Patents by Inventor Petrus Basson

Petrus Basson 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).

  • BINDER FOR AN AGGLOMERATION PROCESS
    Publication number: 20230416150
    Abstract: A binder for use in leaching a heap of a low-permeability ore containing at least one of the following: copper ore, copper/cobalt ore, nickel laterite ore and uranium ore, wherein the binder comprises an acid-proof cement formed by modifying ordinary Portland cement (OPC) with a supplementary cementitious material (SCM).
    Type: Application
    Filed: September 9, 2021
    Publication date: December 28, 2023
    Inventors: Stefan Walters Robertson, Sibabalwe Mxinwa, Petrus Basson, Mpumelelo Success Ndhlalose, Duduzile Nontobeko Nxumalo
  • Chloride heap leaching
    Patent number: 8070851
    Abstract: A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral below 600 mV (vs. SHE) to cause dissolution of the copper sulphide.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: December 6, 2011
    Assignee: BHP Billiton SA Limited
    Inventors: Elmar L. Muller, Petrus Basson, Michael J. Nicol
  • Chloride Heap Leaching
    Publication number: 20090173188
    Abstract: A heap leaching method to recover copper from a primary copper sulphide mineral wherein the mineral is leached in an acidic chloride/sulphate solution in the presence of oxygen with the surface potential of the mineral below 600 mV (vs. SHE) to cause dissolution of the copper sulphide.
    Type: Application
    Filed: November 6, 2008
    Publication date: July 9, 2009
    Inventors: Elmar L. Muller, Petrus Basson, Michael J. Nicol
  • Recovery of precious metal from sulphide minerals by bioleaching
    Patent number: 6860919
    Abstract: A method of recovering a precious metal from a sulphide mineral slurry which contains the precious metal which includes the steps of subjecting the slurry to a bioleaching process, supplying a feed gas which contains in excess of 21% oxygen by volume to the slurry, and recovering precious metal from a bioleach residue of the bioleaching process.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: March 1, 2005
    Assignee: Billiton Intellectual Property, B.V.
    Inventors: Alan Norton, John de Klerk Batty, David William Dew, Petrus Basson
  • Recovery of copper from copper bearing sulphide minerals by bioleaching with controlled oxygen feed
    Patent number: 6833020
    Abstract: A method of recovering copper from a copper bearing sulphide mineral which includes the steps of subjecting the slurry to a bioleaching process, supplying a feed gas which contains in excess of 21% oxygen by volume, to the slurry, and recovering copper from a bioleach residue of the bioleaching process.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: December 21, 2004
    Assignee: Billiton Intellectual Property, B.V.
    Inventors: David William Dew, Petrus Basson, Deborah Maxine Miller
  • Recovery of nickel from nickel bearing sulphide minerals by bioleaching
    Patent number: 6733567
    Abstract: A method of recovering nickel from a nickel bearing sulphide mineral slurry which includes the steps of subjecting the slurry to a bioleaching process, supplying a feed gas which contains in excess of 21% oxygen by volume, to the slurry, and recovering nickel from a bioleach residue of the bioleaching process.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 11, 2004
    Assignee: Billiton Intellectual Property, B.V.
    Inventors: David William Dew, Petrus Basson, Alan Norton, Frank Crundwell