Patents by Inventor Grace M. NISOLA

Grace M. NISOLA 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).

  • Lithium-selective crown ether, lithium adsorbent using same, and preparation method thereof
    Patent number: 9850226
    Abstract: Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: December 26, 2017
    Assignee: MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERTAION FOUNDATION
    Inventors: Wook-Jin Chung, Lawrence A. Limjuco, Grace M. Nisola, Rey Eliseo C. Torrejos, Eleazer L. Vivas, Hern Kim, Myoung Jun Park, Jeong Gil Seo, Seong-Poong Lee
  • Composite nanofiber membrane for adsorbing lithium, method of manufacturing the same and apparatus and method for recovering lithium using the same
    Patent number: 9745644
    Abstract: Disclosed are a composite nanofiber membrane for the adsorption of lithium, a method for preparing the same, and a lithium recovery apparatus and method using the same. The composite nanofiber membrane for the adsorption of lithium is immobilized with manganese oxide selectively adsorptive of lithium. The composite nanofiber membrane for lithium adsorption exhibits high selectivity for lithium ions and allows for the rapid and easy diffusion of lithium ions through interstitial spaces of the adsorbent. Particularly, the lithium recovery apparatus using the composite nanofiber membrane for lithium adsorption is able to effectively adsorb lithium ions dissolved in seawater in a selective manner within a short period of time, thus reducing the time taken for the adsorption process.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: August 29, 2017
    Assignee: MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION
    Inventors: Wook-Jin Chung, Myoung Jun Park, Grace M. Nisola, Arnel B. Beltran, Rey Eliseo C. Torrejos, Jeong Gil Seo, Seong-Poong Lee, Young Deuk Yoo
  • LITHIUM SELECTIVE CROWN ETHER,LITHIUM ADSORBENT USING SAME, AND PREPARATION METHOD THEREOF.
    Publication number: 20160280678
    Abstract: Disclosed herein are a novel crown ether with bulky and rigid groups and a method for preparing the same. Also provided are a lithium adsorbent comprising the novel crown ether immobilized onto a nanofiber, and a method for preparing the same. The lithium-selective crown ether is synthesized through intermolecular cyclization between a bulky epoxide and a rigid aromatic compound such as 1,2-dihydroxybenzene, and can effectively recover lithium ions. For use as a lithium adsorbent, the novel crown ether with both bulky and rigid subunits is immobilized onto a polymer nanofiber. The crown ether-immobilized polymer nanofibers may be formed into a recyclable membrane.
    Type: Application
    Filed: April 30, 2015
    Publication date: September 29, 2016
    Applicant: MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION
    Inventors: Wook-Jin CHUNG, Lawrence A. LIMJUCO, Grace M. NISOLA, Rey Eliseo C. TORREJOS, Eleazer L. VIVAS, Hern KIM, Myoung Jun PARK, Jeong Gil SEO, Seong-Poong LEE
  • COMPOSITE NANOFIBER MEMBRANE FOR ADSORBING LITHIUM, METHOD OF MANUFACTURING THE SAME AND APPARATUS AND METHOD FOR RECOVERING LITHIUM USING THE SAME
    Publication number: 20150258501
    Abstract: Disclosed are a composite nanofiber membrane for the adsorption of lithium, a method for preparing the same, and a lithium recovery apparatus and method using the same. The composite nanofiber membrane for the adsorption of lithium is immobilized with manganese oxide selectively adsorptive of lithium. The composite nanofiber membrane for lithium adsorption exhibits high selectivity for lithium ions and allows for the rapid and easy diffusion of lithium ions through interstitial spaces of the adsorbent. Particularly, the lithium recovery apparatus using the composite nanofiber membrane for lithium adsorption is able to effectively adsorb lithium ions dissolved in seawater in a selective manner within a short period of time, thus reducing the time taken for the adsorption process.
    Type: Application
    Filed: January 15, 2015
    Publication date: September 17, 2015
    Applicant: MYONGJI UNIVERSITY INDUSTRY AND ACADEMIA COOPERATION FOUNDATION
    Inventors: Wook-Jin CHUNG, Myoung Jun PARK, Grace M. NISOLA, Arnel B. BELTRAN, Rey Eliseo C. TORREJOS, Jeong Gil SEO, Seong-Poong LEE, Young Deuk YOO