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公开(公告)号：US20190070588A1
公开(公告)日：2019-03-07
申请号：US16178148
申请日：2018-11-01
Applicant: Scientific Design Company, Inc.
Inventor： Wojciech L. Suchanek , Matthew Julian
IPC: B01J21/04 , B01J35/10 , B01J37/08 , C07D301/22 , C04B41/45 , B01J23/36 , B01J19/00 , B01J23/04 , C04B38/00 , B01J23/50 , C07D301/10 , C04B41/88 , C04B38/08 , B01J35/04 , B01J37/00
Abstract: A precursor mixture for producing a porous body, wherein the precursor mixture comprises: (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) boehmite powder that functions as a binder of the alpha alumina powders, and (iii) burnout materials having a particle sizes of 1-10 microns. In some embodiments, an unmilled alpha alumina powder having a particle size of 10 to 100 microns is also included in said precursor mixture. Also described herein is a method for producing a porous body in which the above-described precursor mixture is formed to a given shape, and subjected to a heat treatment step in which the formed shape is sintered to produce the porous body.
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公开(公告)号：US10040773B2
公开(公告)日：2018-08-07
申请号：US15054447
申请日：2016-02-26
Applicant: Scientific Design Company, Inc.
Inventor： Wojciech L. Suchanek , Nabil Rizkalla , Andrzej Rokicki
Abstract: A silver-based ethylene epoxidation catalyst is provided that exhibits improved performance, i.e., selectivity and activity decline. The catalyst that exhibits the improved performance includes greater than about 20% by weight of silver disposed on an alpha-alumina carrier, and a promoting amount of one or more promoters disposed on the alpha-alumina carrier. The silver is present on the alpha-alumina carrier as silver particles having a diameter of greater than about 150 nm and a distribution density of about 20 particles per 1 square micron or less.
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43.发明申请公开(公告)号：US20180186759A1
公开(公告)日：2018-07-05
申请号：US15689758
申请日：2017-08-29
Applicant: SCIENTIFIC DESIGN COMPANY, INC. , Noritake Co., Limited
Inventor： Serguei PAK , Yasuyuki KATO
IPC: C07D301/10 , B01J23/66 , B01J21/12 , B01J21/08
CPC classification number: C07D301/10 , B01J21/08 , B01J21/12 , B01J23/50 , B01J23/58 , B01J23/66 , B01J23/688 , Y02P20/52
Abstract: A carrier for an ethylene epoxidation catalyst, the carrier comprising a porous alumina body formed of sintered particles of alumina in a substantial absence of inorganic binder species other than alumina, wherein the substantial absence of inorganic binder species corresponds to an amount of less than 0.6 wt % inorganic binder species other than alumina and comprises at least a substantial absence of silicon-containing species.
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公开(公告)号：US20180141025A1
公开(公告)日：2018-05-24
申请号：US15579419
申请日：2016-06-02
Applicant: SCIENTIFIC DESIGN COMPANY, INC.
Inventor： Christelle VERRIER , Wojciech L. SUCHANEK
CPC classification number: B01J21/04 , B01J19/0013 , B01J23/04 , B01J23/36 , B01J23/50 , B01J35/04 , B01J35/1009 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/108 , B01J37/0018 , B01J37/086 , B01J2219/00051 , C04B38/00 , C04B38/08 , C04B41/009 , C04B41/4535 , C04B41/5116 , C04B41/88 , C04B2111/0081 , C07D301/10 , C07D301/22 , C04B35/10 , C04B38/0096 , C04B41/455
Abstract: A method is provided for improving the performance of a silver-based epoxidation catalyst comprising a carrier. The carrier includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g, a surface area from 0.3 m2/g to 3.0 m2/g, and a pore architecture that provides at least one of a tortuosity of 7 or less, a constriction of 4 or less and a permeability of 30 mdarcys or greater. A catalytic amount of silver and a promoting amount of one or more promoters is disposed on and/or in said carrier. The method further includes the steps of initiating an epoxidation reaction by reacting a feed gas composition containing ethylene and oxygen present in a ratio of from about 3.5:1 to about 12:1, in the presence of the silver-based epoxidation catalyst at a temperature of about 200° C. to about 230° C., and subsequently increasing the temperature either stepwise or continuously.
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公开(公告)号：US20180044309A1
公开(公告)日：2018-02-15
申请号：US15672945
申请日：2017-08-09
Applicant: Scientific Design Company, Inc.
Inventor： Shaun McGovern , Mansoor Husain , John Sullivan
IPC: C07D301/10 , C07D301/32 , B01J8/06 , C07C7/12
CPC classification number: C07D301/10 , B01D2259/402 , B01J8/06 , C07C7/12 , C07D301/32
Abstract: A method for the oxidation of ethylene to form ethylene oxide which comprises: providing an aqueous stream containing ethylene glycol and impurities; introducing the aqueous stream in a first ion exchange treatment bed to reduce the content of these impurities; determining whether an outlet of the first ion exchange treatment bed has a conductivity greater than about 5 μS/cm; upon determining that the outlet of the first ion exchange treatment bed has a conductivity greater than about 5 μS/cm, introducing the outlet of the first ion exchange treatment bed into a second ion exchange treatment bed; and upon determining that the outlet of the first ion exchange treatment bed has a conductivity greater than about 60 μS/cm, redirecting the introduction of the aqueous stream to the second ion exchange treatment bed and regenerating the first ion exchange bed.
