CONFIRMATION OF A SULFUR-RICH LAYER ON PYRITE AFTER OXIDATIVE DISSOLUTION BY FE(III) IONS AROUND PH-2

被引：105

作者：

SASAKI, K ^{[1
]}

TSUNEKAWA, M ^{[1
]}

OHTSUKA, T ^{[1
]}

KONNO, H ^{[1
]}

机构：

[1] NAGOYA INST TECHNOL,DEPT APPL CHEM,NAGOYA,AICHI 466,JAPAN

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 1995年 / 59卷 / 15期

关键词：

D O I：

10.1016/0016-7037(95)00203-C

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The stoichiometry of pyrite dissolution by Fe(III) ions was studied in chloride media around pH 2. Pyrite was found to dissolve nonstoichiometrically during the initial tens of hours and a S-rich layer was formed on the pyrite due to preferential dissolution of iron. The major constituent of the layer was elemental S, identified by X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy.

引用

页码：3155 / 3158

页数：4

共 26 条

[1] STUDY BY PHOTOELECTRON-SPECTROSCOPY OF SURFACE DEGRADATION OF FES2, CUFES2 ZNS AND PBS EXPOSED TO AIR AND WATER [J].

BRION, D .

APPLICATIONS OF SURFACE SCIENCE, 1980, 5 (02) :133-152

[2] CORE ELECTRON-BINDING ENERGIES OF PLATINUM AND RHODIUM POLYSULFIDES [J].

BUCKLEY, AN ;

WOUTERLOOD, HJ ;

CARTWRIGHT, PS ;

GILLARD, RD .

INORGANICA CHIMICA ACTA, 1988, 143 (01) :77-80

[3] THE SURFACE OXIDATION OF PYRITE [J].

BUCKLEY, AN ;

WOODS, R .

APPLIED SURFACE SCIENCE, 1987, 27 (04) :437-452

[4]

GARRELS RM, 1960, AM J SCI, V258, P57

[5]

HAMILTON IC, 1980, J ELECTROANAL CHEM, V118, P327

[6] AN XPS STUDY OF GOLD DEPOSITION AT LOW-TEMPERATURES ON SULFIDE MINERALS - REDUCING AGENTS [J].

HYLAND, MM ;

BANCROFT, GM .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1989, 53 (02) :367-372

[7]

KONNO H, 1991, BUNSEKI KAGAKU, V40, P609

[8]

Li J, 1993, EPD C, P229

[9] PYRITE OXIDATION AND REDUCTION - MOLECULAR-ORBITAL THEORY CONSIDERATIONS [J].

LUTHER, GW .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1987, 51 (12) :3193-3199

[10]

MATHEWS CT, 1972, AUSTR CHEM ENG AUG, P21

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