公开(公告)号：US5446000A

公开(公告)日：1995-08-29

申请号：US209407

申请日：1994-03-14

Applicant: Arie Bortinger

Inventor： Arie Bortinger

IPC: B01J27/199 ,  B01J37/10 ,  C07C51/215 ,  B01J20/34

CPC classification number: C07C51/215 ,  B01J23/002 ,  B01J27/199 ,  B01J37/10 ,  B01J2523/00 ,  Y10S502/515

Abstract: A method of removing chloride from phosphorus/vanadium/oxygen mixed oxide oxidation catalysts comprising treating a chloride containing catalyst comprising phosphorus, vanadium and oxygen with a stream of gas comprising oxygen, steam and an inert gas at flow rate and temperature and for a period of time to substantially reduce the amount of chloride in the catalyst.

Abstract translation: 一种从磷/钒/氧混合氧化物氧化催化剂中除去氯化物的方法，包括以包含氧，蒸汽和惰性气体的气流在流速和温度下处理包含磷，钒和氧的含氯化物的催化剂和一段时间 时间来显着减少催化剂中的氯化物的量。

公开(公告)号：US5262548A

公开(公告)日：1993-11-16

申请号：US923508

申请日：1992-08-03

Applicant: Bruno J. Barone

Inventor： Bruno J. Barone

IPC: B01J27/199 ,  C07C51/215 ,  C07D307/60

CPC classification number: C07C51/215 ,  B01J23/002 ,  B01J27/199 ,  B01J2523/00

Abstract: An improvement in the oxidation catalyst used for the partial oxidation of n-butane and containing vanadium and phosphorus, zinc and lithium mixed oxides which comprises adding a molybdenum compound modifier in an amount of from about 0.005 to 0.025/1 Mo/V to the catalyst during the digestion of the reduced vanadium compound by concentrated phosphoric acid. The addition of Mo produces a catalyst which is very stable more active system and longer lived than the unmodified catalyst.

Abstract translation: 用于正丁烷部分氧化并含有钒和磷，锌和锂混合氧化物的氧化催化剂的改进包括向催化剂中加入量为约0.005至0.025 / 1Mo / V的钼化合物改性剂 在通过浓磷酸消化还原的钒化合物的过程中。 Mo的添加产生的催化剂比非改性催化剂非常稳定，活性更强，寿命更长。

公开(公告)号：US12247016B2

公开(公告)日：2025-03-11

申请号：US17692822

申请日：2022-03-11

Applicant: Scientific Design Company, Inc.

Inventor： Mansoor Husain

IPC: C07D301/32

Abstract: A process for the preparation of ethylene oxide in which a conventional ethylene oxide process is modified by supplement with a second chiller and a tempered water system.

公开(公告)号：US20220281757A1

公开(公告)日：2022-09-08

申请号：US17686556

申请日：2022-03-04

Applicant: Scientific Design Company, Inc.

Inventor： Saurabh KATIYAR ,  Saurabh H. PARIKH ,  Jason P. DURAND

IPC: C02F1/42 ,  C07D303/04

Abstract: A method for the oxidation of ethylene to form ethylene oxide which comprises treating an aqueous stream in a cycle water treatment unit containing an anion exchange resin to reduce the content of the impurities.

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.

公开(公告)号：US11384059B2

公开(公告)日：2022-07-12

申请号：US16225147

申请日：2018-12-19

Applicant: SCIENTIFIC DESIGN COMPANY, INC. ,  Noritake Co., Limited

Inventor： Serguei Pak ,  Yasuyuki Kato

IPC: C07D301/10 ,  B01J23/66 ,  B01J21/08 ,  B01J23/50 ,  B01J23/58 ,  B01J23/68 ,  B01J21/12

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.

公开(公告)号：US11331652B2

公开(公告)日：2022-05-17

申请号：US15834365

申请日：2017-12-07

Applicant: Scientific Design Company, Inc.

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

IPC: B01J23/02 ,  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 ,  C04B111/00

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：US20210331139A1

公开(公告)日：2021-10-28

申请号：US17240372

申请日：2021-04-26

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek ,  Michael Di Mare ,  Jean R. Adam ,  Nicholas D'Angelo

IPC: B01J21/04 ,  B01J23/68 ,  B01J37/00 ,  B01J37/08 ,  B01J37/02 ,  B01J35/10 ,  C07D301/00

Abstract: A porous ceramic body is provided for a variety of applications. The porous ceramic body includes mesocrystals of alumina such as, for example, alpha alumina. Porous alpha alumina bodies containing the mesocrystal microstructure can provide enhanced activity and catalyst lifetime when the same is used as a carrier for a silver-based ethylene oxide catalyst.

公开(公告)号：US10751699B2

公开(公告)日：2020-08-25

申请号：US16725418

申请日：2019-12-23

Applicant: Scientific Design Company, Inc.

Inventor： Wojciech L. Suchanek

IPC: B01J21/04 ,  B01J23/04 ,  B01J23/36 ,  B01J23/50 ,  B01J35/04 ,  B01J35/10 ,  B01J37/00 ,  B01J37/08 ,  B01J19/00 ,  C04B38/00 ,  C04B38/08 ,  C04B41/00 ,  C04B41/45 ,  C04B41/51 ,  C04B41/88 ,  C07D301/22 ,  C07D301/10 ,  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：US10710947B2

公开(公告)日：2020-07-14

申请号：US16398975

申请日：2019-04-30

Applicant: Scientific Design Company, Inc.

Inventor： Eunice Yamada ,  Shaun McGovern ,  Barry Jay Billig

IPC: C07C29/152 ,  C07C29/10

Abstract: A method for improving the manufacture of an existing ethylene glycol manufacturing that includes inserting a catalytic hydration reaction section with multiple adiabatic reactors.