using organic acids

Industry

  • CPC
  • C22B3/0022
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    SELECTIVE EXTRACTION OF SEDIMENTOGENIC STRONTIUM AND BARIUM IN TERR...

    • Publication number 20180187288
    • Publication date Jul 5, 2018
    • Nanjing Center of Geological Survey, China Geological Survey
    • Aihua Wang
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    METHOD FOR PRODUCING COBALT SULFATE

    • Publication number 20140348731
    • Publication date Nov 27, 2014
    • Sumitomo Metal Mining Co., Ltd.
    • Takayuki Nakai
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    METHOD FOR EXTRACTING AND SEPARATING LIGHT RARE EARTH ELEMENT

    • Publication number 20120328493
    • Publication date Dec 27, 2012
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroto Sugahara
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    METHOD FOR EXTRACTING AND SEPARATING RARE EARTH ELEMENTS

    • Publication number 20100319491
    • Publication date Dec 23, 2010
    • Shin-Etsu Chemical Co., Ltd.
    • Hiroto Sugahara
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    Method for recovering rhodium

    • Publication number 20080236337
    • Publication date Oct 2, 2008
    • NIPPON MINING & METALS CO., LTD.
    • Shoujirou Usui
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...