Patents by Inventor John Patrick Graell Moore

John Patrick Graell Moore 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: 11377365
    Abstract: Disclosed is a process for the selective removal of copper compounds, and other impurities with respect to molybdenum and rhenium, from concentrates of molybdenite (MoS2) with a copper content that is higher than 0.5% in dry weight.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: July 5, 2022
    Assignee: MOLIBDENOS Y METALES S.A.
    Inventors: Manuel Enrique Guzman Manzo, John Patrick Graell Moore
  • Patent number: 10865461
    Abstract: Disclosed is a method for the removal of arsenic from materials containing a high arsenic content, or materials containing a high content of arsenic and selenium.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: December 15, 2020
    Assignee: MOLIBDENOS Y METALES S.A.
    Inventors: John Patrick Graell Moore, Manuel Enrique Guzman Manzo, Cristian Eduardo Pizarro Herrera, Christian Ignacio Soto Infante
  • Publication number: 20200131047
    Abstract: Disclosed is a process for the selective removal of copper compounds, and other impurities with respect to molybdenum and rhenium, from concentrates of molybdenite (MoS2) with a copper content that is higher than 0.5% in dry weight.
    Type: Application
    Filed: July 1, 2019
    Publication date: April 30, 2020
    Inventors: Manuel Enrique GUZMAN MANZO, John Patrick GRAELL MOORE
  • Publication number: 20180245179
    Abstract: Process for the removal of arsenic from materials with a high arsenic content or materials with a high content in arsenic and selenium that comprises: Adding the material to a pressurized reactor; Adding an alkaline lixiviating solution of a strong base dissolved in water to the reactor; Adding an oxidizing gas to the reactor; Mixing the above components in the reactor to obtain a homogenous pulp and subjecting it to a lixiviation under pressure that is selective for arsenic with respect to the other elements of interest present in the treated material; Subjecting the pulp obtained from the lixiviation step to a first solid-liquid separation step, thereby obtaining a liquor with dissolved arsenic and a solid with low arsenic content; Subjecting the liquor with dissolved arsenic to a precipitation of the arsenic with a precipitating agent, selecting compounds that supply the following cations: Ce3+, Fe3+, Mg2+, and a combination of Fe3+ and Ca2+; And, subjecting the product of the arsenic precipitation step
    Type: Application
    Filed: September 2, 2015
    Publication date: August 30, 2018
    Inventors: John Patrick Graell Moore, Manuel Enrique Guzman Manzo, Cristian Eduardo Pizarro Herrera, Christian Ignacio Soto Infante