Patents by Inventor Steeve Lafontaine

Steeve Lafontaine 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 recovering titanium dioxide from titanium containing materials
    Patent number: 10480047
    Abstract: A process operating at super-atmospheric pressure for leaching a titanium containing ore with an HCl and producing titanium dioxide with integrated steps of solvent extraction for removing iron from the leached ore and solvent extraction of a resulting titanium enriched raffinate to produce particles suitable for finishing into pigment grade TiO2. The process can integrate the recovery of HCl from both solvent recovery steps and the recovery of solvent. The process also produces commercial grade ferric chloride.
    Type: Grant
    Filed: June 28, 2018
    Date of Patent: November 19, 2019
    Assignee: ARGEX TITANIUM INC.
    Inventors: Eric Larochelle, Carroll Moore, Tommee Larochelle, Richard A. Sixberry, Oumar Bashir, Steeve Lafontaine