Patents by Inventor Longqun MA

Longqun MA 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 using flotation collector containing azolethione structure
    Patent number: 10737280
    Abstract: The present invention relates to an azolethione flotation collector and application thereof. According to the application, an azolethione compound such as a 1,3,4-thiadiazole-2-thione compound, a 1,3,4-oxadiazole-2-thione compound, a 1,2,4-triazole-3-thione compound or a 1,2,4,5-tetrazole-3-thione compound is used as a mineral flotation collector to be applied to ores containing copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals to realize flotation recovery of valuable metal minerals. Compared with common flotation collectors in the existing technologies, the flotation collector of the present invention can effectively improve enrichment and recovery of copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: August 11, 2020
    Assignee: CENTRAL SOUTH UNIVERSITY
    Inventors: Guangyi Liu, Yaoguo Huang, Longqun Ma, Xiaoxue Niu, Jun Liu, Hong Zhong, Zhe Hu
  • METHOD OF USING FLOTATION COLLECTOR CONTAINING AZOLETHIONE STRUCTURE
    Publication number: 20190217310
    Abstract: The present invention relates to an azolethione flotation collector and application thereof. According to the application, an azolethione compound such as a 1,3,4-thiadiazole-2-thione compound, a 1,3,4-oxadiazole-2-thione compound, a 1,2,4-triazole-3-thione compound or a 1,2,4,5-tetrazole-3-thione compound is used as a mineral flotation collector to be applied to ores containing copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals to realize flotation recovery of valuable metal minerals. Compared with common flotation collectors in the existing technologies, the flotation collector of the present invention can effectively improve enrichment and recovery of copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals.
    Type: Application
    Filed: March 21, 2019
    Publication date: July 18, 2019
    Applicant: CENTRAL SOUTH UNIVERSITY
    Inventors: Guangyi LIU, Yaoguo HUANG, Longqun MA, Xiaoxue NIU, Jun LIU, Hong ZHONG, Zhe HU