Patents by Inventor Honghui TANG

Honghui TANG 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
  • Method for producing battery-grade nickel sulfate by using laterite nickel ore
    Patent number: 11952288
    Abstract: Disclosed is a method for producing battery-grade nickel sulfate by using laterite nickel ore comprising the following steps: sorting the laterite nickel ore to obtain lump ore and sediment ore; crushing the lump ore, and then performing heap leaching, to obtain a crude nickel sulfate solution A; separating the sediment ore to obtain high chromium ore, low iron, high magnesium ore, and high iron, low magnesium ore, and drying, roasting, reducing, and sulfurating the low iron, high magnesium ore to obtain low nickel matte; blowing and performing water extraction on the low nickel matte, and then performing oxygen pressure leaching, to obtain a crude nickel sulfate solution B; performing pressure leaching on the high iron, low magnesium ore to obtain a crude nickel sulfate solution C; and performing extraction on the crude nickel sulfate solutions A, B, and C, and then evaporating and crystallizing, to obtain battery-grade nickel sulfate.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: April 9, 2024
    Assignees: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD., HUNAN BRUNP VEHICLES RECYCLING CO., LTD., NINGDE BRUNP RECYCLING TECHNOLOGY CO., LTD.
    Inventors: Changdong Li, Honghui Tang, Chunyi Wang, Xinan Pei, Xingdui Li
  • METHOD FOR PURIFYING NICKEL-COBALT-MANGANESE LEACHING SOLUTION
    Publication number: 20230243017
    Abstract: Disclosed is a method for purifying a nickel-cobalt-manganese leaching solution.
    Type: Application
    Filed: August 3, 2021
    Publication date: August 3, 2023
    Inventors: Ran HE, Honghui TANG, Minjie YE, Dongren LYU, Bo LIU, Changdong LI
  • METHOD FOR PRODUCING BATTERY-GRADE NICKEL SULFATE BY USING LATERITE NICKEL ORE
    Publication number: 20230227326
    Abstract: Disclosed is a method for producing battery-grade nickel sulfate by using laterite nickel ore comprising the following steps: sorting the laterite nickel ore to obtain lump ore and sediment ore; crushing the lump ore, and then performing heap leaching, to obtain a crude nickel sulfate solution A; separating the sediment ore to obtain high chromium ore, low iron, high magnesium ore, and high iron, low magnesium ore, and drying, roasting, reducing, and sulfurating the low iron, high magnesium ore to obtain low nickel matte; blowing and performing water extraction on the low nickel matte, and then performing oxygen pressure leaching, to obtain a crude nickel sulfate solution B; performing pressure leaching on the high iron, low magnesium ore to obtain a crude nickel sulfate solution C; and performing extraction on the crude nickel sulfate solutions A, B, and C, and then evaporating and crystallizing, to obtain battery-grade nickel sulfate.
    Type: Application
    Filed: August 3, 2021
    Publication date: July 20, 2023
    Inventors: Changdong LI, Honghui TANG, Chunyi WANG, Xinan PEI, Xingdui LI