公开(公告)号：US20180318806A1

公开(公告)日：2018-11-08

申请号：US15772442

申请日：2015-11-13

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Congying Zhang ,  Shujie Ren ,  Xin Li ,  Zhenguo Liu ,  Xiaolong Wang ,  Ningning Wang ,  Hao Chen ,  Yuan Li ,  Xueli Yu ,  Jinhong Song

IPC: B01J23/89 ,  C07C213/02 ,  C08G65/325 ,  B01J37/02

Abstract: The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.

公开(公告)号：US09580380B2

公开(公告)日：2017-02-28

申请号：US14761890

申请日：2013-11-22

Applicant: WANHUA CHEMICAL GROUP CO., LTD. ,  WANHUA CHEMICAL (NINGBO) CO., LTD.

Inventor： Xin Li ,  Hao Chen ,  Congying Zhang ,  Shan Gao ,  Zhenguo Liu ,  Weijia Wang ,  Lei Tang ,  Zhipeng Liu ,  Yuan Li ,  Qingmei Jiang ,  Jinhong Song ,  Weiqi Hua ,  Hao Ding

IPC: C07C209/72 ,  B01J38/08 ,  B01J23/96

CPC classification number: C07C209/72 ,  B01J23/96 ,  B01J38/08 ,  C07C2601/14 ,  Y02P20/584 ,  C07C211/36

Abstract: Disclosed is a method for preparing diamino-dicyclohexyl methane (H12MDA) by hydrogenation of diamino-diphenyl methane (MDA). In the process, 4,4′-MDA used as the starting material is firstly hydrogenated to prepare 4,4′-H12MDA. When the activity of the catalyst is reduced, the feed is switched from 4,4′-MDA to the mixture of 2,4′-MDA and 4,4′-MDA, and then when the conversion is stabilized, the feed is switched to 4,4′-MDA again. The deactivated catalyst is activated on line by switching the feed to the mixture of 2,4′-MDA and 4,4′-MDA. 4,4′-H12MDA having the trans-trans isomer content of 16˜24 wt % is produced, and the mixture of 2,4′-H12MDA and 4,4′-H12MDA is also produced, wherein the content of 2,4′-H12MDA in the mixture is 4˜15 wt %.

Abstract translation: 公开了通过二氨基二苯基甲烷（MDA）的氢化制备二氨基二环己基甲烷（H12MDA）的方法。 在此过程中，首先氢化4,4'-MDA作为原料，制备4,4'-H12MDA。 当催化剂的活性降低时，进料从4,4'-MDA转变为2,4'-MDA和4,4'-MDA的混合物，然后当转化稳定时，进料被切换 至4,4'-MDA。 通过将进料转化为2,4'-MDA和4,4'-MDA的混合物，使活化的催化剂在线活化。 制备反式异构体含量为16〜24重量％的4,4'-H12MDA，并且还生产2,4'-H12MDA和4,4'-H12MDA的混合物，其中2,4 混合物中的-H12MDA为4〜15重量％。

公开(公告)号：US10814314B2

公开(公告)日：2020-10-27

申请号：US15772442

申请日：2015-11-13

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Congying Zhang ,  Shujie Ren ,  Xin Li ,  Zhenguo Liu ,  Xiaolong Wang ,  Ningning Wang ,  Hao Chen ,  Yuan Li ,  Xueli Yu ,  Jinhong Song

IPC: B01J23/89 ,  C07C213/02 ,  C08G65/325 ,  B01J23/72 ,  B01J23/44 ,  C07C217/08 ,  B01J23/755 ,  B01J37/02

Abstract: The present invention relates to a catalyst for aminating a polyether polyol and preparation method thereof and a method of preparing a polyetheramine using the catalyst. The catalyst has active components and a carrier. The active components are Ni, Cu, and Pd. The method of preparing the catalyst comprises the following steps: using a metal solution or a metal melt impregnated carrier, obtaining a catalyst precursor; and drying and calcinating the obtained catalyst precursor, so as to obtain a catalyst. By introducing the active component Pd in the catalyst, the present invention clearly improves selectivity of an amination catalyst with respect to a preaminated product, and increases raw material conversion rate.

公开(公告)号：US20190201878A1

公开(公告)日：2019-07-04

申请号：US16323671

申请日：2016-08-24

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Shujie Ren ,  Congying Zhang ,  Xin Li ,  Zhenguo Liu ,  Xiaolong Wang ,  Lei Tang ,  Zhipeng Liu ,  Zhanyu Gao ,  Jian Wu ,  Cong Wang ,  Yuan Li ,  Qingmei Jiang ,  Jinhong Song ,  Weiqi Hua ,  Hao Ding

IPC: B01J23/89 ,  B01J21/04 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01J37/18 ,  C08G65/325 ,  C08G65/333 ,  C07C213/02

CPC classification number: B01J23/8993 ,  B01J21/04 ,  B01J23/44 ,  B01J23/46 ,  B01J23/56 ,  B01J23/8926 ,  B01J23/8946 ,  B01J23/8966 ,  B01J37/0213 ,  B01J37/0236 ,  B01J37/035 ,  B01J37/08 ,  B01J37/18 ,  C07C213/02 ,  C08G65/325 ,  C08G65/3255 ,  C08G65/33306

Abstract: A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.

公开(公告)号：US11045794B2

公开(公告)日：2021-06-29

申请号：US16323671

申请日：2016-08-24

Applicant: Wanhua Chemical Group Co., Ltd.

Inventor： Shujie Ren ,  Congying Zhang ,  Xin Li ,  Zhenguo Liu ,  Xiaolong Wang ,  Lei Tang ,  Zhipeng Liu ,  Zhanyu Gao ,  Jian Wu ,  Cong Wang ,  Yuan Li ,  Qingmei Jiang ,  Jinhong Song ,  Weiqi Hua ,  Hao Ding

IPC: B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J21/10 ,  B01J21/12 ,  B01J21/14 ,  B01J23/44 ,  B01J23/56 ,  B01J23/89 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01J37/18 ,  C07C213/02 ,  C08G65/325 ,  C08G65/333 ,  B01J23/46

Abstract: A supported catalyst used for synthesizing a polyether amine, and a manufacturing method of the catalyst. The catalyst comprises: a porous oxide as a support; Ni, Cu, Pd, and Rh as active components; and one or more of any of Zr, Cr, Mo, Fe, Zn, Sn, Bi, Ce, La, Hf, Sr, Sb, Mg, Be, Re, Ta, Ti, Sc, Ge and related metals as an auxiliary agent. The catalyst can be used in an amination reaction for a large molecular weight polyether polyol, and is particularly active and selective for an amination reaction of a low molecular weight polyether polyol. The catalyst has a simple and economic manufacturing technique and good potential for future applications.