Title:
METHOD FOR PREPARING HIGH-NICKEL MATTE BY COMBINING TERNARY IRON-ALUMINUM SLAG WITH LATERITE-NICKEL ORE
Document Type and Number:
WIPO Patent Application WO/2024/037659
Kind Code:
A1
Abstract:
The present disclosure relates to a method for preparing high-nickel matte by combining ternary iron-aluminum slag with a laterite-nickel ore, and belongs to the technical field of nickel matte preparation. The method comprises the following steps: (1) drying, which involves: respectively drying ternary iron-aluminum slag and a laterite-nickel ore; (2) mixing, batching and granulating, which involves: uniformly mixing the dried ternary iron-aluminum slag, the laterite-nickel ore, a first flux and a reducing agent, and granulating the mixture to obtain mixed granules; (3) reduction vulcanization smelting, which involves: feeding the mixed granules obtained in step (2) into a side-blown furnace for reduction vulcanization smelting, so as to obtain low-nickel matte, smelting slag and a first flue gas; and (4) blowing, which involves: uniformly mixing the low-nickel matte obtained in step (3) with a second flux, and then feeding the mixture into the side-blown furnace for blowing, so as to obtain high-nickel matte, blowing slag and a second flue gas. The ternary iron-aluminum slag is used as a vulcanizing agent, such that while the nickel and cobalt in the ternary iron-aluminum slag are effectively recycled, the high-nickel matte with high nickel and cobalt grades and high nickel and cobalt direct yields is obtained.
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| WO/2023/084947 | VALUABLE ELEMENT RECOVERY MEHTOD |
Inventors:
MO YANNI (CN)
YUE XIONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
RUAN DINGSHAN (CN)
LI CHANGDONG (CN)
YUE XIONG (CN)
TANG SHIJIAN (CN)
LIU YUNTAO (CN)
RUAN DINGSHAN (CN)
LI CHANGDONG (CN)
Application Number:
PCT/CN2023/119430
Publication Date:
February 22, 2024
Filing Date:
September 18, 2023
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; C22B7/00; C22B7/04; C22B23/00
Foreign References:
| CN115386736A | 2022-11-25 | |||
| CN111996377A | 2020-11-27 | |||
| CN114317991A | 2022-04-12 | |||
| CN114350977A | 2022-04-15 | |||
| CN116083737A | 2023-05-09 | |||
| US20230002856A1 | 2023-01-05 |
Attorney, Agent or Firm:
GUANGZHOU JUNCY INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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