Patents by Inventor Shujie Ren

Shujie Ren has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10814314
    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.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 27, 2020
    Assignee: Wanhua Chemical Group Co., Ltd.
    Inventors: Congying Zhang, Shujie Ren, Xin Li, Zhenguo Liu, Xiaolong Wang, Ningning Wang, Hao Chen, Yuan Li, Xueli Yu, Jinhong Song
  • Publication number: 20190201878
    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.
    Type: Application
    Filed: August 24, 2016
    Publication date: July 4, 2019
    Applicant: Wanhua Chemical Group Co., Ltd.
    Inventors: 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
  • Publication number: 20180318806
    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.
    Type: Application
    Filed: November 13, 2015
    Publication date: November 8, 2018
    Applicant: Wanhua Chemical Group Co., Ltd.
    Inventors: Congying Zhang, Shujie Ren, Xin Li, Zhenguo Liu, Xiaolong Wang, Ningning Wang, Hao Chen, Yuan Li, Xueli Yu, Jinhong Song