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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 12    No. 2    April 2002

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Suspended electrode kinetics of
mechanically activated pyrite
YIN Zhou-lan(尹周澜),ZOU Jian-peng(邹俭鹏),
CHEN Qi-yuan(陈启元),ZHANG Ping-min(张平民)

College of Chemistry and Chemical Engineering,
Central South University, Changsha 410083, China

Abstract:Suspended electrode was firstly used to study the mechanically activated pyrite. It is found that the dissolved oxygen in the solution has much influence on the suspended pyrite electrode by comparing the open circuit potential of suspended electrodes at different atmosphere conditions. From the measurements of anodic quasi-stable polarization of the suspended electrode, the transfer coefficients of anodic reaction process of activated pyrite and unactivated pyrite β are equal to 0.136 and 0.202 respectively in 1mol·L-1 KCl deoxygenation electrolyte system at 25℃.

 

Key words: mechanical activation; suspended electrode; voltammetry; quasi-stable polarization

ISSN 1672-7029
CN 43-1423/U

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