Patents by Inventor Linghan TUO

Linghan TUO 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).

  • Continuous crystallization method under control of multistage membrane
    Patent number: 10675557
    Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 9, 2020
    Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiaobin Jiang, Guannan Li, Gaohong He, Linghan Tuo, Dapeng Lu, Wu Xiao, Xiangcun Li, Xuemei Wu
  • CONTINUOUS CRYSTALLIZATION METHOD UNDER CONTROL OF MULTISTAGE MEMBRANE
    Publication number: 20200114277
    Abstract: The present invention provides a continuous crystallization method under control of the multistage membrane modules, and belongs to the technical field of crystallization engineering. A crystallization solution is added to a crystallizer, and a stirring apparatus and a temperature control apparatus are started. After the system running stability, the loop of crystallization is started. Meanwhile, the coolant or antisolvent feed liquid loop is also started. The crystallization solution can respectively conduct crystal nucleation, growth and ripening in the multistage membrane modules, and then the crystallization solution is transported into a filter device and a drying apparatus to obtain the final crystal products. The desired crystal products can be obtained by the systematical control of the nucleation and crystal growth through the flow and the temperature of the crystallization solution, coolant or antisolvent feed liquid, and the contact time between two liquid phases.
    Type: Application
    Filed: November 3, 2017
    Publication date: April 16, 2020
    Inventors: Xiaobin JIANG, Guannan LI, Gaohong HE, Linghan TUO, Dapeng LU, Wu XIAO, Xiangcun LI, Xuemei WU