Title:
SMELTING METHOD OF NICKEL OXIDE ORE
Document Type and Number:
Japanese Patent JP2023084633
Kind Code:
A
Abstract:
To provide a smelting method for manufacturing ferronickel by reducing a mixture containing nickel oxide ore that can suppress quality degradation of a resultant reduced product and manufacture ferronickel through efficient operations.SOLUTION: A smelting method for manufacturing ferronickel by reducing a mixture containing nickel oxide ore and a carbonaceous reducer includes a step for mixing the nickel oxide ore and the carbonaceous reducer and a step for loading the mixture into a reduction furnace and reducing the mixture by heating. In the reduction step, the reduction furnace 1 is equipped with a heat treatment unit 11 for reduction treatment and a coal-loading unit 21 connected to the heat treatment unit 11. At the halfway stage of the reduction treatment, the mixture is transferred from the heat treatment unit 11 to the coal-loading unit 21 and supplied with the carbonaceous reducer in addition in the coal-loading unit 21 and the mixture supplied with the carbonaceous reducer is then transferred to the heat treatment unit 11 for additional reduction treatment.SELECTED DRAWING: Figure 3
Inventors:
IZEKI TAKASHI
TAN TOSHIRO
YAMAUCHI IPPEI
TAN TOSHIRO
YAMAUCHI IPPEI
Application Number:
JP2022001491A
Publication Date:
June 19, 2023
Filing Date:
January 07, 2022
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B23/02; C22B5/10; C22C33/04
Attorney, Agent or Firm:
Masayuki Shobayashi
Kazuyoshi Hayashi
Kazuyoshi Hayashi