公开(公告)号：US20160303532A1

公开(公告)日：2016-10-20

申请号：US15196288

申请日：2016-06-29

Applicant: Arkema Inc.

Inventor： Michael S. DeCourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J15/00 ,  B01J19/24 ,  C07C51/215 ,  B01J19/00

CPC classification number: B01J15/005 ,  B01J8/0453 ,  B01J8/048 ,  B01J8/065 ,  B01J8/067 ,  B01J19/0046 ,  B01J19/242 ,  B01J2208/00221 ,  B01J2208/00849 ,  B01J2208/0092 ,  B01J2208/025 ,  B01J2219/00479 ,  B01J2219/00495 ,  B01J2219/0059 ,  B01J2219/00594 ,  B01J2219/0072 ,  B01J2219/30226 ,  B01J2219/30265 ,  B01J2219/30475 ,  C07C51/215 ,  C07C51/235 ,  C07C51/252 ,  C07C57/04

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

Abstract translation: 本公开涉及单壳开放级间反应堆（“SSOI”）。 SSOI包括第一反应段，级间热交换器，开放级间区域和第二反应段。 SSOI可以配置为上流或下流操作。 此外，SSOI的开放级间区域可以包括补充氧化剂进料。 当开放级间区域包含补充氧化剂进料时，SSOI还可以包含补充氧化剂混合组件。 还公开了通过丙烯氧化制备丙烯酸的方法。

公开(公告)号：US10294185B2

公开(公告)日：2019-05-21

申请号：US15658677

申请日：2017-07-25

Applicant: Arkema Inc.

Inventor： Timothy D. Ligon ,  Olan S. Fruchey ,  Christopher T. Reeves ,  Fungau Ho ,  Roger L. Roundy ,  William G. Etzkorn ,  Mahmood N. A. Jawaid ,  Patrick M. Wiegand

IPC: B01D3/14 ,  B01D3/36 ,  B01D3/42 ,  C07C51/44 ,  C07C57/04

Abstract: An improved process for the manufacture of technical grade (meth)acrylic acid, e.g., acrylic acid, the process comprising producing a hydrated reaction product from the gas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followed by first dehydrating and then concentrating the reaction product, the improvement comprising controlling at least one of the water, acetic acid and (meth)acrylic acid content of the reaction product during the purification of the reaction product using on-line, near IR spectroscopy.

公开(公告)号：US10532338B2

公开(公告)日：2020-01-14

申请号：US16297855

申请日：2019-03-11

Applicant: Arkema Inc.

Inventor： Michael S. Decourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J8/06 ,  C07C51/25 ,  C07C51/235 ,  B01J8/04 ,  C07C51/215 ,  B01J15/00 ,  B01J19/00 ,  B01J19/24 ,  F28D21/00

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

公开(公告)号：US20170320804A1

公开(公告)日：2017-11-09

申请号：US15658677

申请日：2017-07-25

Applicant: Arkema Inc.

Inventor： Timothy D. Ligon ,  Olan S. Fruchey ,  Christopher T. Reeves ,  Fungau Ho ,  Roger L. Roundy ,  William G. Etzkorn ,  Mahmood N.A. Jawaid ,  Patrick M. Wiegand

IPC: C07C51/44 ,  B01D3/42 ,  B01D3/36 ,  C07C57/04 ,  B01D3/14

CPC classification number: C07C51/44 ,  B01D3/143 ,  B01D3/36 ,  B01D3/42 ,  C07C57/04

Abstract: An improved process for the manufacture of technical grade (meth)acrylic acid, e.g., acrylic acid, the process comprising producing a hydrated reaction product from the gas-phase oxidation of at least one (meth)acrylic acid precursor, e.g., propylene, followed by first dehydrating and then concentrating the reaction product, the improvement comprising controlling at least one of the water, acetic acid and (meth)acrylic acid content of the reaction product during the purification of the reaction product using on-line, near IR spectroscopy.

公开(公告)号：US20130178652A1

公开(公告)日：2013-07-11

申请号：US13781834

申请日：2013-03-01

Applicant: Arkema Inc.

Inventor： Olan S. Fruchey ,  Christopher T. Reeves ,  William C. Brooks ,  Edmund J. Yang ,  Roger L. Roundy

IPC: C07C51/38

CPC classification number: C09K15/30 ,  C07C51/38 ,  C07C51/50 ,  C07C67/62 ,  C08F2/40 ,  C07C57/04 ,  C07C69/54

Abstract: The method of inhibiting the polymerization of a mono-ethylenically unsaturated carboxylic acid, anhydride, ester or neutralized or partially neutralized salt, e.g., an acrylic acid or ester, in an aqueous solution and in the presence of oxygen, the method comprising the step of mixing with the aqueous solution an inhibitor comprising (i) at least 50 ppm of an N-oxyl compound, e.g., 4-hydroxy-TEMPO, and (ii) a manganese ion, the N-oxyl compound and manganese ion present in a N-oxyl compound to manganese ion weight ratio of 50:1 to less than 100:1. based on the mono-ethylenically unsaturated carboxylic acid, anhydride, ester or salt.

Abstract translation: 在水溶液中和在氧气存在下抑制单烯属不饱和羧酸，酸酐，酯或中和或部分中和的盐例如丙烯酸或酯的聚合的方法包括以下步骤： 与水溶液混合，包含（i）至少50ppm的N-氧基化合物，例如4-羟基-TEMPO，和（ii）锰离子，N-氧基化合物和锰离子存在于N 氧化合物与锰离子的重量比为50:1至小于100:1。 基于单烯键式不饱和羧酸，酸酐，酯或盐。

公开(公告)号：US10286374B2

公开(公告)日：2019-05-14

申请号：US15825311

申请日：2017-11-29

Applicant: Arkema Inc.

Inventor： Michael S. DeCourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J8/06 ,  C07C51/235 ,  B01J8/04 ,  C07C51/215 ,  C07C51/25 ,  B01J15/00 ,  B01J19/00 ,  B01J19/24

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

公开(公告)号：US09861948B2

公开(公告)日：2018-01-09

申请号：US15196288

申请日：2016-06-29

Applicant: Arkema Inc.

Inventor： Michael S. Decourcy ,  John L. Steinbach ,  Nicolas Dupont ,  Roger L. Roundy

IPC: B01J8/06 ,  B01J8/04 ,  C07C51/235 ,  C07C51/215 ,  C07C51/25 ,  B01J15/00 ,  B01J19/00 ,  B01J19/24

CPC classification number: B01J15/005 ,  B01J8/0453 ,  B01J8/048 ,  B01J8/065 ,  B01J8/067 ,  B01J19/0046 ,  B01J19/242 ,  B01J2208/00221 ,  B01J2208/00849 ,  B01J2208/0092 ,  B01J2208/025 ,  B01J2219/00479 ,  B01J2219/00495 ,  B01J2219/0059 ,  B01J2219/00594 ,  B01J2219/0072 ,  B01J2219/30226 ,  B01J2219/30265 ,  B01J2219/30475 ,  C07C51/215 ,  C07C51/235 ,  C07C51/252 ,  C07C57/04

Abstract: The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.