Abstract
The mineral surface characteristic is important for the flotation because it affects the flotation behavior of the mineral. Conventionally, in the flotation process for Cu sulphide ores, the degree of ore floatabilities varies depending on the mineral phase such as chalcopyrite, bornite, or chalcocite. Therefore, mineral surfaces are treated with activators and depressants to control the floatability of target minerals and obtain high recovery performance. There are lots of flotation reagents which have many effects on ores depending on ore characteristics and conditioning methods. For example, sodium hydrosulphide (NaHS) as activator is known to have the effect of re-sulfurizing and activating oxidized surface of chalcocite and bornite. On the other hand, NaHS is reported to depress chalcopyrite floatability. In this study, the evaluation of mineral surfaces was conducted to predict flotation behavior. Activation of Cu minerals (chalcocite, bornite, and chalcopyrite) by NaHS was experimented. The three Cu minerals were treated in two steps. Firstly, they were oxidized in the drying oven. Secondly, they were treated with NaHS solution. After each treatment step, each mineral was measured by contact angle apparatus then analyzed by X-ray photoelectron spectroscopy (XPS). The results of surface characteristics after oxidation and NaHS treatment were utilized to accomplish the study's objective.
| Original language | English |
|---|---|
| Title of host publication | IMPC 2018 - 29th International Mineral Processing Congress |
| Publisher | Canadian Institute of Mining, Metallurgy and Petroleum |
| Pages | 1481-1488 |
| Number of pages | 8 |
| ISBN (Electronic) | 9787030227119 |
| Publication status | Published - 2019 Jan 1 |
| Event | 29th International Mineral Processing Congress, IMPC 2018 - Moscow, Russian Federation Duration: 2018 Sep 17 → 2018 Sep 21 |
Other
| Other | 29th International Mineral Processing Congress, IMPC 2018 |
|---|---|
| Country | Russian Federation |
| City | Moscow |
| Period | 18/9/17 → 18/9/21 |
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Keywords
- Bornite
- Chalcocite
- Chalcopyrite
- Contact angle
- Floatability
- Mineral surface
- NaHS
- XPS
ASJC Scopus subject areas
- Mechanical Engineering
- Earth-Surface Processes
- Geochemistry and Petrology
- Geotechnical Engineering and Engineering Geology
Cite this
Applying analysis of mineral surfaces to predict flotation behavior. / Matsuoka, H.; Kawarabuki, R.; Mitsuhashi, K.; Kawata, M.; Tokoro, Chiharu; Haga, K.; Shibayama, A.
IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, 2019. p. 1481-1488.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Applying analysis of mineral surfaces to predict flotation behavior
AU - Matsuoka, H.
AU - Kawarabuki, R.
AU - Mitsuhashi, K.
AU - Kawata, M.
AU - Tokoro, Chiharu
AU - Haga, K.
AU - Shibayama, A.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - The mineral surface characteristic is important for the flotation because it affects the flotation behavior of the mineral. Conventionally, in the flotation process for Cu sulphide ores, the degree of ore floatabilities varies depending on the mineral phase such as chalcopyrite, bornite, or chalcocite. Therefore, mineral surfaces are treated with activators and depressants to control the floatability of target minerals and obtain high recovery performance. There are lots of flotation reagents which have many effects on ores depending on ore characteristics and conditioning methods. For example, sodium hydrosulphide (NaHS) as activator is known to have the effect of re-sulfurizing and activating oxidized surface of chalcocite and bornite. On the other hand, NaHS is reported to depress chalcopyrite floatability. In this study, the evaluation of mineral surfaces was conducted to predict flotation behavior. Activation of Cu minerals (chalcocite, bornite, and chalcopyrite) by NaHS was experimented. The three Cu minerals were treated in two steps. Firstly, they were oxidized in the drying oven. Secondly, they were treated with NaHS solution. After each treatment step, each mineral was measured by contact angle apparatus then analyzed by X-ray photoelectron spectroscopy (XPS). The results of surface characteristics after oxidation and NaHS treatment were utilized to accomplish the study's objective.
AB - The mineral surface characteristic is important for the flotation because it affects the flotation behavior of the mineral. Conventionally, in the flotation process for Cu sulphide ores, the degree of ore floatabilities varies depending on the mineral phase such as chalcopyrite, bornite, or chalcocite. Therefore, mineral surfaces are treated with activators and depressants to control the floatability of target minerals and obtain high recovery performance. There are lots of flotation reagents which have many effects on ores depending on ore characteristics and conditioning methods. For example, sodium hydrosulphide (NaHS) as activator is known to have the effect of re-sulfurizing and activating oxidized surface of chalcocite and bornite. On the other hand, NaHS is reported to depress chalcopyrite floatability. In this study, the evaluation of mineral surfaces was conducted to predict flotation behavior. Activation of Cu minerals (chalcocite, bornite, and chalcopyrite) by NaHS was experimented. The three Cu minerals were treated in two steps. Firstly, they were oxidized in the drying oven. Secondly, they were treated with NaHS solution. After each treatment step, each mineral was measured by contact angle apparatus then analyzed by X-ray photoelectron spectroscopy (XPS). The results of surface characteristics after oxidation and NaHS treatment were utilized to accomplish the study's objective.
KW - Bornite
KW - Chalcocite
KW - Chalcopyrite
KW - Contact angle
KW - Floatability
KW - Mineral surface
KW - NaHS
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=85059439368&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85059439368&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85059439368
SP - 1481
EP - 1488
BT - IMPC 2018 - 29th International Mineral Processing Congress
PB - Canadian Institute of Mining, Metallurgy and Petroleum
ER -