Patents Assigned to Commonwealth Scientific & Indistrial Research Organisation
  • Solvent extraction process for separating cobalt and/or nickel from impurities in leach solutions
    Patent number: 7935322
    Abstract: A process for the separation of nickel, cobalt or both from impurity elements selected from one or more of calcium, magnesium, manganese and chloride contained in a leach solution, the process comprising the step of subjecting the leach solution to solvent extraction using a carboxylic acid (such as Versatic 10), a hydroxyoxime such as LIX 63, a kinetic accelerator such as TBP, and optionally a stabilizer.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 3, 2011
    Assignee: Commonwealth Scientific & Indistrial Research Organisation
    Inventors: Chu Yong Cheng, Mark Daniel Urbani