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Patent Searching and Data


Title:
ORE DRESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/008962
Kind Code:
A1
Abstract:
Provided is an ore dressing method capable of efficiently separating copper ore from molybdenum ore. The ore dressing method is provided with: a conditioning step for adding a sulfite as a surface treatment agent to an ore slurry comprising copper ore and molybdenum ore; and after the conditioning step, an ore flotation step for performing ore flotation using the ore slurry. By selectively increasing the hydrophilicity of the copper ore with the sulfite, it is possible to impart a difference in hydrophilicity between the copper ore and the molybdenum ore. As a result, it is possible to selectively cause the molybdenum ore to float and to separate the copper ore from the molybdenum ore efficiently.

Inventors:
HIRAJIMA Tsuyoshi (NATIONAL UNIVERSITY CORPORATION 6-10-1, Hakozaki, Higashi-ku, Fukuoka-sh, Fukuoka 81, 〒8128581, JP)
MIKI Hajime (NATIONAL UNIVERSITY CORPORATION 6-10-1, Hakozaki, Higashi-ku, Fukuoka-sh, Fukuoka 81, 〒8128581, JP)
Gde Pandhe Wisnu Suyantara (NATIONAL UNIVERSITY CORPORATION 6-10-1, Hakozaki, Higashi-ku, Fukuoka-sh, Fukuoka 81, 〒8128581, JP)
IMAIZUMI Yuji (SUMITOMO METAL MINING CO. LTD., 17-5, Isoura-cho, Niihama-sh, Ehime 02, 〒7920002, JP)
AOKI Yuji (SUMITOMO METAL MINING CO. LTD., 17-5, Isoura-cho, Niihama-sh, Ehime 02, 〒7920002, JP)
TAKIDA Eri (SUMITOMO METAL MINING CO. LTD., 17-5, Isoura-cho, Niihama-sh, Ehime 02, 〒7920002, JP)
Application Number:
JP2018/021115
Publication Date:
January 10, 2019
Filing Date:
June 01, 2018
Export Citation:
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Assignee:
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION (744 Motooka, Nishi-ku Fukuoka-shi Fukuoka, 95, 〒8190395, JP)
SUMITOMO METAL MINING CO., LTD. (11-3, Shimbashi 5-Chome Minato-k, Tokyo 16, 〒1058716, JP)
International Classes:
C22B1/00; B03D1/002; C22B15/00; C22B34/34; B03D101/00; B03D103/02
Domestic Patent References:
WO2017110462A12017-06-29
Foreign References:
US4549959A1985-10-29
JP2010229542A2010-10-14
JP2017095763A2017-06-01
Other References:
RAO, G. V. ET AL.: "COLUMN FLOTATION TO RECOVER MOLYBDENITE FROM RAKHA COPPER CONCENTRATE PART I : CONVENTIONAL ROUGHER FLOTATION OF MOLYBDENITE WITH SODIUM HYDROGEN SULPHIDE", TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, vol. 51, no. 6, 1998, pages 473 - 478, ISSN: 0972-2815
Attorney, Agent or Firm:
YAMAUCHI PATENT ATTORNEYS (Nihon Seimei-Takamatsu-Ekimae Bldg. 3F, 1-1-8 Kotobuki-cho, Takamatsu-sh, Kagawa 23, 〒7600023, JP)
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