Title:
METHOD FOR SEPARATING ARSENIC MINERAL FROM COPPER MATERIAL WITH HIGH ARSENIC CONTENT
Document Type and Number:
WIPO Patent Application WO/2011/096479
Kind Code:
A1
Abstract:
A method for separating arsenic mineral from a copper material having a high arsenic content, which comprises pulverizing the copper material containing arsenic, adding water thereto to form a slurry and then adding to the slurry a flotation agent, which comprises an inhibitor, a frothing agent and a collector, and bubbling air thereto to conduct flotation dressing, wherein a chelating agent such as a polyethyleneamine is used as the inhibitor. In the case of using triethylenetetramine as the chelating agent, in particular, it is preferred to add 1 to 10 equivalents of triethylenetetramine relative to the amount of soluble copper formed by the oxidation of the copper material. In this case, it is further preferred to adjust the slurry, before the flotation dressing, to pH 7 to 8 inclusive. Thus, arsenic mineral can be efficiently separated from a copper material containing arsenic, such as a copper ore or a refined copper ore, and a refined copper ore having a low arsenic content can be obtained.
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Inventors:
OKAMOTO Hideyuki (Sumitomo Metal Mining Co. LTD. 17-5, Isoura-ch, Niihama-shi Ehime 02, 〒7920002, JP)
岡本 秀征 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
TANAKA Yoshiyuki (Sumitomo Metal Mining Co. LTD. 17-5, Isoura-ch, Niihama-shi Ehime 02, 〒7920002, JP)
田中 善之 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
岡本 秀征 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
TANAKA Yoshiyuki (Sumitomo Metal Mining Co. LTD. 17-5, Isoura-ch, Niihama-shi Ehime 02, 〒7920002, JP)
田中 善之 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
Application Number:
JP2011/052251
Publication Date:
August 11, 2011
Filing Date:
February 03, 2011
Export Citation:
Assignee:
SUMITOMO METAL MINING CO., LTD. (11-3, Shimbashi 5-chome Minato-ku Tokyo, 16, 〒1058716, JP)
住友金属鉱山株式会社 (〒16 東京都港区新橋５丁目１１番３号 Tokyo, 〒1058716, JP)
Kyushu University, National University Corporation (6-10-1, Hakozaki Higashi-k, Fukuoka-shi Fukuoka 81, 〒8128581, JP)
国立大学法人九州大学 (〒81 福岡県福岡市東区箱崎６丁目１０番１号 Fukuoka, 〒8128581, JP)
OKAMOTO Hideyuki (Sumitomo Metal Mining Co. LTD. 17-5, Isoura-ch, Niihama-shi Ehime 02, 〒7920002, JP)
岡本 秀征 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
住友金属鉱山株式会社 (〒16 東京都港区新橋５丁目１１番３号 Tokyo, 〒1058716, JP)
Kyushu University, National University Corporation (6-10-1, Hakozaki Higashi-k, Fukuoka-shi Fukuoka 81, 〒8128581, JP)
国立大学法人九州大学 (〒81 福岡県福岡市東区箱崎６丁目１０番１号 Fukuoka, 〒8128581, JP)
OKAMOTO Hideyuki (Sumitomo Metal Mining Co. LTD. 17-5, Isoura-ch, Niihama-shi Ehime 02, 〒7920002, JP)
岡本 秀征 (〒02 愛媛県新居浜市磯浦町１７－５ 住友金属鉱山株式会社 新居浜研究所内 Ehime, 〒7920002, JP)
International Classes:
B03D1/001; B01F17/38; C09K3/00; C22B1/11; C22B15/00
Attorney, Agent or Firm:
TSUJIKAWA Michinori (Taishodo Bldg, 6F 14-16, Shiba 5-chom, Minato-ku Tokyo 14, 〒1080014, JP)
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Claims: