公开(公告)号：US12209058B2

公开(公告)日：2025-01-28

申请号：US17629906

申请日：2020-07-22

Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.

Inventor： Keisuke Tomaki ,  Shiori Shinagawa ,  Shinyou Shirai

IPC: C07C209/48 ,  B01J23/75 ,  B01J23/755

Abstract: A method for producing an aromatic aminomethyl, comprising hydrogenating an aromatic nitrile in a mixed solvent comprising a hydrocarbon solvent and a polar organic solvent having a solubility parameter (SP value) of 10 or more in the presence of a quaternary ammonium compound and a hydrogenation catalyst.

公开(公告)号：US20240131487A1

公开(公告)日：2024-04-25

申请号：US18554911

申请日：2022-04-27

Applicant: IPSOMEDIC

Inventor： Edith LECOMTE-NORRANT

IPC: B01J3/04 ,  B01J19/00 ,  B01J19/18 ,  B01J21/06 ,  B01J21/18 ,  B01J23/42 ,  B01J23/44 ,  B01J25/02 ,  B01J29/70 ,  C07C1/32 ,  C07C45/29 ,  C07C45/45 ,  C07C51/347 ,  C07C209/48 ,  C07C213/02 ,  C07D207/27 ,  C07D317/36 ,  C07D333/08

CPC classification number: B01J3/04 ,  B01J19/0013 ,  B01J19/0066 ,  B01J19/1862 ,  B01J21/06 ,  B01J21/18 ,  B01J23/42 ,  B01J23/44 ,  B01J25/02 ,  B01J29/7007 ,  C07C1/321 ,  C07C45/29 ,  C07C45/455 ,  C07C51/347 ,  C07C209/48 ,  C07C213/02 ,  C07D207/27 ,  C07D317/36 ,  C07D333/08 ,  B01J2219/00094 ,  B01J2219/00186

Abstract: The present invention relates to a device for carrying out continuous-flow chemical reactions under pressure or high pressure using a cascade of perfectly stirred Gas-Liquid-Solid reactors, and to the use of these devices for the implementation of such reactions. The device comprises a cascade of interconnected autoclave reactors. The reactors of the cascade are of different volumes and are provided with means allowing them to be controlled individually in a completely independent manner. The cascade of reactors comprises at least two reactors of different volumes, increasing or decreasing in the fluid flow direction.

公开(公告)号：US11939280B2

公开(公告)日：2024-03-26

申请号：US17295369

申请日：2018-12-25

Applicant: WANHUA CHEMICAL GROUP CO., LTD.

Inventor： Yong Yu ,  Yonghua Shang ,  Lei Zhao ,  Wenbin Li ,  Ye Sun ,  Wei He ,  Xuelei Cui ,  Jingxu Wang ,  Degang Liu ,  Yuan Li

IPC: C07D263/10 ,  B01J25/00 ,  C07C209/48 ,  C07C253/10 ,  C07C263/10

CPC classification number: C07C263/10 ,  B01J25/00 ,  C07C209/48 ,  C07C253/10 ,  C07C2601/16

Abstract: A method for preparing isophorone diisocyanate by (1) reacting isophorone with hydrogen cyanide in the presence of a catalyst to obtain isophorone nitrile; (2) reacting the isophorone nitrile obtained in step (1) with ammonia gas and hydrogen in the presence of a catalyst to obtain isophorone diamine; and (3) subjecting the isophorone diamine to a phosgenation reaction to obtain the isophorone diisocyanate, wherein the content of impurities containing a secondary amine group in the isophorone diamine that undergoes the phosgenation reaction in step (3) is ≤0.5 wt. The method reduces the content of hydrolyzed chlorine in the isophorone diisocyanate product, improves the yellowing resistance of the product, and the harm due to presence of hydrolyzed chlorine in the product is reduced.

公开(公告)号：US20230416187A1

公开(公告)日：2023-12-28

申请号：US18252821

申请日：2022-04-12

Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.

Inventor： Aoi YOKOO YAMAZOE ,  Yutaka KANBARA

IPC: C07C211/27 ,  C07C253/30 ,  C07C209/48 ,  C07C255/33

CPC classification number: C07C211/27 ,  C07C253/30 ,  C07C209/48 ,  C07C255/33

Abstract: Provided is a method for producing a methyl-adduct compound, the method including methylating, in the presence of potassium carbonate and dimethyl carbonate, a dinitrile compound represented by Formula (1) below to obtain a methyl-adduct compound represented by Formula (2) below:




where in Formula (2), R1˜R4 each independently represent hydrogen or methyl, and from one to three of R1˜R4 are each methyl.

