Patents by Inventor Yongqian Chu

Yongqian Chu 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).

  • Industrial waste salt resourceful treatment method and device
    Patent number: 11332379
    Abstract: An industrial waste salt resourceful treatment method comprises the following steps: the industrial waste salt is sequentially subject to dissolving, chemical pre-purification, deep purification, organic matter concentration reduction, adsorption and oxidation decolorization and multi-effect evaporative crystallization to respectively obtain sodium sulfate, sodium chloride and sodium nitrate crystals; the crystallization temperature of sodium sulfate is in a range of 75° C. to 85° C.; the crystallization temperature of sodium chloride is in a range of 60 to 70° C.; and the crystallization temperature of sodium nitrate is in a range of 45° C. to 55° C. An industrial waste salt resourceful treatment device is further provided.
    Type: Grant
    Filed: July 26, 2021
    Date of Patent: May 17, 2022
    Assignee: GO HIGHER ENVIRONMENT GROUP CO., LTD.
    Inventors: Futai Chen, Yongqian Chu, Yan Yang, Liqiang Bai
  • INDUSTRIAL WASTE SALT RESOURCEFUL TREATMENT METHOD AND DEVICE
    Publication number: 20210347649
    Abstract: An industrial waste salt resourceful treatment method comprises the following steps: the industrial waste salt is sequentially subject to dissolving, chemical pre-purification, deep purification, organic matter concentration reduction, adsorption and oxidation decolorization and multi-effect evaporative crystallization to respectively obtain sodium sulfate, sodium chloride and sodium nitrate crystals; the crystallization temperature of sodium sulfate is in a range of 75° C. to 85° C.; the crystallization temperature of sodium chloride is in a range of 60 to 70° C.; and the crystallization temperature of sodium nitrate is in a range of 45° C. to 55° C. An industrial waste salt resourceful treatment device is further provided.
    Type: Application
    Filed: July 26, 2021
    Publication date: November 11, 2021
    Inventors: Futai Chen, Yongqian Chu, Yan Yang, Liqiang Bai