公开(公告)号：US09975865B2

公开(公告)日：2018-05-22

申请号：US15651191

申请日：2017-07-17

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia

IPC: C07D301/10 ,  C07D303/06 ,  B01J23/04 ,  B01J23/50 ,  C01D17/00

CPC classification number: C07D301/10 ,  B01J23/04 ,  B01J23/50 ,  C01D17/003 ,  C07D303/06

Abstract: A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.

公开(公告)号：US20180021755A1

公开(公告)日：2018-01-25

申请号：US15722696

申请日：2017-10-02

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek

IPC: B01J21/04 ,  B01J23/50 ,  C07D301/10 ,  C04B41/88 ,  C04B41/51 ,  C04B41/00 ,  C04B38/08 ,  B01J37/08 ,  B01J37/00 ,  B01J35/10 ,  B01J35/04 ,  C07D301/22 ,  C04B41/45 ,  C04B111/00

Abstract: A porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m2/g to 3.0 m2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.

公开(公告)号：US20180016248A1

公开(公告)日：2018-01-18

申请号：US15651191

申请日：2017-07-17

Applicant: Scientific Design Company, Inc.

Inventor： Ashok S. Padia

IPC: C07D301/10 ,  C01D17/00 ,  B01J23/50 ,  C07D303/06 ,  B01J23/04

CPC classification number: C07D301/10 ,  B01J23/04 ,  B01J23/50 ,  C01D17/003 ,  C07D303/06

Abstract: A method for producing ethylene oxide comprising: a) providing one or more feed components, wherein the one or more feed components contains at least ethylene obtained by dehydrating ethanol; b) contacting the one or more feed components with an ethylene oxide catalyst bed disposed in a reactor tube, the ethylene oxide catalyst bed comprising: (1) an upstream ethylene oxide catalyst having a first cesium concentration and (2) a downstream ethylene oxide catalyst having a second cesium concentration, wherein the first cesium concentration is higher than the second cesium concentration.

公开(公告)号：US09776169B2

公开(公告)日：2017-10-03

申请号：US15171278

申请日：2016-06-02

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek

IPC: B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/50 ,  B01J35/10 ,  C07D301/22 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  C04B38/00 ,  C07D301/10 ,  C04B41/88 ,  C04B38/08 ,  C04B41/00 ,  C04B41/51 ,  C04B111/00

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 porous body is provided with enhanced fluid transport properties that is capable of performing or facilitating separations, or performing reactions and/or providing areas for such separations or reactions to take place. The porous body includes at least 80 percent alpha alumina and has a pore volume from 0.3 mL/g to 1.2 mL/g and a surface area from 0.3 m2/g to 3.0 m2/g. The porous body further includes a pore architecture that provides at least one of a tortuosity of 7.0 or less, a constriction of 4.0 or less and a permeability of 30 mdarcys or greater. The porous body can be used in a wide variety of applications such as, for example, as a filter, as a membrane or as a catalyst carrier.

公开(公告)号：US20160251326A1

公开(公告)日：2016-09-01

申请号：US15054447

申请日：2016-02-26

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek ,  Nabil Rizkalla ,  Andrzej Rokicki

IPC: C07D301/10 ,  B01J35/02 ,  B01J35/10 ,  B01J23/68

CPC classification number: C07D301/10 ,  B01J21/04 ,  B01J23/688 ,  B01J35/0013 ,  B01J35/006 ,  B01J35/0066 ,  B01J35/023 ,  B01J35/1009 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1061 ,  B01J35/1066 ,  B01J35/1071 ,  B01J35/1076

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.

Abstract translation: 提供了一种银基乙烯环氧化催化剂，其表现出改善的性能，即选择性和活性下降。 表现出改进性能的催化剂包括设置在α-氧化铝载体上的大于约20重量％的银，以及设置在α-氧化铝载体上的促进量的一种或多种助催化剂。 银作为银颗粒存在于α-氧化铝载体上，银颗粒的直径大于约150nm，分布密度约为每平方微米或更小的约20个颗粒。

公开(公告)号：US09321035B2

公开(公告)日：2016-04-26

申请号：US14175401

申请日：2014-02-07

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech Suchanek ,  Andrzej Rokicki

