Patents by Inventor Rolando Lastra

Rolando Lastra 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 metals leaching and recovery from radioactive wastes
    Patent number: 9896744
    Abstract: Provided is a process for recovering metals from solid radioactive waste, preferably uranium, cesium, mercury, thorium, rare earths or combinations thereof. The process comprises a leaching step and a separation step. The leaching step comprises contacting the solid radioactive waste with an aqueous inorganic acid and a leaching salt to produce a mixture of a metal-rich leachate and a metal-poor waste, which are separated in the separation step. Also provided is a process for recovering metals from solid radioactive waste comprising an attrition step, a leaching step, a washing step, a combination step and a recovery step.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: February 20, 2018
    Assignee: Her Majesty the Queen in Right of Canada as Represented by the Minister of Natural Resources Canada
    Inventors: Nicolas Reynier, Rolando Lastra, Nabil Bouzoubaa, Mark Chapman
  • Process for Metals Leaching and Recovery from Radioactive Wastes
    Publication number: 20160348214
    Abstract: Provided is a process for recovering metals from solid radioactive waste, preferably uranium, cesium, mercury, thorium, rare earths or combinations thereof. The process comprises a leaching step and a separation step. The leaching step comprises contacting the solid radioactive waste with an aqueous inorganic acid and a leaching salt to produce a mixture of a metal-rich leachate and a metal-poor waste, which are separated in the separation step. Also provided is a process for recovering metals from solid radioactive waste comprising an attrition step, a leaching step, a washing step, a combination step and a recovery step.
    Type: Application
    Filed: June 1, 2015
    Publication date: December 1, 2016
    Inventors: Nicolas Reynier, Rolando Lastra, Nabil Bouzoubaa, Mark Chapman