Patents by Inventor Zhao Wenfeng

Zhao Wenfeng 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: 10377728
    Abstract: A preparation method of an acidic and hydrophobic Pd/C catalytic material comprises performing a simple treatment with chlorosulfonic acid and trimethylchlorosilane, washing and drying a treatment product to obtain a modified Pd/C catalytic material. A method for preparing 2,5-methylfuran by catalyzing a carbohydrate with modified Pd/C comprises: dissolving the carbohydrate in alcohol, allowing a reaction to proceed with modified Pd/C as a catalyst and polymethylhydrosiloxane as a hydrogen donor at a temperature of 80˜140° C. for 1-5 hours, and performing centrifugation to separate the catalyst from the product. The content of the modified Pd/C content is 1-3 mol % relative to the carbohydrate; the polymethylhydrosiloxane amount is equivalent to 4-10 times the carbohydrate amount, and the carbohydrate concentration in the alcohol is 2-6 wt %.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 13, 2019
    Assignee: GUIZHOU UNIVERSITY
    Inventors: Li Hu, Yang Song, Zhao Wenfeng, Xue Wei, Fang Zhen
  • Publication number: 20190152936
    Abstract: A preparation method of an acidic and hydrophobic Pd/C catalytic material comprises performing a simple treatment with chlorosulfonic acid and trimethylchlorosilane, washing and drying a treatment product to obtain a modified Pd/C catalytic material. A method for preparing 2,5-methylfuran by catalyzing a carbohydrate with modified Pd/C comprises: dissolving the carbohydrate in alcohol, allowing a reaction to proceed with modified Pd/C as a catalyst and polymethylhydrosiloxane as a hydrogen donor at a temperature of 80˜140° C. for 1-5 hours, and performing centrifugation to separate the catalyst from the product. The content of the modified Pd/C content is 1-3 mol % relative to the carbohydrate; the polymethylhydrosiloxane amount is equivalent to 4-10 times the carbohydrate amount, and the carbohydrate concentration in the alcohol is 2-6 wt %.
    Type: Application
    Filed: October 12, 2017
    Publication date: May 23, 2019
    Applicant: Guizhou University
    Inventors: Li Hu, Yang Song, Zhao Wenfeng, Xue Wei, Fang Zhen