Title:
METHOD FOR SMELTING OXIDE ORE
Document Type and Number:
WIPO Patent Application WO/2020/059630
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a method for smelting oxide ore, the method being capable of efficiently producing high quality metal. The present invention pertains to a smelting method for producing a metal such as ferronickel as a reduced product by reducing a mixture of a carbonaceous reducing agent and an oxide ore such as nickel oxide ore, the method comprising a reduction step in which the mixture is charged into a reduction furnace and the oxide ore is reduced by heating the mixture with a burner to obtain molten metal and slag. In the reduction step, the molten metal and the slag generated by reducing the oxide ore are separated by gravity separation. In the reduction step, it is preferable to heat the mixture such that the temperatures of the metal and the slag obtained in the reduction furnace are each in the range of 1300-1700˚C.
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Inventors:
ISEKI TAKASHI (JP)
Application Number:
PCT/JP2019/035891
Publication Date:
March 26, 2020
Filing Date:
September 12, 2019
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
C22B23/02; C21B13/00; C22B5/10; C22C33/04
Foreign References:
| JPS50136203A | 1975-10-29 | |||
| JPH10102118A | 1998-04-21 | |||
| JPS6462438A | 1989-03-08 | |||
| JP2011256414A | 2011-12-22 |
Other References:
See also references of EP 3854894A4
Attorney, Agent or Firm:
SHOBAYASHI Masayuki et al. (JP)
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