Patents by Inventor Junming Xu

Junming Xu 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).

  • Method of separating hemicellulose through efficient pretreatment of fibrous biomass and comprehensively utilizing the same
    Patent number: 11802169
    Abstract: The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: October 31, 2023
    Assignee: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF
    Inventors: Kui Wang, Jianchun Jiang, Yanyan Liu, Junming Xu, Min Wei, Linshan Wei, Ruizhen Wang
  • METHOD OF SEPARATING HEMICELLULOSE THROUGH EFFICIENT PRETREATMENT OF FIBROUS BIOMASS AND COMPREHENSIVELY UTILIZING THE SAME
    Publication number: 20220002446
    Abstract: The invention proposes a method of separating hemicellulose through efficient pretreatment of fibrous biomass materials. Fibrous biomass materials are first pretreated by the slurry method: the fibrous biomass materials are milled through ball mills and sieved to obtain fibrous biomass material powder, and the powder is mixed with water at room temperature to obtain slurry premixed solution of the fibrous biomass material powder. Through regulation and control of the reaction temperature, the time and the water amount, efficient hydrothermal removal of hemicellulose from the fibrous biomass material powder is realized. After the mixed solution is filtered, the filtrate is subject to gradient sedimentation to separate hemicellulose with low dispersity, and the sediment is then dried before storage. After the filter residue is mixed with polar aprotic solvent and water, and heated and stirred in a pressurized reactor, high-purity cellulose is obtained through filtering and separation.
    Type: Application
    Filed: August 16, 2019
    Publication date: January 6, 2022
    Applicant: INSTITUTE OF CHEMICAL INDUSTRY OF FOREST PRODUCTS, CAF
    Inventors: Kui Wang, Jianchun Jiang, Yanyan Liu, Junming Xu, Min Wei, Linshan Wei, Ruizhen Wang
  • Nanocubic CoO/few-layer graphene composites and related anode components
    Patent number: 10581062
    Abstract: Co3O4 nanocubes as can be homogeneously assembled on a few-layer graphene sheet, such a composite as can be used in conjunction with an anode and incorporated into a high energy lithium-ion battery.
    Type: Grant
    Filed: January 14, 2016
    Date of Patent: March 3, 2020
    Assignee: NORTHWESTERN UNIVERSITY
    Inventors: Jinsong Wu, Junming Xu, Vinayak P. Dravid
  • Nanocubic Co3O4/Few-Layer Graphene Composites and Related Anode Components
    Publication number: 20160204416
    Abstract: Co3O4 nanocubes as can be homogeneously assembled on a few-layer graphene sheet, such a composite as can be used in conjunction with an anode and incorporated into a high energy lithium-ion battery.
    Type: Application
    Filed: January 14, 2016
    Publication date: July 14, 2016
    Inventors: Jinsong Wu, Junming Xu, Vinayak P. Dravid