Patents by Inventor Dongren LIU

Dongren LIU 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 for purifying nickel-cobalt-manganese leaching solution
    Patent number: 11981976
    Abstract: Disclosed is a method for purifying a nickel-cobalt-manganese leaching solution.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: May 14, 2024
    Assignees: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD.
    Inventors: Ran He, Honghui Tang, Minjie Ye, Dongren Lyu, Bo Liu, Changdong Li
  • Deep-condensation VOCs recovery system using air as refrigerant
    Patent number: 11918950
    Abstract: A high-efficiency low-cost deep-condensation VOCs recovery system uses air as refrigerant. The recovery system includes a gaseous air purification system, an air liquefaction system and a VOCs recovery cold box. The gaseous air purification system includes an air filter, a cold dryer and an air purifier; the air liquefaction system comprises an air compressor, an air storage tank, a turbo-expander and an air precooler. The VOCs recovery cold box includes a VOCs precooler, a VOCs condenser and a gas-liquid separator.
    Type: Grant
    Filed: September 30, 2018
    Date of Patent: March 5, 2024
    Assignee: NANJING TECH UNIVERSITY
    Inventors: Xiang Ling, Dongren Liu
  • DEEP-CONDENSATION VOCS RECOVERY SYSTEM USING AIR AS REFRIGERANT
    Publication number: 20210260518
    Abstract: A high-efficiency low-cost deep-condensation VOCs recovery system uses air as refrigerant. The recovery system includes a gaseous air purification system, an air liquefaction system and a VOCs recovery cold box. The gaseous air purification system includes an air filter, a cold dryer and an air purifier; the air liquefaction system comprises an air compressor, an air storage tank, a turbo-expander and an air precooler. The VOCs recovery cold box includes a VOCs precooler, a VOCs condenser and a gas-liquid separator.
    Type: Application
    Filed: September 30, 2018
    Publication date: August 26, 2021
    Inventors: Xiang LING, Dongren LIU