Title:
METHOD FOR SMELTING NICKEL OXIDE ORE
Document Type and Number:
Japanese Patent JP2023155718
Kind Code:
A
Abstract:
To provide a method having high productivity and efficiency and capable of producing high-quality ferronickel using a nickel oxide ore as a raw material.SOLUTION: There is a provided a smelting method for producing ferronickel by forming pellets from a nickel oxide ore as a raw material and reducing the pellets, which comprises: a mixing treatment step S1 of mixing a nickel oxide ore and a carbonaceous reducing agent; a mixture molding step S2 of molding the resulting mixture into pellets; and a reduction step S3 of heating the pellets at a predetermined reduction temperature, followed by subjecting to reduction treatment. In the reduction step S3, the reduction treatment is performed by maintaining a liquid phase ratio of the pellets at the reduction temperature in a range of 52 mass% or more and 65 mass% or less at a weight ratio.SELECTED DRAWING: Figure 1
Inventors:
IZEKI TAKASHI
NISHIHARA YASUTAKA
GOTO YUKO
NAITO HIROSHI
NISHIHARA YASUTAKA
GOTO YUKO
NAITO HIROSHI
Application Number:
JP2022065208A
Publication Date:
October 23, 2023
Filing Date:
April 11, 2022
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B23/02; C22B1/24; C22B5/10; C22C33/04
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi
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