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。

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