Patents by Inventor Ruberlan Gomes Da Silva

Ruberlan Gomes Da Silva 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).

  • Boussingaultite production process from liquid effluents containing magnesium sulphate
    Patent number: 9586835
    Abstract: Describes a method of producing a magnesium sulfate and hydrous ammonia double salt or Boussingaultite ((NH4)2SO4.MgSO4.6H2O), using as a source of magnesium a liquid effluent rich in magnesium sulfate originally from hydrometallurgical processes for the production of metals such as nickel, copper, rare earths. According to the invention, the process route for the production of Boussingaultite with physical properties suitable for use in fertilizer mixtures involves the steps of precipitating the Boussingaultite double salt, filtration and thermal drying.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: March 7, 2017
    Assignee: VALE S.A.
    Inventors: Angela Nair Avelar, Ruberlan Gomes Da Silva
  • BOUSSINGAULTITE PRODUCTION PROCESS FROM LIQUID EFFLUENTS CONTAINING MAGNESIUM SULPHATE
    Publication number: 20150298985
    Abstract: Describes a method of producing a magnesium sulfate and hydrous ammonia double salt or Boussingaultite ((NH4)2SO4.MgSO4.6H2O), using as a source of magnesium a liquid effluent rich in magnesium sulfate originally from hydrometallurgical processes for the production of metals such as nickel, copper, rare earths. According to the invention, the process route for the production of Boussingaultite with physical properties suitable for use in fertilizer mixtures involves the steps of precipitating the Boussingaultite double salt, filtration and thermal drying.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 22, 2015
    Inventors: Angela Nair AVELAR, Ruberlan Gomes Da Silva
  • Enhanced process to produce a thermofertiliser from potassium-bearing minerals
    Patent number: 8435322
    Abstract: A simplified and enhanced process to produce thermofertiliser obtained from potassium and phosphorous-bearing minerals is provided, where these elements may or may not be in citric acid or insoluble in water. The process also includes the use of specific additives, at the beginning of the process or immediately before the beginning of the thermal treatment step, in order to increase the potassium and phosphorous contents in the product and the overall efficiency of the process and also to promote the production of a high quality thermofertiliser.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: May 7, 2013
    Assignee: Vale S.A.
    Inventors: Sebastião Ailton Rodrigues, Ruberlan Gomes Da Silva
  • ENHANCED PROCESS TO PRODUCE A THERMOFERTILISER FROM POTASSIUM-BEARING MINERALS
    Publication number: 20110232347
    Abstract: A simplified and enhanced process to produce thermofertiliser obtained from potassium and phosphorous-bearing minerals is provided, where these elements may or may not be in citric acid or insoluble in water. The process also includes the use of specific additives, at the beginning of the process or immediately before the beginning of the thermal treatment step, in order to increase the potassium and phosphorous contents in the product and the overall efficiency of the process and also to promote the production of a high quality thermofertiliser.
    Type: Application
    Filed: October 29, 2010
    Publication date: September 29, 2011
    Applicant: VALE S.A.
    Inventors: Sebastião Ailton Rodrigues, Ruberlan Gomes Da Silva