Patents by Inventor Maria Beatriz Harmendani VIEIRA

Maria Beatriz Harmendani VIEIRA 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).

  • Aging (weathering) inhibition method of iron ore pellets during stockpiling
    Patent number: 9631253
    Abstract: The present invention refers to an effective method for minimizing the problems of iron ore pellet degradation by weathering during their stockpiling, i.e., by providing an appropriate method for improving the state of the art with regard to iron ore pellet resistance related just to the hydration process of the slag phase. Thus, in order to minimize hydration in the slag phase, stabilizers are introduced into the mixture used to produce iron ore pellets prior to being heat-treated.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: April 25, 2017
    Assignee: VALE S.A.
    Inventors: Maria Beatriz Harmendani Vieira, Marcus Eduardo Emrich Botelho
  • AGING (WEATHERING) INHIBITION METHOD OF IRON ORE PELLETS DURING STOCKPILING
    Publication number: 20150197825
    Abstract: The present invention refers to an effective method for minimizing the problems of iron ore pellet degradation by weathering during their stockpiling, i.e., by providing an appropriate method for improving the state of the art with regard to iron ore pellet resistance related just to the hydration process of the slag phase. Thus, in order to minimize hydration in the slag phase, stabilizers are introduced into the mixture used to produce iron ore pellets prior to being heat-treated.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 16, 2015
    Inventors: Maria Beatriz Harmendani VIEIRA, Marcus Eduardo Emrich BOTELHO