METHOD FOR PRODUCING PROPYLENE OXIDE
    81.
    发明申请
    METHOD FOR PRODUCING PROPYLENE OXIDE 有权
    生产丙烯氧化物的方法

    公开(公告)号:US20100003173A1

    公开(公告)日:2010-01-07

    申请号:US12556961

    申请日:2009-09-10

    IPC分类号: B01J8/02 B01J29/06

    CPC分类号: C07D301/12 Y02P20/52

    摘要: Process for preparing propylene oxide, which comprises at least the steps (i) and (ii): (i) providing a catalyst comprising at least one porous oxidic material; (ii) reacting propene with a hydroperoxide in at least one nitrile as solvent or in a solvent mixture comprising at least one nitrile in the presence of the catalyst of (i), wherein the at least one porous oxidic material is a zeolite which is assigned X-ray-crystallographically to the MWW type.

    摘要翻译: 制备环氧丙烷的方法,其至少包括步骤(i)和(ii):(i)提供包含至少一种多孔氧化物质的催化剂; (ii)使丙烯与至少一种腈作为溶剂中的氢过氧化物反应或在包含至少一种腈的溶剂混合物中,在(i)的催化剂存在下反应,其中所述至少一种多孔氧化物质是被分配的沸石 X射线晶体学到MWW型。

    Method for producing an alkene oxide
    85.
    发明授权
    Method for producing an alkene oxide 失效
    烯烃生产方法

    公开(公告)号:US07408074B2

    公开(公告)日:2008-08-05

    申请号:US10553516

    申请日:2004-04-16

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12

    摘要: Process for preparing an alkene oxide, which comprises at least the steps (i), (ii) and (v): (i) providing a stream S1 comprising compressed, liquid alkene; (ii) depressurizing at least part of the stream S1 with absorption of heat and with at least partial vaporization of the liquid alkene; (v) reacting the alkene obtained in (ii) with a hydroperoxide in the presence of at least one solvent and at least one catalyst to give a mixture comprising alkene oxide and the solvent or solvents.

    摘要翻译: 制备氧化烯的方法,其至少包括步骤(i),(ii)和(v):(i)提供包含压缩的液体烯烃的料流S1; (ii)吸收热量并至少部分汽化液态烯烃使至少部分流S1减压; (v)使(ii)中获得的烯烃与至少一种溶剂和至少一种催化剂存在下的氢过氧化物反应,得到包含烯烃氧化物和溶剂或溶剂的混合物。

    Method for the online determination of hydrogen peroxide
    86.
    发明授权
    Method for the online determination of hydrogen peroxide 有权
    在线测定过氧化氢的方法

    公开(公告)号:US07351587B2

    公开(公告)日:2008-04-01

    申请号:US10467278

    申请日:2002-02-05

    CPC分类号: G01N21/75 Y10T436/206664

    摘要: A process for the on-line determination of the hydrogen peroxide content of a mixture obtained in a chemical reaction comprises at least the following steps: (1) admixing the mixture comprising hydrogen peroxide with at least one reagent which is capable of forming a substance which can be detected by optical methods on reaction with hydrogen peroxide, so as to form this substance, (2) determining the amount of the substance present by measuring its specific absorption in an appropriate wavelength range.

    摘要翻译: 用于在线测定化学反应中获得的混合物中过氧化氢含量的方法至少包括以下步骤:(1)将包含过氧化氢的混合物与至少一种能够形成物质的试剂混合, 可以通过与过氧化氢反应的光学方法检测,从而形成该物质,(2)通过在适当的波长范围内测量其比吸收来测定物质的存在量。