体。

    METHOD FOR PRODUCING ISOCYANATES
    5.
    发明申请
    METHOD FOR PRODUCING ISOCYANATES 审中-公开
    制备异氰酸酯的方法

    公开(公告)号:WO2011036062A2

    公开(公告)日:2011-03-31

    申请号:PCT/EP2010063225

    申请日:2010-09-09

    CPC classification number: C07C263/04 C07C263/06 C07C265/14

    Abstract: The invention relates to a multi-stage method for the continuous production of organic, distillable polyisocyanates, preferably diisocyanates, especially preferably aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with carbonic acid derivatives and alcohol in low-molecular monomer polyurethanes and to the thermal splitting of the latter. During said method, the polyisocyanates produced and unusable residues are separated at specific reaction stages and reusable secondary and intermediate products are recirculated to the initial stages.

    Abstract translation: 本发明涉及一种多级方法连续制备的有机,蒸馏异氰酸酯,优选二异氰酸酯,特别优选的脂族或脂环族二异氰酸酯,通过与碳酸的衍生物和醇的相应的有机多胺在低分子量的单体聚氨酯和它们的热裂解反应,其中在 某些反应阶段,多异氰酸酯制备和可再循环的残留物分离和可重复使用的副产品和中间体在前体中循环使用。

    METHOD AND DEVICE FOR PRODUCING ISOCYANATES
    6.
    发明申请
    METHOD AND DEVICE FOR PRODUCING ISOCYANATES 审中-公开
    制备异氰酸酯的方法和装置

    公开(公告)号:WO2010106131A3

    公开(公告)日:2010-12-29

    申请号:PCT/EP2010053527

    申请日:2010-03-18

    Abstract: The invention relates to a method for producing isocyanates by converting the corresponding amine with phosgene in the gas phase, in the presence of an inert medium as applicable, wherein phosgene and amine are first vaporized and then overheated to reaction temperature, the overheated phosgene and amine are mixed and added to a reactor wherein the phosgene and the amine are converted to isocyanate, wherein the dwell time of the phosgene at temperatures greater than 300°C equals a maximum of 5 sec and/or the temperature of heat transfer surfaces in contact with the phosgene is 20 K above the phosgene temperature to be set at maximum. The invention further relates to a device for producing isocyanates by converting the corresponding amine with phosgene in the gas phase.

    Abstract translation: 本发明涉及一种通过在气相中,与光气使相应的胺反应,任选地在惰性介质的存在下,其中光气与胺第一蒸发,然后进一步过热到一个反应温度,混合过热光气和胺和反应器中制备的异氰酸酯 被供给,其中光气与胺反应以形成异氰酸酯,其中,在温度高于300℃s的光气的停留时间不超过5和/或其中的温度是在与光气的传热表面接触在调整Phosgentemperatur上述最为20K 是。 本发明还涉及一种用于通过使相应的胺与光气在气相中反应来生产异氰酸酯的设备。

    Proceso para la producción de isocianatos

    公开(公告)号:ES2989804T3

    公开(公告)日:2024-11-27

    申请号:ES21766459

    申请日:2021-08-23

    Applicant: BASF SE

    Abstract: La invención se refiere a un proceso para producir isocianatos mediante la reacción de las aminas correspondientes con fosgeno en la fase líquida, que comprende: (a) mezclar una corriente de alimentación que comprende amina, una corriente de alimentación que comprende fosgeno y opcionalmente un disolvente inerte; (b) hacer reaccionar la amina con fosgeno en una primera sección de reacción para obtener una mezcla de reacción intermedia que comprende isocianato, cloruros de carbamoilo, clorhidratos de amina y fosgeno sin reaccionar; (c) escindir los cloruros de carbamoilo y eliminar el fosgeno de la mezcla de reacción intermedia en una segunda sección de reacción para obtener un producto crudo que comprende isocianato, (d) opcionalmente procesar el producto crudo; en donde la reacción (b) se lleva a cabo de tal manera que la mezcla de reacción intermedia comprende de 1,7 a 5 % en moles de clorhidratos de amina sólidos en base a la cantidad molar de amina alimentada al proceso. (Traducción automática con Google Translate, sin valor legal)

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