公开(公告)号：US11439986B2

公开(公告)日：2022-09-13

申请号：US15839987

申请日：2017-12-13

Applicant: Scientific Design Company, Inc.

Inventor： Evgeny Beletskiy

IPC: B01J23/50 ,  C07D301/02 ,  B01J37/02 ,  B01J35/00 ,  B01J37/08

Abstract: A silver impregnation solution containing: (i) silver ions, (ii) a polar organic additive containing two to four carbon atoms and two to four functional groups selected from hydroxy, carboxylic acid, and amine groups, provided that a carboxylic acid group can only be present along with a hydroxy or amine group, and provided that an amine group can only be present along with a hydroxy or carboxylic acid group; and (iii) water; wherein components (i) and (ii) are water soluble and dissolved in the impregnation solution. Also described herein is a method for producing a catalyst effective in the oxidative conversion of ethylene to ethylene oxide, the method comprising subjecting a refractory carrier impregnated with the above-described silver impregnation solution to a calcination process. Also described herein is a method for converting ethylene to ethylene oxide by use of the foregoing silver catalyst, as produced by the above-described silver impregnation solution.

公开(公告)号：US20220274093A1

公开(公告)日：2022-09-01

申请号：US17744870

申请日：2022-05-16

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek ,  Paul E. Ellis, JR. ,  Michael Di Mare ,  Jean Adam

IPC: B01J23/50 ,  B01J21/04 ,  B01J35/00 ,  B01J35/10 ,  B01J37/00 ,  B01D53/22 ,  B01J37/08 ,  B01J37/02 ,  C07D301/10 ,  B01D71/02 ,  B01J37/04 ,  B01J35/04 ,  C04B35/624 ,  C04B38/00

Abstract: A precursor mixture for producing a porous body, wherein the precursor mixture comprises: (i) at least one milled alpha alumina powder having a particle size of 0.1 to 6 microns, (ii) non-silicate powder that functions as a binder of the alpha alumina powders, and (iii) at least one burnout material having a particle size of 1-10 microns and a decomposition temperature of less than 550° C., with the proviso that a burnout material having a decomposition temperature of 550° C. or greater is excluded from the precursor mixture.

公开(公告)号：US20220203322A1

公开(公告)日：2022-06-30

申请号：US17564658

申请日：2021-12-29

Applicant: Scientific Design Company, Inc.

Inventor： Mohammad Ganjvar ,  Jiacheng Ni

IPC: B01J19/00 ,  F28D7/10

Abstract: A baffle (i.e., tube support) for use in a shell-and-tube heat exchange reactor, such as, for example, an ethylene oxide (EO) reactor, is provided that accommodates reduced tube pitch, and thus more catalyst packed tubes can be inside the reactor. The baffle, which can be referred to herein as a corrugated grid support, includes a plurality of corrugated stainless steel strips which sit into each other and form a grid pattern having tube openings. Each tube opening is configured to permit a catalyst packed tube to be inserted therein, while allowing a sufficient open area along the shell side of the tube to permit coolant to flow through the reactor.

公开(公告)号：US11185847B2

公开(公告)日：2021-11-30

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 ,  C07D301/22 ,  B01J23/50 ,  C07D301/10 ,  C04B41/88 ,  C04B38/08 ,  C04B41/00 ,  C04B41/51 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  C04B38/00 ,  B01J19/00 ,  B01J23/04 ,  B01J23/36 ,  C04B41/45 ,  C04B111/00

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.

公开(公告)号：US10807929B2

公开(公告)日：2020-10-20

申请号：US16399153

申请日：2019-04-30

Applicant: Scientific Design Company, Inc.

Inventor： Chun Chau Chan ,  Eunice Yamada ,  Barry Jay Billig ,  Shaun McGovern

IPC: C07C29/152 ,  C07C29/153

Abstract: An improved catalytic hydration process that includes a catalytic hydration reaction section containing adiabatic reactors with ion exchange resin catalyst and which maintains low resin swelling and excellent selectivity while also reducing process complexity and increasing versatility.

公开(公告)号：US10807928B2

公开(公告)日：2020-10-20

申请号：US16399108

申请日：2019-04-30

Applicant: Scientific Design Company, Inc.

Inventor： Shaun McGovern ,  Eunice Yamada ,  Barry Jay Billig ,  Chun Chau Chan

IPC: C07C29/152 ,  C07C29/153

Abstract: An improved catalytic hydration process that includes a catalytic hydration reaction section containing adiabatic reactors with ion exchange resin catalyst and which maintains low resin swelling and excellent selectivity while also reducing process complexity and increasing versatility.

公开(公告)号：US10512894B2

公开(公告)日：2019-12-24

申请号：US15722696

申请日：2017-10-02

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek

IPC: B01J21/04 ,  C04B38/00 ,  C04B38/08 ,  C04B41/00 ,  C04B41/45 ,  C04B41/51 ,  C04B41/88 ,  B01J35/10 ,  C07D301/22 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  B01J23/50 ,  C07D301/10 ,  B01J19/00 ,  B01J23/04 ,  B01J23/36 ,  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：US20190322592A1

公开(公告)日：2019-10-24

申请号：US15960164

申请日：2018-04-23

Applicant: Scientific Design Company, Inc.

Inventor： Jean Adam ,  Michael Di Mare ,  Wojciech L. Suchanek

IPC: C04B38/06 ,  C04B41/00

Abstract: Oxalic acid is employed in a precursor mixture containing at least one milled alpha alumina powder having a particle size of 0.1 to 6 microns, boehmite powder that functions as a binder of the alpha alumina powders, and at least one burnout material having a particle size of 1-10 microns to provide a porous body having enhanced pore architecture in which extrusion cracks can be reduced. The presence of oxalic acid in such as precursor mixture can reduce and even eliminate NOx emission during a high temperature heat treatment process.

公开(公告)号：US09427729B2

公开(公告)日：2016-08-30

申请号：US14279826

申请日：2014-05-16

Applicant: Scientific Design Company, Inc.

Inventor： Nabil Rizkalla ,  Andrzej Rokicki

IPC: B01J23/50 ,  C07D301/10

CPC classification number: B01J23/50 ,  C07D301/10 ,  Y02P20/52

Abstract: A silver-based ethylene oxide catalyst that can be used in the vapor phase conversion of ethylene to ethylene oxide in the presence of oxygen is provided that includes a carrier; a catalytic effective amount of silver; and a promoting amount of at least one promoter, wherein the catalyst has a surface sodium content of 100 ppm or less.

Abstract translation: 提供了可用于在氧存在下乙烯至环氧乙烷气相转化的银基环氧乙烷催化剂，其包括载体; 催化有效量的银; 和促进量的至少一种促进剂，其中催化剂的表面钠含量为100ppm以下。

公开(公告)号：US09120720B2

公开(公告)日：2015-09-01

申请号：US14578795

申请日：2014-12-22

Applicant: Scientific Design Company, Inc.

Inventor： Katelyn Marvin ,  Barry Jay Billig

IPC: C07C213/10 ,  C07C213/04

CPC classification number: C07C213/10 ,  C07C213/04 ,  C07C215/12 ,  C07C215/08

Abstract: A process for the preparation of ethanolamines comprising reacting a water-ammonia solution comprising ammonia and water with ethylene oxide.

Abstract translation: 一种制备乙醇胺的方法，包括使包含氨和水的水 - 氨溶液与环氧乙烷反应。