Patents by Inventor Wendel Johnson Rodrigues

Wendel Johnson Rodrigues 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 removing uranium in copper concentrate via magnetic separation
    Patent number: 9790571
    Abstract: The present invention describes a process for removing uranium from a copper concentrate by magnetic separation (low and high field) to reduce the uranium content to commercially acceptable levels.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 17, 2017
    Assignee: VALE S.A
    Inventors: Antonio Euclides Jaques Marques, Wesley José Da Silva, Mauricio Guimarães Bergerman, Wendel Johnson Rodrigues, Keila Lane de Carvalho Gonçalves
  • Reverse iron ore flotation by collectors in aqueous nanoemulsion
    Patent number: 9403174
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: August 2, 2016
    Assignee: CLARIANT S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues
  • Reverse Iron Ore Flotation By Collectors In Aqueous Nanoemulsion
    Publication number: 20150076038
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Application
    Filed: June 18, 2014
    Publication date: March 19, 2015
    Applicant: Clariant S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues
  • Reverse iron ore flotation by collectors in aqueous nanoemulsion
    Patent number: 8784678
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: July 22, 2014
    Assignee: Clariant S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues
  • PROCESS FOR REMOVING URANIUM IN COPPER CONCENTRATE VIA MAGNETIC SEPARATION
    Publication number: 20140137703
    Abstract: The present invention describes a process for removing uranium from a copper concentrate by magnetic separation (low and high field) to reduce the uranium content to commercially acceptable levels.
    Type: Application
    Filed: November 6, 2013
    Publication date: May 22, 2014
    Applicant: VALE S.A.
    Inventors: Antonio Euclides Jaques MARQUES, Wesley José Da Silva, Mauricio Guimarães Bergerman, Wendel Johnson Rodrigues, Keila Lane de Carvalho Gonçalves
  • Reverse Iron Ore Flotation By Collectors In Aqueous Nanoemulsion
    Publication number: 20100213105
    Abstract: The present invention relates to a process for concentration of silicate-containing minerals and ores by froth flotation, in particular to a reverse flotation process, in the presence of a finely dispersed collecting agent characterized by a specific droplet size distribution.
    Type: Application
    Filed: July 18, 2008
    Publication date: August 26, 2010
    Applicant: CLARIANT (BRAZIL) S.A.
    Inventors: Antonio Pedro De Oliveira Filho, Wendel Johnson Rodrigues