METHOD AND DEVICE FOR PRODUCING ISOCYANATES
    1.
    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。

    METHOD FOR PRODUCING ISOCYANATES
    2.
    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
    3.
    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
    4.
    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。

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