Method for producing propylene oxide
    12.
    发明申请
    Method for producing propylene oxide 有权
    生产环氧丙烷的方法

    公开(公告)号:US20060205964A1

    公开(公告)日:2006-09-14

    申请号:US10553441

    申请日:2004-04-16

    IPC分类号: C07D301/03

    CPC分类号: C07D301/12

    摘要: Process for preparing propylene oxide, which comprises at least the steps (iii) and (iv) (iii) separating off propylene oxide from a mixture (M1) comprising propylene oxide and at least one solvent by distillation in a distillation column, giving a bottom stream and a vapor stream consisting essentially of propylene oxide; (iv) compressing the vapor stream obtained in (iii) by means of at least one compressor to give a compressed vapor.

    摘要翻译: 制备环氧丙烷的方法,其至少包括步骤(iii)和(iv)(iii)通过在蒸馏塔中蒸馏从包含环氧丙烷和至少一种溶剂的混合物(M1)中分离环氧丙烷,得到底部 气流和基本上由环氧丙烷组成的蒸气流; (iv)通过至少一个压缩机压缩(iii)中获得的蒸气流,得到压缩蒸气。

    Returning an olefin which is not reacted during the oxidation of olefins
    15.
    发明申请
    Returning an olefin which is not reacted during the oxidation of olefins 有权
    回收在烯烃氧化过程中不反应的烯烃

    公开(公告)号:US20060058539A1

    公开(公告)日:2006-03-16

    申请号:US10532096

    申请日:2003-10-23

    IPC分类号: C07D301/19

    CPC分类号: C07D301/12

    摘要: The invention relates to a method for continuously returning an olefin which has not been reacted with hydroperoxide in order to form oxiranes during the epoxidation of olefins. Said olefin is contained in the flow of waste gas which is produced during epoxidation. Said method is characterised by the following steps: (i) compressing and cooling the flow of waste gas, (ii) separating the olefin from the flow of waste gas obtained in step (i) by distillation,(iii) epoxidating the olefin separated in (ii) with hydroperoxide.

    摘要翻译: 本发明涉及在烯烃环氧化期间连续返回未与氢过氧化物反应的烯烃以形成环氧乙烷的方法。 所述烯烃包含在环氧化过程中产生的废气流中。 所述方法的特征在于以下步骤:(i)压缩和冷却废气流,(ii)通过蒸馏从步骤(i)获得的废气流中分离烯烃,(iii)将分离的烯烃环氧化 (ii)加氢过氧化物。

    Method for producing propenyl oxide using a secondary reactor comprising several feed and/or outlet points
    17.
    发明申请
    Method for producing propenyl oxide using a secondary reactor comprising several feed and/or outlet points 审中-公开
    使用包含多个进料和/或出口点的二次反应器生产丙烯基氧化物的方法

    公开(公告)号:US20050250955A1

    公开(公告)日:2005-11-10

    申请号:US10521782

    申请日:2003-07-28

    IPC分类号: C07D301/12 C07D301/19

    CPC分类号: C07D301/12

    摘要: Process for preparing oxiranes by reacting an organic compound with a hydroperoxide in the presence of a solvent and a catalyst, which comprises at least the steps (i) to (iii): (i) reaction of the hydroperoxide with the organic compound to give a product mixture comprising the reacted organic compound and unreacted hydroperoxide, (ii) separation of the unreacted hydroperoxide from the mixture resulting from step (i), (iii) reaction of the hydroperoxide which has been separated off in step (ii) with the organic compound, wherein the reaction in step (iii) is carried out in a tube reactor which has at least two feed points for the reaction mixture comprising at least the organic compound, the hydroperoxide and the solvent or at least two outlets for the product mixture, or at least two feed points and at least two outlets.

    摘要翻译: 至少在步骤(ⅰ)至(ⅲ)中,至少包括步骤(ⅰ)至(ⅲ):(i)使有机化合物与氢过氧化物在溶剂和催化剂存在下反应制备环氧乙烷的方法, 包含反应的有机化合物和未反应的氢过氧化物的产物混合物,(ii)从步骤(i),(iii)中得到的混合物中分离出未反应的氢过氧化物,(iii)步骤(ii)中已经分离的氢过氧化物与有机化合物 其中步骤(iii)中的反应在管式反应器中进行,所述管式反应器具有至少两个进料点,所述反应混合物至少包含有机化合物,氢过氧化物和溶剂,或至少两个用于产物混合物的出口,或 至少两个进料点和至少两个出口。