Method for smelting oxide ore

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United States of America Patent

PATENT NO 11479832
APP PUB NO 20190144971A1
SERIAL NO

16093339

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Abstract

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Provided is a smelting method for producing metal by reducing a mixture that includes an oxide ore such as nickel oxide ore, wherein it is possible to improve productivity by raising the metal recovery rate as well as to inexpensively and efficiently produce high-quality metal. The present invention is a smelting method in which: an oxide ore and a carbonaceous reducing agent are mixed; the resulting mixture is heated and subjected to a reduction treatment; and metal and slag, which are reduction products, are obtained, wherein the reduction treatment is carried out in a state in which one or more surface deposits selected from carbonaceous reducing agents, metal oxides, and oxidation inhibitors are deposited on the surface of the mixture.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO METAL MINING CO LTD11-3 SHIMBASHI 5-CHOME MINATO-KU TOKYO 1058716 JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goda, Yukihiro Niihama, JP 7 2
Iseki, Takashi Niihama, JP 29 575
Kobayashi, Jun-ichi Niihama, JP 7 17
Okada, Shuji Niihama, JP 19 74

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