Patents by Inventor Kuniko ATAE

Kuniko ATAE 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 SELECTIVELY RECOVERING ARSENIC-CONTAINING COPPER MINERAL, AND FLOTATION AGENT USED IN SAME
    Publication number: 20230338971
    Abstract: In order to decrease arsenic, which is a harmful substance, in a copper concentrate, provided is a method for selectively recovering an arsenic-containing copper mineral from a mixture including the arsenic-containing copper mineral and a non-arsenic-containing copper mineral, and a flotation agent used in the same. For a collecting agent, which is a component of the flotation agent used in a flotation step for selectively recovering the arsenic-containing copper mineral from the mixture including the arsenic-containing copper mineral and the non-arsenic-containing copper mineral, a sulfide compound having an R1—S—R2 (in this expression, R1 is a C5-10 alkyl group, and R2 is a C1-10 alkyl group) structure such as methyl n-octyl sulfide or di-n-octyl sulfide is used.
    Type: Application
    Filed: July 15, 2021
    Publication date: October 26, 2023
    Applicant: Japan Organization for Metals and Energy Security
    Inventors: Taro KAMIYA, Kosuke KONNO, Tatsuhiro ONO, Refilwe Sandra MAGWANENG, Yoshinari BABA, Kuniko ATAE