Title:
METHOD FOR TREATING LATERITE NICKEL ORE BY MEANS OF OXYGEN-ENRICHED SIDE BLOWING FURNACE
Document Type and Number:
WIPO Patent Application WO/2024/026998
Kind Code:
A1
Abstract:
A method for treating laterite nickel ore by means of an oxygen-enriched side blowing furnace, belonging to the technical field of smelting. The method comprises the following steps: reducing and sulphurizing in an oxygen-enriched side blowing furnace a furnace charge consisting of laterite nickel ore pellets, a sulphurizing agent 1, a reducing agent 1 and a flux 1 to obtain cobalt-poor low-nickel matte 1, smelting slag and flue gas; after the cobalt-poor low-nickel matte 1 is subjected to water quenching, adding a flux 2 therein to enter a blowing process so as to obtain cobalt-rich high-nickel matte, blowing slag and flue gas; and further subjecting the obtained smelting slag and blowing slag to dilution and separation by using a settling electric furnace, carrying out crushing, grinding, flotation and magnetic separation on the obtained electric furnace slag to acquire nickel-cobalt alloy, cobalt-rich low-nickel matte/cobalt-poor low-nickel matte and a nickel-cobalt concentrate, and subjecting same to a blowing process again. Valuable metals such as nickel and cobalt can be effectively enriched, and the latent heat of the smelting slag and the blowing slag is fully utilized, thus improving the utilization rate of the laterite nickel ore.
Inventors:
RUAN DINGSHAN (CN)
LI CHANGDONG (CN)
YUE XIONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
CHEN XULIN (CN)
LI CHANGDONG (CN)
YUE XIONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
CHEN XULIN (CN)
Application Number:
PCT/CN2022/121029
Publication Date:
February 08, 2024
Filing Date:
September 23, 2022
Export Citation:
Assignee:
GUANGDONG BRUNP RECYCLING TECHNOLOGY CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
HUNAN BRUNP RECYCLING TECH CO LTD (CN)
International Classes:
C22B23/02
Domestic Patent References:
| WO2009129653A1 | 2009-10-29 |
Foreign References:
| CN111218569A | 2020-06-02 | |||
| CN113957265A | 2022-01-21 | |||
| CN102735047A | 2012-10-17 | |||
| CN111996391A | 2020-11-27 | |||
| CN114854997A | 2022-08-05 | |||
| CN113528858A | 2021-10-22 | |||
| CN113502402A | 2021-10-15 | |||
| CN111705225A | 2020-09-25 | |||
| CN113265549A | 2021-08-17 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
Download PDF:
Previous Patent: DISCHARGE METHOD AND APPARATUS FOR WASTE TRACTION BATTERY
Next Patent: BRA HAVING VOLUME ADJUSTMENT FUNCTION
Next Patent: BRA HAVING VOLUME ADJUSTMENT FUNCTION