Patents by Inventor HWEY-LIN SHEU

HWEY-LIN SHEU 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).

  • Method of rapid treatment of heavy metal sludge and preparation of ferrite magnets
    Patent number: 11524904
    Abstract: A method of rapid treatment of heavy metal sludge and preparation of ferrite magnets comprises following steps of: providing a sludge, the sludge at least having zinc metal and ferrous metal; adding an iron-containing substance to the sludge; pickling the sludge and the iron-containing substance with sulfuric acid to obtain a pickling solution with zinc ions and iron ions; neutralizing the pickling solution with sodium hydroxide to form hydroxide precipitates; and airing and heating the neutralized pickling solution by an ultrasonic-microwave method so that the hydroxide precipitates undergoing a ferrite magnet reaction, thereby obtaining ferrite magnets with a spathic structure.
    Type: Grant
    Filed: May 6, 2021
    Date of Patent: December 13, 2022
    Inventors: Ming-Chien Hsiao, Po-Han Hsiao, Hwey-Lin Sheu, Vu Nguyen (Hcmute) Lan, Anna Anderson
  • METHOD OF RAPID TREATMENT OF HEAVY METAL SLUDGE AND PREPARATION OF FERRITE MAGNETS
    Publication number: 20210354996
    Abstract: A method of rapid treatment of heavy metal sludge and preparation of ferrite magnets comprises following steps of: providing a sludge, the sludge at least having zinc metal and ferrous metal; adding an iron-containing substance to the sludge; pickling the sludge and the iron-containing substance with sulfuric acid to obtain a pickling solution with zinc ions and iron ions; neutralizing the pickling solution with sodium hydroxide to form hydroxide precipitates; and airing and heating the neutralized pickling solution by an ultrasonic-microwave method so that the hydroxide precipitates undergoing a ferrite magnet reaction, thereby obtaining ferrite magnets with a spathic structure.
    Type: Application
    Filed: May 6, 2021
    Publication date: November 18, 2021
    Applicant: KUN SHAN UNIVERSITY
    Inventors: MING-CHIEN HSIAO, PO-HAN HSIAO, HWEY-LIN SHEU, VU NGUYEN (HCMUTE) LAN, ANNA ANDERSON