Patents by Inventor Jeya Kumari

Jeya Kumari 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: 10081847
    Abstract: The invention provides a method for the production of a metal, the method comprising the steps of mixing an oxide of the metal with a reducing agent comprising a Group II metal or a hydride thereof in the presence of water and/or an organic solvent, heating the mixture of oxide and reducing agent, leaching the resulting material with water; and washing the leached material with a dilute aqueous acid. Typically, the metal is a transition or rare earth metal, the oxide of the metal is an oxide of a transition or rare earth metal, and the reducing agent is selected from calcium or magnesium or the hydrides of calcium and magnesium. The metal is generally obtained at a purity of around 98.5-99.1%, and the method is much quicker than the methods of the prior art and has a much lower carbon footprint, thereby providing an option which is more sustainable, environmentally friendly, and accommodative for industries.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: September 25, 2018
    Assignee: UNIVERSITY OF BRADFORD
    Inventors: Jeya Kumari, Raj Patel
  • Publication number: 20150292057
    Abstract: The invention provides a method for the production of a metal, the method comprising the steps of mixing an oxide of the metal with a reducing agent comprising a Group II metal or a hydride thereof in the presence of water and/or an organic solvent, heating the mixture of oxide and reducing agent, leaching the resulting material with water; and washing the leached material with a dilute aqueous acid. Typically, the metal is a transition or rare earth metal, the oxide of the metal is an oxide of a transition or rare earth metal, and the reducing agent is selected from calcium or magnesium or the hydrides of calcium and magnesium. The metal is generally obtained at a purity of around 98.5-99.1%, and the method is much quicker than the methods of the prior art and has a much lower carbon footprint, thereby providing an option which is more sustainable, environmentally friendly, and accommodative for industries.
    Type: Application
    Filed: October 17, 2013
    Publication date: October 15, 2015
    Inventors: Jeya Kumari, Raj Patel
  • Patent number: 7494631
    Abstract: This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium, sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: February 24, 2009
    Assignee: Millennium Inorganic Chemicals
    Inventors: Animesh Jha, Ephraim Jeya Kumari, Abhishek Lahiri
  • Publication number: 20080241026
    Abstract: This invention relates to a process for beneficiating a titaniferous ore. The process comprises calcining the titaniferous ore, at least one alkali or alkaline earth metal salt, and at least one alumina-containing material in the presence of oxygen to form a calcined ore mixture, then leaching the calcined ore mixture with a solution comprising ammonium, sodium or magnesium chloride in the presence of oxygen to form a leached ore mixture, and contacting the leached ore with an acid to form a beneficiated ore.
    Type: Application
    Filed: March 26, 2007
    Publication date: October 2, 2008
    Inventors: Animesh Jha, Ephraim Jeya Kumari, Abhishek Lahiri