Patents by Inventor Zaigang YANG

Zaigang YANG 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).

  • Publication number: 20220323897
    Abstract: The apparatus includes one or more cylindrical housings connected to one another, a jacket on an outer side of a housing, an inner cylinder disposed at least in an interior of a first cylindrical housing, a heat insulation gasket, inner members, a corrosive high temperature gas inlet disposed on the heat insulation gasket, a gas and liquid phase outlet disposed at a bottom of the housing or a bottom of a last housing and a coolant inlet and outlet connected to an interior of the jacket. The heat insulation gasket seals the first cylindrical housing and a top of the inner cylinder in the interior of the first cylindrical housing. The inner members are distributed along a wall of the housing, communicate an interior of the jacket with an interior of the housing, and distribute a liquid in the interior of the jacket to the interior of the housing.
    Type: Application
    Filed: August 26, 2020
    Publication date: October 13, 2022
    Inventors: Mingyan SONG, Yifeng CHEN, Xiaofei QIAO, Changhao KE, Jingkui WANG, Haibing JIA, Nan ZHAO, Jinke JIANG, Peng LIU, Tianyong YU, Yan SONG, Zaigang YANG, Wuxi LUO, Changbao XU, Junxian LIU, Jianmao GUO
  • Patent number: 11389780
    Abstract: Disclosed is a method for preparing ?-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the ?-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the ?-phenylethanol to reach 99% or more.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: July 19, 2022
    Assignee: WANHUA CHEMICAL GROUP CO., LTD.
    Inventors: Wei Zeng, Changsheng Chen, Yuan Li, Zaigang Yang, Hengdong Yang, Jianglin Hu, Yunhai Liu, Ke Ding, Yuanye Bao
  • Publication number: 20200298198
    Abstract: Disclosed is a method for preparing ?-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the ?-phenylethanol. The catalyst is Ni—Cu/Al2O3 nanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the ?-phenylethanol to reach 99% or more.
    Type: Application
    Filed: March 14, 2017
    Publication date: September 24, 2020
    Inventors: Wei ZENG, Changsheng CHEN, Yuan LI, Zaigang YANG, Hengdong YANG, Jianglin HU, Yunhai LIU, Ke DING, Yuanye BAO
  • Patent number: 9926259
    Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 27, 2018
    Assignee: Wanhua Chemical Group Co., Ltd.
    Inventors: Hua Mei, Hao Chen, Dewei Yu, Congying Zhang, Hui Wang, Yuan Li, Zhongying Chen, Zilin Ni, Qingmei Jiang, Shanjian Cao, Zaigang Yang, Jun Qu, Jinhong Song, Bingbo Hu
  • Publication number: 20180065916
    Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.
    Type: Application
    Filed: September 29, 2017
    Publication date: March 8, 2018
    Inventors: Hua Mei, Hao Chen, Dewei Yu, Congying Zhang, Hui Wang, Yuan Li, Zhongying Chen, Zilin Ni, Qingmei Jiang, Shanjian Cao, Zaigang Yang, Jun Qu, Jinhong Song, Bingbo Hu
  • Publication number: 20160207876
    Abstract: The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.
    Type: Application
    Filed: March 7, 2014
    Publication date: July 21, 2016
    Inventors: Hua Mei, Hao CHEN, Dewei YU, Congying ZHANG, Hui WANG, Yuan LI, Zhongying CHEN, Zilin NI, Qingmei JIANG, Shanjian CAO, Zaigang YANG, Jun QU, Jinhong SONG, Bingbo HU