Patents by Inventor Honggui Yu

Honggui Yu 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).

  • Chemical pulping method
    Patent number: 9951476
    Abstract: The present invention provides a pulping method. Caustic soda is replaced with cheap lime to manufacture pulp in high efficiency, and meanwhile complexation, flocculation and acid-base neutralization of aluminum sulfate are further utilized, so as to recycle effective ingredients in a black liquid, achieve a yield approximate to a mechanical pulp yield, obtain quality of the chemical pulp, implement cyclic utilization of the black liquid and solve the pollution thereof.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: April 24, 2018
    Assignee: Beijing Insight Biomass LLC
    Inventors: Yingwu Yin, Peng Wan, Honggui Yu, Yujuan Zhang, Xiangxiang Sun, Lingyan Zhang
  • Chemical Pulping Method
    Publication number: 20150176207
    Abstract: The present invention provides a pulping method. Caustic soda is replaced with cheap lime to manufacture pulp in high efficiency, and meanwhile complexation, flocculation and acid-base neutralization of aluminum sulfate are further utilized, so as to recycle effective ingredients in a black liquid, achieve a yield approximate to a mechanical pulp yield, obtain quality of the chemical pulp, implement cyclic utilization of the black liquid and solve the pollution thereof.
    Type: Application
    Filed: June 25, 2013
    Publication date: June 25, 2015
    Applicant: BEIJING INSIGHT BIOMASS LLC
    Inventors: Yingwu Yin, Peng Wan, Honggui Yu, Yujuan Zhang, Xiangxiang Sun, Lingyan Zhang