Patents by Inventor Marie Ysabel R. Abella

Marie Ysabel R. Abella 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).

  • Composite extractant-enhanced polymer resin, method of making the same, and its usage for extraction of valuable metal(s)
    Patent number: 10933410
    Abstract: A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, from an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of rare earth metals from acid-leaching slurries or solutions.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: March 2, 2021
    Assignee: II-VI Delaware, Inc.
    Inventors: Wen-Qing Xu, Vincent D. Mattera, Jr., Marie Ysabel R. Abella, Gomer M. Abrenica, Shailesh Patkar
  • Selective recovery of rare earth metals from an acidic slurry or acidic solution
    Patent number: 10808296
    Abstract: A method for extracting rare earth metals from an acidic slurry or an acidic solution. The method includes providing an acidic slurry or acidic solution; adding a composite comprising an extractant and a polymer resin; mixing the composite with the acidic slurry or acidic solution to form a mixture slurry or solution; and separating the mixture slurry or solution into a rare-earth-metal-loaded composite and a raffinate slurry or solution. The acidic slurry or acidic solution comprises at least one rare earth metal and at least one early transition metal and/or at least one actinide metal.
    Type: Grant
    Filed: November 12, 2018
    Date of Patent: October 20, 2020
    Assignee: II-VI Delaware, Inc.
    Inventors: Wen-Qing Xu, Marie Ysabel R. Abella, Gomer M. Abrenica, Louie I. Bedes, Vincent D. Mattera, Shailesh Patkar
  • Selective Recovery of Rare Earth Metals From an Acidic Slurry or Acidic Solution
    Publication number: 20190078175
    Abstract: A method for extracting rare earth metals from an acidic slurry or an acidic solution. The method includes providing an acidic slurry or acidic solution; adding a composite comprising an extractant and a polymer resin; mixing the composite with the acidic slurry or acidic solution to form a mixture slurry or solution; and separating the mixture slurry or solution into a rare-earth-metal-loaded composite and a raffinate slurry or solution. The acidic slurry or acidic solution comprises at least one rare earth metal and at least one early transition metal and/or at least one actinide metal.
    Type: Application
    Filed: November 12, 2018
    Publication date: March 14, 2019
    Inventors: Wen-Qing Xu, Marie Ysabel R. Abella, Gomer M. Abrenica, Louie I. Bedes, Vincent D. Mattera, Shailesh Patkar
  • Composite Extractant-Enhanced Polymer Resin, Method of Making the Same, and Its Usage for Extraction of Valuable Metal(s)
    Publication number: 20190054457
    Abstract: A composite extractant-enhanced polymer resin comprising an extractant and a polymer resin for direct extraction of valuable metals such as rare earth metals, and more specifically, scandium, from an acid-leaching slurry and/or acid-leaching solution in which ferric ions are not required to be reduced into ferrous ions. The extractant may be cationic, non-ionic, or anionic. More specifically, the extractant di(2-ethylhexyl)phosphoric acid may be used. The polymer resin may be non-functional or have functional groups of sulfonic acid, carboxylic acid, iminodiacetic acid, phosphoric acid, or amines. The composite extractant-enhanced polymer resin may be used for extraction of rare earth metals from acid-leaching slurries or solutions.
    Type: Application
    Filed: October 25, 2016
    Publication date: February 21, 2019
    Inventors: Wen-Qing Xu, Vincent D. Mattera, Jr., Marie Ysabel R. Abella, Gomer M. Abrenica, Shailesh Patkar