Patents by Inventor Khalil Nasrallah

Khalil Nasrallah 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).

  • Method and system for metal recovery from arsenical bearing sulfides ores
    Patent number: 11408051
    Abstract: There is provided a method for the removal of arsenic from an arsenical bearing sulfides ore, comprising a thermal treatment of arsenical sulfide in the presence of sulfur dioxide, yielding a calcine and a sublimate, the sublimate containing arsenious oxide. The method allows recovering metallic value from an arsenic-bearing metallic sulfides ore, by recovery of the calcine comprising the metallic value of the ore.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: August 9, 2022
    Inventors: Jean-Marc Lalancette, David Lemieux, Romain Barbaroux, Gabriel Garcia-Curiel, Khalil Nasrallah
  • System and method of fabrication of arsenic glass
    Patent number: 11168014
    Abstract: A method of fabrication of arsenic glass, comprising forming pellets of an arsenic-containing glass-forming mixture comprising arsenic in a range between about 30 and about 50% w/w and glass forming elements, and melting the pellets by direct heating to a temperature in a range between about 950 and about 1250° C.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: November 9, 2021
    Inventors: Khalil Nasrallah, Romain Barbaroux, Jean-Marc Lalancette, David Lemieux
  • SYSTEM AND METHOD OF FABRICATION OF ARSENIC GLASS
    Publication number: 20190330092
    Abstract: A method of fabrication of arsenic glass, comprising forming pellets of an arsenic-containing glass-forming mixture comprising arsenic in a range between about 30 and about 50% w/w and glass forming elements, and melting the pellets by direct heating to a temperature in a range between about 950 and about 1250° C.
    Type: Application
    Filed: April 30, 2018
    Publication date: October 31, 2019
    Inventors: KHALIL NASRALLAH, ROMAIN BARBAROUX, JEAN-MARC LALANCETTE, DAVID LEMIEUX
  • METHOD AND SYSTEM FOR METAL RECOVERY FROM ARSENICAL BEARING SULFIDES ORES
    Publication number: 20180282839
    Abstract: There is provided a method for the removal of arsenic from an arsenical bearing sulfides ore, comprising a thermal treatment of arsenical sulfide in the presence of sulfur dioxide, yielding a calcine and a sublimate, the sublimate containing arsenious oxide. The method allows recovering metallic value from an arsenic-bearing metallic sulfides ore, by recovery of the calcine comprising the metallic value of the ore.
    Type: Application
    Filed: January 22, 2018
    Publication date: October 4, 2018
    Inventors: JEAN-MARC LALANCETTE, DAVID LEMIEUX, ROMAIN BARBAROUX, GABRIEL GARCIA-CURIEL, KHALIL NASRALLAH
  • Method for vitrification of arsenic and antimony
    Patent number: 9981295
    Abstract: A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: May 29, 2018
    Assignee: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
    Inventors: Jean-Marc Lalancette, David Lemieux, Khalil Nasrallah, Gabriel Garcia Curiel, Romain Barbaroux
  • METHOD FOR VITRIFICATION OF ARSENIC AND ANTIMONY
    Publication number: 20180023165
    Abstract: A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 25, 2018
    Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.
    Inventors: Jean-Marc Lalancette, David Lemieux, Khalil Nasrallah, Gabriel Garcia Curiel, Romain Barbaroux
  • Method and composition for sequestration of arsenic
    Patent number: 9849438
    Abstract: There is provided a method and composition for sequestration of arsenic, the method comprising melting an arsenic-containing material in the presence of iron oxide and glass, and yielding a resulting glass incorporating arsenic. The resulting glass has an arsenic content comprised in a range between 1 and 25% w/w and an iron content comprised in a range between 8 and 20% w/w.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: December 26, 2017
    Assignee: Dundee Sustainable Technologies Inc.
    Inventors: Khalil Nasrallah, Bertrand Dubreuil, Jean-Marc Lalancette, David Lemieux
  • METHOD AND COMPOSITION FOR SEQUESTRATION OF ARSENIC
    Publication number: 20160375423
    Abstract: There is provided a method and composition for sequestration of arsenic, the method comprising melting an arsenic-containing material in the presence of iron oxide and glass, and yielding a resulting glass incorporating arsenic. The resulting glass has an arsenic content comprised in a range between 1 and 25% w/w and an iron content comprised in a range between 8 and 20% w/w.
    Type: Application
    Filed: March 31, 2016
    Publication date: December 29, 2016
    Applicant: Dundee Sustainable Technologies Inc.
    Inventors: Khalil Nasrallah, Bertrand Dubreuil, Jean-Marc Lalancette, David Lemieux