公开(公告)号：US20230390743A1

公开(公告)日：2023-12-07

申请号：US18250828

申请日：2021-10-27

Applicant: CHINA PETROLEUM & CHEMICAL CORPORATION ,  SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC

Inventor： Yunbao TU ,  Hongyuan ZONG ,  Zhongneng LIU ,  Xiaoqing XU ,  Xue BAI ,  Xu LIU ,  Wei FU ,  Yanhong WANG

IPC: B01J23/78 ,  B01J23/75 ,  B01J35/00 ,  B01J37/03 ,  B01J37/02 ,  B01J37/00 ,  B01J37/08 ,  C07C209/48

CPC classification number: B01J23/78 ,  B01J23/75 ,  B01J35/0066 ,  B01J37/035 ,  B01J37/0244 ,  B01J37/0228 ,  B01J37/009 ,  B01J37/088 ,  C07C209/48

Abstract: A catalyst for producing dibasic amine by hydrogenation of dibasic nitrile contains the following components or reaction product thereof: a) an active component, wherein the active component comprises Ni and/or an oxide thereof; b) an auxiliary, wherein the auxiliary comprises one or more of Mg, Cu, Co, Zn, Zr, Mo and/or oxides thereof; C) support, wherein the relative content of α-NiO in the catalyst is less than 2.0 a.u. A process for producing dibasic amine by hydrogenation of dibasic nitrile is also provided.

公开(公告)号：US20230128673A1

公开(公告)日：2023-04-27

申请号：US17913177

申请日：2021-03-24

Applicant: BASF SE

Inventor： Maxime HUCHEDE ,  Sandra CHOUZIER

IPC: C07C209/48 ,  B01J25/02 ,  B01J23/04

Abstract: The present invention relates to a process for the preparation of hexamethylenediamine by hydrogenation of adiponitrile in the presence of a Raney nickel catalyst and a basic co-catalyst containing potassium hydroxide, wherein the basic co-catalyst contains a further basic compound selected from the group consisting of alkaline hydroxides, alkaline earth hydroxides and ammonium hydroxides.

公开(公告)号：US20220323941A1

公开(公告)日：2022-10-13

申请号：US17640211

申请日：2020-09-03

Applicant: EVONIK OPERATIONS GMBH

Inventor： Arne REINSDORF ,  Dorit WOLF ,  Renat KADYROV ,  Sarah CHAMSKl

IPC: B01J23/745 ,  B01J21/18 ,  B01J35/00 ,  B01J37/04 ,  B01J37/00 ,  B01J37/08 ,  C07C209/52 ,  C07C67/303 ,  C07C29/145 ,  C07C209/48 ,  C10G2/00

Abstract: The present invention relates to catalytically active material, comprising grains of non-graphitizing carbon with iron nanoparticles dispersed therein, wherein dp, the average diameter of iron nanoparticles in the non-graphitizing carbon grains, is in the range of 1 nm to 20 nm, D, the average distance between iron nanoparticles in the non-graphitizing carbon grains, is in the range of 2 nm to 150 nm, and ω, the combined total mass fraction of metal in the non-graphitizing carbon grains, is in the range of 30 wt % to 70 wt % of the total mass of the non-graphitizing carbon grains, and wherein dp, D and ω conform to the following relation: 4.5 dp/ω>D≥0.25 dp/ω. The present invention, further, relates to a process for the manufacture of material according to the invention, as well as its use as a catalyst.

公开(公告)号：US20220251022A1

公开(公告)日：2022-08-11

申请号：US17629906

申请日：2020-07-22

Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.

Inventor： Keisuke TOMAKI ,  Shiori SHINAGAWA ,  Shinyou SHIRAI

IPC: C07C209/48 ,  B01J23/75 ,  B01J23/755

Abstract: A method for producing an aromatic aminomethyl, comprising hydrogenating an aromatic nitrile in a mixed solvent comprising a hydrocarbon solvent and a polar organic solvent having a solubility parameter (SP value) of 10 or more in the presence of a quaternary ammonium compound and a hydrogenation catalyst.

公开(公告)号：US20210198185A1

公开(公告)日：2021-07-01

申请号：US17138578

申请日：2020-12-30

Applicant: Ascend Performance Materials Operations LLC

Inventor： Sanjay Dube ,  Benjamin Haseltine ,  Jefferson Thomas Ebert ,  Darrick Elmore

IPC: C07C253/34 ,  C07C209/48 ,  B01D3/06 ,  B01D3/42

Abstract: A process for producing an intermediate adiponitrile stream, the process comprising separating an adiponitrile process stream comprising less than 50 wt % adiponitrile, and optionally TCH, to form the intermediate adiponitrile stream comprising at least 5 wt % adiponitrile and a heavies stream comprising high-boiling components and optionally solid impurities; and optionally utilizing at least a portion of the intermediate adiponitrile stream outside of the process.

公开(公告)号：US10919838B2

公开(公告)日：2021-02-16

申请号：US16622565

申请日：2018-06-14

Applicant: RHODIA OPERATIONS

Inventor： Eric Muller ,  Bala N. S Thota

IPC: C07D493/08 ,  C07C209/48 ,  C07C211/49 ,  C07D407/10

Abstract: The present invention relates to the production of tri-functional aromatic molecules from diformylfuran, in particular to the production of tri-methyl benzene derivatives such as for example trimellitic acid or 1,2,4-tri(aminomethyl)benzene from diformylfuran and its derivatives.