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Patent Agency Ranking
公开(公告)号：US20180044272A1
公开(公告)日：2018-02-15
申请号：US15672927
申请日：2017-08-09
Applicant: Scientific Design Company, Inc.
Inventor： Saurabh KATIYAR
CPC classification number: C07C41/42 , B01D3/06 , B01D3/148 , B01D5/009 , B01D19/0015 , C07C43/13 , C07C43/11
Abstract: A process for the preparation of glycol ethers by providing a diethylene glycol ether column bottoms mixture comprising triethylene glycol ether, tetraethylene glycol ether, and glycol ether catalyst; separating, in a stripping column, the column bottom mixture into a triethylene glycol ether vapor overhead and a liquid bottoms; and separating, in an evaporator, the liquid bottoms into a residue containing about 80% to about 90% tetraethylene glycol ether and an evaporator overhead comprising at least about 60% tetraethylene glycol ether.
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公开(公告)号：US09892238B2
公开(公告)日：2018-02-13
申请号：US14296894
申请日：2014-06-05
Applicant: Scientific Design Company, Inc.
Inventor： Sandip K. Lahiri , Mansoor Husain
CPC classification number: G06F19/707 , G05B23/0216 , G05B23/024 , G05B23/0254 , G05B2219/32201 , G06F19/702 , G06N3/02 , G06N3/08 , Y02P90/22
Abstract: A system for monitoring a process determined by a set of process data in a multidimensional process data domain pertaining to process input-output data, the system comprising: means for acquiring a plurality of historic process data sets; means for obtaining a transformation from the multidimensional process data domain to a model data domain of lower dimension by performing multivariate data analysis; and means for transforming a current process data set to a model data set to monitor the process.
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公开(公告)号：US09758498B2
公开(公告)日：2017-09-12
申请号：US14811309
申请日：2015-07-28
Applicant: Scientific Design Company, Inc.
Inventor： Nabil Rizkalla , Andrzej Rokicki
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.
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公开(公告)号：US20160354759A1
公开(公告)日：2016-12-08
申请号：US15171273
申请日：2016-06-02
Applicant: Scientific Design Company, Inc.
Inventor： Wojciech L. Suchanek , Matthew Julian
CPC classification number: B01J21/04 , B01J19/0013 , B01J23/04 , B01J23/36 , B01J23/50 , B01J35/04 , B01J35/1009 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/108 , B01J37/0018 , B01J37/086 , B01J2219/00051 , C04B38/00 , C04B38/08 , C04B41/009 , C04B41/4535 , C04B41/5116 , C04B41/88 , C04B2111/0081 , C07D301/10 , C07D301/22 , C04B35/10 , C04B38/0096 , C04B41/455
Abstract: A precursor mixture for producing a porous body, wherein the precursor mixture comprises: (i) milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) boehmite powder that functions as a binder of the alpha alumina powders, and (iii) burnout materials having a particle sizes of 1-10 microns. In some embodiments, an unmilled alpha alumina powder having a particle size of 10 to 100 microns is also included in said precursor mixture. Also described herein is a method for producing a porous body in which the above-described precursor mixture is formed to a given shape, and subjected to a heat treatment step in which the formed shape is sintered to produce the porous body.
Abstract translation: 一种用于生产多孔体的前体混合物，其中前体混合物包括：（i）粒径为0.1至6微米的碾磨的α氧化铝粉末，（ii）用作α氧化铝粉末的粘合剂的勃姆石粉末和（ iii）具有1-10微米粒度的烧尽材料。 在一些实施方案中，所述前体混合物中还包括粒度为10至100微米的未经磨碎的α氧化铝粉末。 本文还描述了一种制造多孔体的方法，其中将上述前体混合物形成为给定形状，并进行热处理步骤，其中形成的形状被烧结以产生多孔体。
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公开(公告)号：US09221774B2
公开(公告)日：2015-12-29
申请号：US13655000
申请日：2012-10-18
Applicant: Scientific Design Company, Inc.
Inventor： Hassan Eisa Al-Ahmadi , Ashok S. Padia
IPC: C07D301/08 , C07D301/03 , C07D301/04
CPC classification number: C07D301/03 , C07D301/04
Abstract: A method for the epoxidation of an olefin comprising the steps of reacting a feed gas composition containing an olefin, oxygen, and a moderator having an optimal moderator concentration in the presence of an epoxidation catalyst at a first temperature and having a first selectivity; and increasing the optimal moderator concentration to a second moderator concentration and whereby the first selectivity is lowed to a second selectivity and the first temperature to a second temperature.
Abstract translation: 一种用于烯烃环氧化的方法，包括以下步骤：在第一温度下在含有环氧化催化剂存在下具有最佳缓和剂浓度的含有烯烃，氧气和缓和剂的进料气体组合物反应并具有第一选择性; 并且将最佳缓和剂浓度增加至第二减速剂浓度，由此第一选择性降低至第二选择性，第一温度降低至第二温度。
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