Patents by Inventor Indranil Chattoraj

Indranil Chattoraj 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).

  • Process for recovery of gallium
    Patent number: 7338589
    Abstract: The present invention relates to a process for the recovery of gallium from Bayer process liquors. Bayer process liquor is obtained from alumina industries and contains 450 g/L Na2O, 80 g/L Al2O3 and 190±20 ppm of gallium. The present invention utilizes an organic and inorganic phase for a two stage separation process to recover gallium with high purity.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: March 4, 2008
    Assignee: Council of Scientific and Industrial Research
    Inventors: Patcha Ramachandra Rao, Puvvada George Vijay Kumar, Archana Agrawal, Indranil Chattoraj
  • Process for recovery of gallium
    Publication number: 20040042945
    Abstract: The present invention relates to a process for the recovery of gallium from Bayer process liquors. Bayer process liquor is obtained from alumina industries and contains 450 g/L Na2O, 80 g/L Al2O3 and 190±20 ppm of gallium. The present invention utilizes an organic and inorganic phase for a two stage separation process to recover gallium with high purity.
    Type: Application
    Filed: March 20, 2003
    Publication date: March 4, 2004
    Applicant: COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH
    Inventors: Patcha Ramachandra Rao, Puvvada George Vijay Kumar, Archana Agrawal, Indranil Chattoraj