Patents by Inventor Yousuke EBISU

Yousuke EBISU 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 PRODUCING LOW-ARSENIC COPPER CONCENTRATE
    Publication number: 20240124952
    Abstract: In producing a copper concentrate by flotation in which copper minerals are separated from arsenic minerals by using oxoacids of sulfur and oxidants, the arsenic in the copper concentrate is reduced by a simple method. In producing the copper concentrate by the flotation in which an arsenic-containing copper ore is a raw material, the oxoacids of sulfur and hydrogen peroxide as the oxidant are used together as additive reagents, and added in this order.
    Type: Application
    Filed: February 25, 2022
    Publication date: April 18, 2024
    Applicant: NITTETSU MINING CO., LTD.
    Inventors: Yousuke EBISU, Tamaki SAITO, Kohei MITSUHASHI