公开(公告)号：US20230211321A1

公开(公告)日：2023-07-06

申请号：US17998887

申请日：2021-05-07

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD. ,  NAATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENC AND TECHNOLOGY

Inventor： Hiroshi TSUTSUMI ,  Daisuke YAMASHITA ,  Akihiro KAMON ,  Akiyo OZAWA ,  Tetsuya NAMBA ,  Rahat JAVAID ,  Yuichi MANAKA

IPC: B01J23/46 ,  B01J21/06 ,  B01J35/00 ,  C01C1/04

CPC classification number: B01J23/462 ,  B01J21/063 ,  B01J35/0066 ,  C01C1/0411

Abstract: Provided is a catalyst that is free from catalyst deactivation caused by reaction of the support and exhibits good catalytic activity in an ammonia synthesis reaction in a low-temperature, low-pressure process. The present invention relates to an ammonia synthesis catalyst having a structure in which at least one of ruthenium or an oxide of ruthenium is loaded on a titanium suboxide support represented by the composition formula TiOx where x represents a number satisfying 1.5

公开(公告)号：US20210170371A1

公开(公告)日：2021-06-10

申请号：US16769313

申请日：2018-12-11

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Yuhei SOGA ,  Akihiro KAMON

IPC: B01J27/18 ,  C08G63/85 ,  B01J21/06

Abstract: The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction of a dicarboxylic acid or an ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a water-insoluble or hardly water-soluble phosphate having on the surfaces a coating layer of titanic acid in an amount, of 0.1 to 100 parts by weight in terms of TiO2 per 100 parts by weight of the phosphate.

公开(公告)号：US20160229953A1

公开(公告)日：2016-08-11

申请号：US15022226

申请日：2014-09-18

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Akihiro KAMON ,  Keiichi IKEGAWA ,  Jun NAITO ,  Keiichi TABATA

IPC: C08G63/85 ,  C08G63/183 ,  C08G63/80

CPC classification number: C08G63/85 ,  C08G63/183 ,  C08G63/80

Abstract: The invention provides a method for producing polyester comprising: a step for preparing an oligomer comprising a dicarboxylic acid diester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, and then a step for subjecting the oligomer to melt-polycondensation to provide polyester as melt-polycondensate, wherein at least in the step of subjecting the oligomer to melt-polycondensation of the two steps, the oligomer is subjected to melt-polycondensation in the presence of titanium nitride and, as a polycondensation catalyst, particles of a solid base having a coating layer of titanic acid on the surfaces, thereby to provide polyester as melt-polycondensate.

Abstract translation: 本发明提供一种生产聚酯的方法，包括：通过酯化反应或二羧酸或其成酯衍生物与二醇之间的酯交换反应制备包含二羧酸二酯的低聚物的步骤，然后， 所述低聚物进行熔融缩聚以提供聚酯作为熔融缩聚物，其中至少在使所述低聚物进行所述两个步骤的熔融缩聚的步骤中，所述低聚物在氮化钛存在下进行熔融缩聚，如 缩聚催化剂，在表面具有钛酸涂层的固体碱的颗粒，从而提供作为熔融缩聚物的聚酯。

公开(公告)号：US20140073758A1

公开(公告)日：2014-03-13

申请号：US13955529

申请日：2013-07-31

Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.

Inventor： Keiichi TABATA ,  Akihiro KAMON ,  Keiichi IKEGAWA ,  Jun NAITO

IPC: B01J21/06 ,  C08G63/85 ,  B01J21/10

CPC classification number: B01J21/063 ,  B01J21/066 ,  B01J21/10 ,  C08G63/84 ,  C08G63/85

Abstract: The invention provides a polycondensation catalyst for producing polyester by an esterification reaction or a transesterification reaction between a dicarboxylic acid or an ester-forming derivative thereof and a glycol, wherein the polycondensation catalyst comprises particles of a solid base having on the surfaces an inner coating layer of titanic acid in an amount of from 0.1 to 50 parts by weight in terms of TiO2 per 100 parts by weight of the solid base, and an outer coating layer either of an oxide of at least one element selected from aluminum, zirconium and silicon, or of a composite oxide of at least two elements selected from aluminum, zirconium and silicon on the surface of the inner coating layer in an amount of from 1 to 50 parts by weight per 100 parts by weight of the solid base.

Abstract translation: 本发明提供了一种通过二羧酸或其成酯衍生物与二醇之间的酯化反应或酯交换反应制备聚酯的缩聚催化剂，其中缩聚催化剂包括在表面上具有内涂层 的钛酸酯，相对于固体碱为100重量份为0.1〜50重量份，以及选自铝，锆和硅中的至少一种元素的氧化物的外涂层， 或在内涂层表面上选自铝，锆和硅中的至少两种元素的复合氧化物，其量为每100重量份固体碱1至50重量份。