Patents by Inventor Yongfeng Wan

Yongfeng Wan 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 for enhancing compressive strength of lead smelting water-quenched slag-based cementitious material by mechanical activation
    Patent number: 11919826
    Abstract: A method for enhancing compressive strength of a lead smelting water-quenched slag-based cementitious material by mechanical activation is provided, belonging to the technical field of solid waste resource treatment. The method includes following steps: grinding and activating water-quenched slag from lead smelting, then mixing with calcium-based solid waste, magnesium-based solid waste, magnesium oxide, portland cement and water, and performing a steam curing and a curing at normal temperature on cementitious material slurry obtained to obtain the lead smelting water-quenched slag-based cementitious material.
    Type: Grant
    Filed: May 19, 2023
    Date of Patent: March 5, 2024
    Assignee: XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
    Inventors: Wenhuan Liu, Hui Li, Zhongzhong Zhao, Yongfeng Wan, Renhao Du, Yiwen Jiang