METHOD FOR PRODUCING OXIDIZED OLEFIN THROUGH OLEFIN EPOXIDATION
    1.
    发明申请
    METHOD FOR PRODUCING OXIDIZED OLEFIN THROUGH OLEFIN EPOXIDATION 有权
    通过烯烃环氧化生产氧化烯烃的方法

    公开(公告)号:US20130211112A1

    公开(公告)日:2013-08-15

    申请号:US13878659

    申请日:2011-10-11

    IPC分类号: C07D301/12

    CPC分类号: C07D301/12 C07D303/04

    摘要: A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H2O2 is subjected to an epoxidation in one or more fixed bed reactors and/or one or more moving bed reactors until the conversion of H2O2 reaches 50%-95%, then, optionally, the resulting reaction mixture obtained in the step (1) is subjected to a separation to obtain a first stream free of H2O2 and a second stream containing the unreacted H2O2, and the olefin is introduced to the second stream to produce a second mixed stream, or optionally, the olefin is introduced to the reaction mixture obtained in the step (1) to produce a second mixed stream; (2) in a second olefin epoxidation condition, the reaction mixture obtained in the step (1) or the second mixed stream obtained in the step (1) and a second solid catalyst are introduced to one or more slurry bed reactors to conduct an epoxidation until the total conversion of H2O2 reaches 98% or more, with a proviso that said process for producing the alkylene oxide by olefin epoxidation has an selectivity for the alkylene oxide of 90% or more.The process of the present invention combines the slurry bed reactor with the fixed bed reactor and/or the moving bed reactor so as to overcome the disadvantages of the low conversion of H2O2 in the case that only the fixed bed reactor and/or the moving bed reactor are used, and the low selectivity for the target alkylene oxide in the case that only the slurry bed reactor is used.

    摘要翻译: 一种通过烯烃环氧化生产烯化氧的方法,其中所述方法包括以下步骤:(1)在第一烯烃环氧化条件下,在第一固体催化剂存在下,将含有溶剂,烯烃和H 2 O 2的第一混合物流 在一个或多个固定床反应器和/或一个或多个移动床反应器中进行环氧化,直到H 2 O 2的转化率达到50%-95%,然后,任选地,将在步骤(1)中获得的所得反应混合物 以分离以获得不含H 2 O 2的第一物流和含有未反应的H 2 O 2的第二物流,并将烯烃引入第二物流以产生第二混合物流,或任选地将烯烃引入到 步骤(1)以产生第二混合流; (2)在第二烯烃环氧化条件下,将步骤(1)中获得的反应混合物或步骤(1)中获得的第二混合物流和第二固体催化剂引入一个或多个淤浆床反应器中进行环氧化 直到H 2 O 2的总转化率达到98%以上,条件是通过烯烃环氧化生产环氧烷烃的方法对环氧烷烃的选择性为90%以上。 本发明的方法将淤浆床反应器与固定床反应器和/或移动床反应器结合,以克服在只有固定床反应器和/或移动床的情况下H 2 O 2转化率低的缺点 使用反应器,在仅使用浆料床反应器的情况下对目标烯化氧的选择性低。

    Process for producing an alkylene oxide by olefin epoxidation
    2.
    发明授权
    Process for producing an alkylene oxide by olefin epoxidation 有权
    通过烯烃环氧化制备烯化氧的方法

    公开(公告)号:US08859791B2

    公开(公告)日:2014-10-14

    申请号:US13878659

    申请日:2011-10-11

    IPC分类号: C07D301/12 C07D303/04

    CPC分类号: C07D301/12 C07D303/04

    摘要: A process for producing an alkylene oxide by olefin epoxidation, wherein said process comprises the steps of: (1) in a first olefin epoxidation condition, in the presence of a first solid catalyst, a first mixed stream containing a solvent, an olefin and H2O2 is subjected to an epoxidation in one or more fixed bed reactors and/or one or more moving bed reactors until the conversion of H2O2 reaches 50%-95%, then, optionally, the resulting reaction mixture obtained in the step (1) is subjected to a separation to obtain a first stream free of H2O2 and a second stream containing the unreacted H2O2, and the olefin is introduced to the second stream to produce a second mixed stream, or optionally, the olefin is introduced to the reaction mixture obtained in the step (1) to produce a second mixed stream; (2) in a second olefin epoxidation condition, the reaction mixture obtained in the step (1) or the second mixed stream obtained in the step (1) and a second solid catalyst are introduced to one or more slurry bed reactors to conduct an epoxidation until the total conversion of H2O2 reaches 98% or more, with a proviso that said process for producing the alkylene oxide by olefin epoxidation has an selectivity for the alkylene oxide of 90% or more.The process of the present invention combines the slurry bed reactor with the fixed bed reactor and/or the moving bed reactor so as to overcome the disadvantages of the low conversion of H2O2 in the case that only the fixed bed reactor and/or the moving bed reactor are used, and the low selectivity for the target alkylene oxide in the case that only the slurry bed reactor is used.

