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    HIGH CONCENTRATION SILVER SOLUTIONS FOR ETHYLENE OXIDE CATALYST PREPARATION
    74.
    发明申请
    HIGH CONCENTRATION SILVER SOLUTIONS FOR ETHYLENE OXIDE CATALYST PREPARATION 审中-公开
    用于乙烯氧化物催化剂制备的高浓度银溶液

    公开(公告)号：US20150174554A1

    公开(公告)日：2015-06-25

    申请号：US14575035

    申请日：2014-12-18

    Applicant: Scientific Design Company, Inc.

    Inventor： Lixin Cao ,  Andrzej Rokicki

    IPC: B01J23/68

    CPC classification number: B01J23/688 ,  B01J23/50 ,  B01J31/00 ,  B01J35/1009 ,  B01J37/0203 ,  B01J37/0207 ,  B01J37/0213 ,  B01J37/06

    Abstract: A silver impregnation solution comprising: (i) silver ions, (ii) a silver concentration enhancer selected from at least one ammonium salt having an anionic component that is thermally decomposable; or at least one amino acid, or a combination thereof, (iii) at least one organic amine; and (iv) water; wherein said components (i)-(iii) are dissolved in said impregnation solution, and oxalic acid may or may not be included. The silver impregnation solution can achieve significantly higher silver concentrations, including at least or above 33, 34, or 35 wt %. Methods for producing a silver catalyst by silver impregnation of a refractory support followed by calcination are also described. The resulting silver catalysts possess high silver loadings of typically at least 17, 18, or 19 wt %.

    Abstract translation: 一种银浸渍溶液，其包含：（i）银离子，（ii）选自至少一种具有可分解阴离子组分的铵盐的银浓度增强剂; 或至少一种氨基酸，或其组合，（iii）至少一种有机胺; 和（iv）水; 其中所述组分（i） - （iii）溶解在所述浸渍溶液中，并且可以不包括草酸。 银浸渍溶液可以获得显着更高的银浓度，包括至少或高于33,34或35重量％。 还描述了通过浸渍耐火载体然后煅烧来生产银催化剂的方法。 所得到的银催化剂具有通常至少17,18或19重量％的高银负载量。

    CARRIER TREATMENT TO IMPROVE CATALYTIC PERFORMANCE OF AN ETHYLENE OXIDE CATALYST
    75.
    发明申请
    CARRIER TREATMENT TO IMPROVE CATALYTIC PERFORMANCE OF AN ETHYLENE OXIDE CATALYST 有权
    载体处理提高乙烯氧化物催化剂的催化性能

    公开(公告)号：US20140343306A1

    公开(公告)日：2014-11-20

    申请号：US14279534

    申请日：2014-05-16

    Applicant: SCIENTIFIC DESIGN COMPANY, INC.

    Inventor： Nabil Rizkalla ,  Andrzej Rokicki

    IPC: B01J23/50 ,  C07D301/10 ,  B01J21/04

    CPC classification number: C07D301/10 ,  B01J21/04 ,  B01J23/50 ,  B01J23/66 ,  B01J23/688 ,  B01J37/0201 ,  B01J37/0207 ,  B01J37/06 ,  C01F7/02

    Abstract: A method for lowering the sodium content of different carriers which may have different physical properties as well as varying degrees of sodium is provided. The method, which lowers the sodium content from the surface, subsurface as well as the binding layer of the carrier, includes contacting a carrier with water. A rinse solution is recovered from the contacting. The rinse solution includes leached sodium from the carrier. The sodium content in the rinse solution is then determined. The contacting, recovering and determining are repeated until a steady state in the sodium content is achieved.

    Abstract translation: 提供了降低可能具有不同物理性质以及不同程度的钠的不同载体的钠含量的方法。 降低表面，地下以及载体结合层的钠含量的方法包括使载体与水接触。 从接触中回收漂洗溶液。 冲洗溶液包括从载体中浸出的钠。 然后确定冲洗溶液中的钠含量。 重复接触，回收和测定，直到达到钠含量的稳定状态。

    EPOXIDATION PROCESS
    76.
    发明申请
    EPOXIDATION PROCESS 有权
    环氧化工艺

    公开(公告)号：US20140031568A1

    公开(公告)日：2014-01-30

    申请号：US13950973

    申请日：2013-07-25

    Applicant: Scientific Design Company, Inc.

    Inventor： Andrzej Rokicki ,  Jason Durand ,  Rudy Anthony Morin ,  Wojciech Suchanek

    IPC: C07D301/10 ,  B01J7/00

    CPC classification number: C07D301/10 ,  B01J7/00 ,  B01J21/04 ,  B01J23/50 ,  B01J23/96 ,  B01J35/0013 ,  B01J35/006 ,  B01J35/1019 ,  B01J35/1038 ,  B01J35/1061 ,  B01J37/0201 ,  B01J37/0203 ,  B01J37/08 ,  B01J38/12 ,  Y02P20/52 ,  Y02P20/584

    Abstract: A method for producing ethylene oxide comprising: providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; contacting the one or more feed components with a desulfurization catalyst comprising a high surface area support and an amount of silver, wherein at least 20% of the silver is present as oxidized silver; and contacting the one or more feed components with a silver-containing epoxidation catalyst disposed inside an ethylene oxide reactor to form a reaction gas comprising ethylene oxide.

    Abstract translation: 一种生产环氧乙烷的方法，包括：提供一种或多种进料组分，其中所述一种或多种进料组分至少包含通过使乙醇脱水得到的乙烯; 使一种或多种进料组分与包含高表面积载体和一定量的银的脱硫催化剂接触，其中至少20％的银以氧化银的形式存在; 并使一种或多种进料组分与设置在环氧乙烷反应器内部的含银环氧化催化剂接触以形成包含环氧乙烷的反应气体。

    TUBE TO TUBE SHEET WELDING FOR FABRICATION OF VERTICAL BOILING REACTOR WITH REDUCED TUBE PITCH
    79.
    发明申请
    TUBE TO TUBE SHEET WELDING FOR FABRICATION OF VERTICAL BOILING REACTOR WITH REDUCED TUBE PITCH 有权

    公开(公告)号：US20220226937A1

    公开(公告)日：2022-07-21

    申请号：US17575023

    申请日：2022-01-13

    Applicant: Scientific Design Company, Inc.

    Inventor： Mohammad Ganjvar

    IPC: B23K33/00 ,  B01J19/00 ,  B01J19/24

    Abstract: Reduced tube pitch within a shell-and-tube heat exchange reactor such as, for example, an EO reactor, is provided by utilizing a welding material that has a high tensile (i.e., a tensile strength of greater than 600 MPa). Reduced tube pitch allows for more elongated tubes (the tubes are filled with a catalyst) to be present in a reactor, and thus a smaller reactor can be manufactured. Notably, the use of a high tensile strength welding material allows the implementation of a small welding groove located between a beveled sidewall of a beveled upper portion of an opening provided in a tube sheet overlay material (that is located atop a tube sheet) and an outermost sidewall of the elongated tube passing through the opening in the tube sheet overlay material.

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