Electro-oxidation of pyrite in sodium chloride solutions

被引：19
|
作者：
Arslan, F [1 ]
Duby, PF [1 ]
机构：
[1] COLUMBIA UNIV,HENRY KRUMB SCH MINES,NEW YORK,NY 10027
来源：
HYDROMETALLURGY | 1997年 / 46卷 / 1-2期
关键词：
D O I：
10.1016/S0304-386X(97)00009-1
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The mechanism of the electro-oxidation of pyrite in NaCl solutions was investigated. Laboratory work was carried out on the production of hypochlorite and the oxidation of pyrite in an electrochemical cell with a 10% sodium chloride electrolyte at 35-40 degrees C. The production rate of hypochlorite was higher when the pH was not controlled than when it was maintained at the initial value of about 6.5. Pyrite was oxidized by the electrochemically generated hypochlorite, with an overall current efficiency of about 97%. The oxidation rate was directly related to the current and it was not affected by the pulp density.
引用
收藏
页码：157 / 169
页数：13
相关论文
共 50 条
  • [21] Removal of naphthalene and phenanthrene in synthetic solutions by electro-oxidation coupled with membrane bioreactor
    José Treviño-Reséndez
    Petia Mijaylova Nacheva
    Environmental Science and Pollution Research, 2021, 28 : 48543 - 48555
  • [22] Removal of naphthalene and phenanthrene in synthetic solutions by electro-oxidation coupled with membrane bioreactor
    Trevino-Resendez, Jose
    Nacheva, Petia Mijaylova
    ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH, 2021, 28 (35) : 48543 - 48555
  • [23] ELECTRO-OXIDATION OF ORTHO-PHENYLENEDIAMINE AT PLATINUM-ELECTRODES IN ACETONITRILE SOLUTIONS
    SOLIS, V
    IWASITA, T
    GIORDANO, MC
    JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1979, 105 (01) : 169 - 179
  • [24] ELECTRO-OXIDATION OF CHALCOPYRITE IN CHLORIDE ACID ENVIRONMENT .2. STOICHIOMETRY AND MECHANISM OF REACTION
    AMMOUCHOKROUM, M
    SEN, PK
    FOUQUES, F
    MEMOIRES SCIENTIFIQUES DE LA REVUE DE METALLURGIE, 1979, 76 (05): : 333 - 344
  • [25] Alcohol electro-oxidation on platinum-ceria/graphene nanosheet in alkaline solutions
    He, Qi
    Shen, Yi
    Xiao, Kaijun
    Xi, Jingyu
    Qiu, Xinping
    INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2016, 41 (45) : 20709 - 20719
  • [26] Electro-oxidation process for molybdenum concentrates
    Fu, JG
    Zhong, H
    Bu, XM
    Wang, FL
    JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY, 2005, 12 (02): : 134 - 139
  • [27] Oscillatory electro-oxidation of thiosulfate on gold
    Bi, Wenyan
    He, Yuxiu
    Cabral, Murilo F.
    Varela, Hamilton
    Yang, Jiaping
    Jiang, Rongli
    Gao, Qingyu
    ELECTROCHIMICA ACTA, 2014, 133 : 308 - 315
  • [28] Electro-oxidation at a coated iridium electrode
    UAE Univ, Al Ain, United Arab Emirates
    Electrochim Acta, 9 (1419-1422):
  • [29] THE MECHANISM OF THE ELECTRO-OXIDATION OF ACETYLENE ON PLATINUM
    JOHNSON, JW
    WROBLOWA, H
    BOCKRIS, JO
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1964, 111 (07) : 863 - 870
  • [30] Electro-oxidation of chlorophenols at a gold electrode
    Ureta-Zañartu, MS
    Bustos, P
    Diez, MC
    Mora, ML
    Gutiérrez, C
    ELECTROCHIMICA ACTA, 2001, 46 (16) : 2545 - 2551
12345