    摘要翻译: 一种通过烯烃环氧化生产烯化氧的方法,其中所述方法包括以下步骤:(1)在第一烯烃环氧化条件下,在第一固体催化剂存在下,将含有溶剂,烯烃和H 2 O 2的第一混合物流 在一个或多个固定床反应器和/或一个或多个移动床反应器中进行环氧化,直到H 2 O 2的转化率达到50%-95%,然后,任选地,将在步骤(1)中获得的所得反应混合物 以分离以获得不含H 2 O 2的第一物流和含有未反应的H 2 O 2的第二物流,并将烯烃引入第二物流以产生第二混合物流,或任选地将烯烃引入到 步骤(1)以产生第二混合流; (2)在第二烯烃环氧化条件下,将步骤(1)中获得的反应混合物或步骤(1)中获得的第二混合物流和第二固体催化剂引入一个或多个淤浆床反应器中进行环氧化 直到H 2 O 2的总转化率达到98%以上,条件是通过烯烃环氧化生产环氧烷烃的方法对环氧烷烃的选择性为90%以上。 本发明的方法将淤浆床反应器与固定床反应器和/或移动床反应器结合,以克服在只有固定床反应器和/或移动床的情况下H 2 O 2转化率低的缺点 使用反应器,在仅使用浆料床反应器的情况下对目标烯化氧的选择性低。

    Titanium-silicalite molecular sieve and the method for its preparation
    5.
    发明授权
    Titanium-silicalite molecular sieve and the method for its preparation 有权
    钛 - 硅沸石分子筛及其制备方法

    公开(公告)号:US06475465B2

    公开(公告)日:2002-11-05

    申请号:US09732100

    申请日:2000-12-06

    IPC分类号: C01B3700

    CPC分类号: C01B37/005 Y10S423/22

    摘要: The present invention relates to a titanium-silicalite (TS-1) molecular sieve and the method for preparation of the same, wherein each crystallite of said titanium-silicalite molecular sieve has a hollow cavity with a radial length of 5-300 nm. The benzene adsorption capacity of the molecular sieve determined at 25° C. and P/P0=0.10 for 1 hour is at least 70 mg/g; and the method for preparation of said molecular sieve comprises an acid-treatment and then an organic-base treatment of the synthesized TS-1 molecular sieve, or only an organic-base treatment. The TS-1 molecular sieve of the present invention has a relatively high reactivity and activity stability in the catalytic oxidation.

    摘要翻译: 本发明涉及钛 - 硅沸石(TS-1)分子筛及其制备方法,其中所述钛 - 硅沸石分子筛的每个微晶具有径向长度为5-300nm的中空腔。 在25℃和P / P0 = 0.10下测定1小时的分子筛的苯吸附能力为至少70mg / g; 并且所述分子筛的制备方法包括对所合成的TS-1分子筛进行酸处理,然后进行有机碱处理,或仅进行有机碱处理。 本发明的TS-1分子筛在催化氧化中具有较高的反应活性和活性稳定性。

    PROCESS OF EPOXIDISING CYCLOHEXANE
    6.
    发明申请
    PROCESS OF EPOXIDISING CYCLOHEXANE 有权
    环氧环氧化物的过程

    公开(公告)号:US20140088327A1

    公开(公告)日:2014-03-27

    申请号:US14115754

    申请日:2012-05-02

    IPC分类号: C07C27/16

    摘要: A process of oxidizing cyclohexane, comprising feeding cyclohexane, an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact, and providing all or most of the oxidation product at the reaction zone bottom, wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst. The process of oxidizing cyclohexane according to the present invention carries out the oxidation in the reaction zone, which, firstly, utilizes the latent heat from reaction sufficiently so as to achieve energy-saving; secondly, increases the yield of target product and the availability of oxidizer; and thirdly, allows the separation of the oxidation product from the raw material cyclohexane as the reaction proceeds, such that the cost for subsequent separations can be saved.

    摘要翻译: 一种氧化环己烷的方法,包括在用于接触的氧化反应条件下,将环己烷,过氧化氢水溶液和任选的有机溶剂通过其进料入口进入反应区,并在反应区提供全部或大部分氧化产物 底部,其中反应区中的一部分或全部填料是含硅酸钛分子筛的催化剂。 本发明环氧化合物的处理在反应区进行氧化,首先利用充分的反应潜热,达到节能; 其次,提高目标产品的产量和氧化剂的可用性; 第三,随着反应进行,允许氧化产物与原料环己烷分离,从而可以节省后续分离的成本。

    Process of oxidizing cyclohexane
    7.
    发明授权
    Process of oxidizing cyclohexane 有权
    氧化环己烷的方法

    公开(公告)号:US08940939B2

    公开(公告)日:2015-01-27

    申请号:US14115754

    申请日:2012-05-02

    IPC分类号: C07C45/28 C07C27/16 C07C29/48

    摘要: A process of oxidizing cyclohexane, comprising feeding cyclohexane, an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact, and providing all or most of the oxidation product at the reaction zone bottom, wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst. The process of oxidizing cyclohexane according to the present invention carries out the oxidation in the reaction zone, which, firstly, utilizes the latent heat from reaction sufficiently so as to achieve energy-saving; secondly, increases the yield of target product and the availability of oxidizer; and thirdly, allows the separation of the oxidation product from the raw material cyclohexane as the reaction proceeds, such that the cost for subsequent separations can be saved.

