Flotation Separation of Chalcopyrite and Molybdenite Assisted by Microencapsulation Using Ferrous and Phosphate Ions: Part II. Flotation

Park, Ilhwan; Hong, Seunggwan; Jeon, Sanghee; Ito, Mayumi; Hiroyoshi, Naoki

Flotation Separation of Chalcopyrite and Molybdenite Assisted by Microencapsulation Using Ferrous and Phosphate Ions: Part II. Flotation

Park, Ilhwan; Hong, Seunggwan; Jeon, Sanghee et al.

Metals, 2021, 11(3), 439

Permalink : https://hdl.handle.net/2115/81269

このアイテムのアクセス数:529件（2026-08-14 00:16 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
https://doi.org/10.3390/met11030439			11

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/81269
タイトル	Flotation Separation of Chalcopyrite and Molybdenite Assisted by Microencapsulation Using Ferrous and Phosphate Ions: Part II. Flotation
著者	Park, Ilhwan ; Hong, Seunggwan ; Jeon, Sanghee ; Ito, Mayumi ; Hiroyoshi, Naoki
e-Rad_Researcher 80844753 著者名 Park, Ilhwan
著者名 Hong, Seunggwan
e-Rad_Researcher 20847701 著者名 Jeon, Sanghee
e-Rad_Researcher 10339690 著者名 Ito, Mayumi
e-Rad_Researcher 50250486 著者名 Hiroyoshi, Naoki
言語	英語
キーワード	porphyry deposits
	chalcopyrite
	molybdenite
	microencapsulation
	flotation
発行日	2021-03
出版者	MDPI
収録物名	Metals
巻(号)	11(3)
ページ	439
抄録	Porphyry-type deposits are the major sources of copper and molybdenum, and flotation has been adopted to recover them separately. The conventional reagents used for depressing copper minerals, such as NaHS, Na2S, and Nokes reagent, have the potential to emit toxic H2S gas when pulp pH was not properly controlled. Thus, in this study the applicability of microencapsulation (ME) using ferrous and phosphate ions as an alternative process to depress the floatability of chalcopyrite was investigated. During ME treatment, the use of high concentrations of ferrous and phosphate ions together with air introduction increased the amount of FePO4 coating formed on the chalcopyrite surface, which was proportional to the degree of depression of its floatability. Although ME treatment also reduced the floatability of molybdenite, similar to 92% Mo could be recovered by utilizing emulsified kerosene. Flotation of chalcopyrite/molybdenite mixture confirmed that the separation efficiency was greatly improved from 10.9% to 66.8% by employing ME treatment as a conditioning process for Cu-Mo flotation separation.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution 4.0 International
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.3390/met11030439