Patents by Inventor Pascal Coursol

Pascal Coursol 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).

  • Patent number: 10337083
    Abstract: The processes can comprise feeding a furnace with a raw material. These materials can contain impurities and valuable metals (base metals, precious metals, platinum group metals, minor metals). The processes can allow the volatilization of arsenic and indium contained therein. Before volatilizing the material, composition of the material is optionally modified so as to obtain a ratio % S/(% (Cu/2)+% Ni+% Co) of about 0.5 to about 2. The processes can comprise feeding a melting device with the depleted material, and with a source of carbon in order to obtain a multi-layer product and an off gas. Before melting the depleted material, the depleted material composition is optionally modified so as to obtain a ratio % S/(% (Cu/2)+% Ni+% Co) of about 0.5 to about 2. Thus, it is possible to recover Cu, Ni and Co as well as several other metals, including In, Ge, Pb, Bi, precious metals and platinum group metals.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: July 2, 2019
    Assignee: 5N PLUS INC.
    Inventors: Pascal Coursol, Wu Shijun
  • Publication number: 20180251873
    Abstract: The processes of the present disclosure can comprise feeding a furnace with a raw material chosen from a copper-containing material, a nickel-containing material, a cobalt-containing material and mixtures thereof. These materials can be quite complex and contain various levels of impurities and valuable metals (base metals, precious metals, platinum group metals, minor metals). The processes allow the volatilization of arsenic and indium contained therein, thereby obtaining a material at least partially depleted in at least one of arsenic and indium, wherein before volatilizing the material, composition of the material is optionally modified so as to obtain a ratio % S/(% (Cu/2)+% Ni+% Co) of about 0.5 to about 2.
    Type: Application
    Filed: August 19, 2016
    Publication date: September 6, 2018
    Inventors: Pascal COURSOL, Wu SHIJUN
  • Patent number: 6395059
    Abstract: A novel process for refining high or low impurity blister copper containing S, As, Sb, Pb, Ni, Bi, Se, and/or Te to anode quality by means of a solution containing sulphates and alkali oxides is provided. More specifically, the process comprises the steps of (1) injecting air/O2 gas mixtures in the presence of an alkali source, over a period of time sufficient to complete the sulphur removal stage, with the innovation of removing the SO2 in situ, thereby forming an effective amount of a molten alkali sulphate on top of the copper bath, the temperature in the bath being maintained between 1100-1300° C.; (2) adding and/or injecting molten or solid alkali sulphates together with basic oxides or carbonates into the copper bath to promote the in situ scrubbing of As and Sb into a solution containing sulphates, while the dissolved oxygen in copper increases from 0.1 to 0.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: May 28, 2002
    Assignee: Noranda Inc.
    Inventors: Manuel Zamalloa, Yvan Tremblay, Pascal Coursol, Eva Carissimi