    摘要翻译: 一种氧化环己烷的方法,包括在用于接触的氧化反应条件下,将环己烷,过氧化氢水溶液和任选的有机溶剂通过其进料入口进入反应区,并在反应区提供全部或大部分氧化产物 底部,其中反应区中的一部分或全部填料是含硅酸钛分子筛的催化剂。 本发明环氧化合物的处理在反应区进行氧化,首先利用充分的反应潜热,达到节能; 其次,提高目标产品的产量和氧化剂的可用性; 第三,随着反应进行,允许氧化产物与原料环己烷分离,从而可以节省后续分离的成本。

    METHOD FOR DETERMINING HYDRAULIC PARAMETERS AND WATER INFLOW IN EROSION STAGE OF GRAVEL SOIL

    公开(公告)号:US20220307964A1

    公开(公告)日:2022-09-29

    申请号:US17458604

    申请日:2021-08-27

    IPC分类号: G01N15/08 G01V9/00 G01N33/24

    摘要: The invention discloses method for determining hydraulic parameters and water inflow in the erosion stage of gravel soil, comprising: calculate the soil particle content P and the soil porosity n of each grade of particle size a, and draw the PSD curve of each grade of particle size and the soil particle content P of each grade of particle size and the PSD curve cluster of each grade of particle size and the soil particle content P of each grade of particle size in each erosion stage; calculate the equivalent diameter Dh of the soil particle, and calculate the minimum equivalent pore diameter d0 of the soil particle; calculate the critical hydraulic gradient icr of particle erosion at each stage; calculate the permeability coefficient kh; calculate the seepage flow velocity ν and the total seepage flow Q.

    Overlay human interactive proof system and techniques
    9.
    发明授权
    Overlay human interactive proof system and techniques 有权
    覆盖人​​类互动证明系统和技术

    公开(公告)号:US08935767B2

    公开(公告)日:2015-01-13

    申请号:US12780013

    申请日:2010-05-14

    摘要: The overlay human interactive proof system (“OHIPS”) and techniques described herein operate in conjunction with any known or later developed computer-based applications or services to provide secure access to resources by reliably differentiating between human and non-human users. Humans have a generally superior ability to differentiate misaligned characters or objects from correctly aligned ones. As such, the OHIP splits an image including one or more visual objects into two or more partial images to form a HIP. The partial images may also be further split into groups of sub-partial images, and/or the partial images (or the sub-partial images) may be moved, so that at any given alignment position, a user can recognize only some visual objects. A user is instructed to reassemble the partial images at one or more predetermined alignment positions using a GUI, and the user is asked to identify information regarding one or more visible objects.

    摘要翻译: 覆盖人​​类交互式证明系统(“OHIPS”)和本文所描述的技术与任何已知或未来开发的基于计算机的应用或服务相结合,通过可靠地区分人和非人类用户来提供对资源的安全访问。 人类具有一般优越的能力来区分不正确的字符或对象与正确对齐的字符或对象。 因此,OHIP将包括一个或多个可视对象的图像分割成两个或更多个部分图像以形成HIP。 部分图像还可以进一步分割成一组子部分图像,和/或部分图像(或子部分图像)可以被移动,使得在任何给定的对准位置,用户只能识别一些视觉对象 。 指示用户使用GUI重新组装在一个或多个预定对准位置处的部分图像,并且要求用户识别关于一个或多个可见对象的信息。

    Disassembling an executable binary
    10.
    发明授权
    Disassembling an executable binary 有权
    拆卸可执行二进制文件

    公开(公告)号:US08869109B2

    公开(公告)日:2014-10-21

    申请号:US12050159

    申请日:2008-03-17

    IPC分类号: G06F9/44 G06F9/45 G06F11/00

    CPC分类号: G06F8/53

    摘要: A method for disassembling an executable binary (binary). In one implementation, a plurality of potential address references may be identified based on the binary and a plurality of storage addresses containing the binary. A plurality of assembler source code instructions (instructions) may be generated by disassembling the binary. The binary may be disassembled at one or more sequential addresses starting at each of the plurality of potential address references.

    摘要翻译: 一种拆卸可执行二进制(二进制)的方法。 在一个实现中,可以基于二进制和多个包含二进制的存储地址来识别多个潜在地址引用。 可以通过拆卸二进制来生成多个汇编源代码指令(指令)。 二进制码可以在从多个潜在地址引用中的每一个开始的一个或多个顺序地址处被分解。