Patents by Inventor Giorgio Rinelli

Giorgio Rinelli 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 rutile flotation by means of N-benzoyl-N-phenylhydroxylamine as a selective collector
    Patent number: 4461701
    Abstract: A process for rutile flotation from rutile ores associated with iron containing components, in which process an alcoholic solution is employed of N-benzoyl-N-phenylhydroxylamine as a flotation collector of rutile. This process is especially suitable for rutile separation by flotation from rutile-hematite ores, with the use of said selective collector at pH values between 1 and 2.5.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: July 24, 1984
    Assignee: Consiglio Nazionale delle Richerche
    Inventors: Giorgio Rinelli, Anna M. Marabini
  • Hydrometallurgical process for separating lead and zinc from oxidized ore
    Patent number: 4191729
    Abstract: A process for separating lead and zinc from oxidized ore is disclosed. The process is directed to the ammoniacal leaching of the ore in the presence of the anions of polycarboxylic acids, particularly sodium tartrate, and the subsequent selective extraction by means of complex-producing solvents.
    Type: Grant
    Filed: August 24, 1978
    Date of Patent: March 4, 1980
    Assignee: Consiglio Nazionale delle Ricerche
    Inventors: Giorgio Rinelli, Carlo Abbruzzese