抄録
During the process for the bioleaching of sulfides, the surface of the target mineral is sometimes covered with intermediates, and the final products that interfere with the extraction of the target metal. Understanding the characterization and formation order of the secondary minerals responsible for passivation is a key to resolving the passivation mechanism. The present article reviews identification of secondary minerals and intermediates in a process of bioleaching of several sulfides by X-ray photoelectron spectroscopy, Raman spectroscopy, identification of the jarosite group minerals using Raman spectroscopy, and expectation of the formation order of the secondary minerals by SEM-EDX and TEM. The TEM observation in a nano-domain provides useful information about amorphous the secondary minerals. A passivation model was proposed to keep maximizing Cu recovery and minimizing As solubilization for the bioleaching of arsenic-bearing copper sulfides using super-thermophilic archaea, which are expected to be new target minerals in the near future.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 911-919 |
| ページ数 | 9 |
| ジャーナル | bunseki kagaku |
| 巻 | 60 |
| 発行部数 | 12 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2011 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Analytical Chemistry
これを引用
Characterization of passivation layers in bioleaching of sulfides. / Sasaki, Keiko.
：: bunseki kagaku, 巻 60, 番号 12, 01.01.2011, p. 911-919.研究成果: ジャーナルへの寄稿 › 評論記事
}
TY - JOUR
T1 - Characterization of passivation layers in bioleaching of sulfides
AU - Sasaki, Keiko
PY - 2011/1/1
Y1 - 2011/1/1
N2 - During the process for the bioleaching of sulfides, the surface of the target mineral is sometimes covered with intermediates, and the final products that interfere with the extraction of the target metal. Understanding the characterization and formation order of the secondary minerals responsible for passivation is a key to resolving the passivation mechanism. The present article reviews identification of secondary minerals and intermediates in a process of bioleaching of several sulfides by X-ray photoelectron spectroscopy, Raman spectroscopy, identification of the jarosite group minerals using Raman spectroscopy, and expectation of the formation order of the secondary minerals by SEM-EDX and TEM. The TEM observation in a nano-domain provides useful information about amorphous the secondary minerals. A passivation model was proposed to keep maximizing Cu recovery and minimizing As solubilization for the bioleaching of arsenic-bearing copper sulfides using super-thermophilic archaea, which are expected to be new target minerals in the near future.
AB - During the process for the bioleaching of sulfides, the surface of the target mineral is sometimes covered with intermediates, and the final products that interfere with the extraction of the target metal. Understanding the characterization and formation order of the secondary minerals responsible for passivation is a key to resolving the passivation mechanism. The present article reviews identification of secondary minerals and intermediates in a process of bioleaching of several sulfides by X-ray photoelectron spectroscopy, Raman spectroscopy, identification of the jarosite group minerals using Raman spectroscopy, and expectation of the formation order of the secondary minerals by SEM-EDX and TEM. The TEM observation in a nano-domain provides useful information about amorphous the secondary minerals. A passivation model was proposed to keep maximizing Cu recovery and minimizing As solubilization for the bioleaching of arsenic-bearing copper sulfides using super-thermophilic archaea, which are expected to be new target minerals in the near future.
UR - http://www.scopus.com/inward/record.url?scp=84855272884&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84855272884&partnerID=8YFLogxK
U2 - 10.2116/bunsekikagaku.60.911
DO - 10.2116/bunsekikagaku.60.911
M3 - Review article
VL - 60
SP - 911
EP - 919
JO - Bunseki Kagaku
JF - Bunseki Kagaku
SN - 0525-1931
IS - 12
ER -