IPC: B01J23/66 ,  B01J21/04 ,  B01J23/50

CPC classification number: B01J23/66 ,  B01J21/04 ,  B01J23/002 ,  B01J23/50 ,  B01J23/688 ,  B01J35/0006 ,  B01J35/006 ,  B01J35/023 ,  B01J35/026 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1014 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1076 ,  B01J35/109 ,  B01J37/0018 ,  B01J37/0203 ,  B01J37/0207 ,  B01J37/06 ,  B01J37/08 ,  C04B35/1115 ,  C04B35/117 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3217 ,  C04B2235/3222 ,  C04B2235/3284 ,  C04B2235/3409 ,  C04B2235/3817 ,  C04B2235/3852 ,  C04B2235/40 ,  C04B2235/442 ,  C04B2235/446 ,  C04B2235/448 ,  C04B2235/52 ,  C04B2235/6021 ,  C07D301/08 ,  C07D301/10 ,  Y02P20/52

Abstract: Silver based ethylene oxide catalysts having enhanced stability are disclosed. The enhanced stability silver based ethylene oxide catalysts include an alumina carrier which has been modified to include cavities on the surface of the carrier. The presence of the cavities on the surface of the modified carrier stops or at least impedes the motion of silver particles on the surface of the carrier during an epoxidation process. In particular, the cavities on the surface of the alumina carrier effectively trap and/or anchor silver particles and prevent them from further motion.

Abstract translation: 公开了具有增强的稳定性的银基环氧乙烷催化剂。 增强稳定性的银基环氧乙烷催化剂包括氧化铝载体，其已被改性以在载体的表面上包括空腔。 在环氧化过程中，改性载体表面上的空腔的存在停止或至少阻止银颗粒在载体表面上的运动。 特别地，氧化铝载体表面上的空穴有效地俘获和/或锚定银颗粒并防止它们进一步运动。

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。

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。

公开(公告)号：US08546297B2

公开(公告)日：2013-10-01

申请号：US13109657

申请日：2011-05-17

Applicant: Andrzej Rokicki ,  Arie Bortinger ,  Christelle Verrier

Inventor： Andrzej Rokicki ,  Arie Bortinger ,  Christelle Verrier

IPC: B01J23/48 ,  B01J23/50 ,  B01J23/58 ,  C07D301/10

CPC classification number: C07D301/10 ,  B01J23/68 ,  B01J23/688 ,  B01J37/0201 ,  B01J37/08 ,  B01J37/12 ,  B01J37/14 ,  Y02P20/52

Abstract: A process for the preparation of a catalyst useful for the vapor phase production of ethylene oxide from ethylene and oxygen comprising the steps of providing a catalyst precursor comprising an inert support having a catalytically effective amount of a silver containing compound, a promoting amount of an alkali metal containing compound, and a promoting amount of a transition metal containing compound disposed thereon; and heating the catalyst precursor in a gas atmosphere for a first period of time and a second period of time, wherein for the first period of time the gas atmosphere is an inert gas atmosphere and the temperature range is from about 25° C. to about 600° C., and then in a second period of time the gas atmosphere is an oxygen-containing atmosphere and the second period temperature range is from about 350° C. to about 600° C.

Abstract translation: 一种用于制备用于从乙烯和氧气生产环氧乙烷的催化剂的方法，包括提供催化剂前体的步骤，所述催化剂前体包含具有催化有效量的含银化合物的惰性载体，促进量的碱 含金属的化合物，以及促进量的含过渡金属的化合物配置在其上; 以及在气体气氛中加热催化剂前体第一时间段和第二时间段，其中在第一时间段内，气体气氛是惰性气体气氛，温度范围为约25℃至约 600℃，然后在第二时间段内，气体气氛为含氧气氛，第二周期温度范围为约350℃至约600℃。

公开(公告)号：US08349765B2

公开(公告)日：2013-01-08

申请号：US12360457

申请日：2009-01-27

Applicant: Serguei Pak ,  Andrzej Rokicki ,  Shuji Kawabata

Inventor： Serguei Pak ,  Andrzej Rokicki ,  Shuji Kawabata

IPC: B01J21/04 ,  C07D301/03

CPC classification number: B01J23/688 ,  B01J21/16 ,  B01J23/66 ,  B01J27/055 ,  B01J35/1038 ,  B01J35/1042 ,  B01J35/1066 ,  B01J35/1071 ,  B01J35/1076 ,  B01J35/108 ,  B01J35/109 ,  C07D301/10 ,  Y02P20/52

Abstract: The present invention relates to an improved carrier for an ethylene epoxidation catalyst, the carrier comprising alumina in combination with a stability-enhancing amount of mullite. The invention is also directed to an improved catalyst containing the improved carrier, as well as an improved process for the epoxidation of ethylene using the catalyst of the invention.

Abstract translation: 本发明涉及用于乙烯环氧化催化剂的改进的载体，该载体包含与稳定性增强量的莫来石结合的氧化铝。 本发明还涉及含有改进的载体的改进的催化剂，以及使用本发明的催化剂改进乙烯环氧化的改进方法。