THERMAL-DECOMPOSITION OF MECHANICALLY ACTIVATED ARSENOPYRITE

被引：10

作者：

BALAZ, P ^{[1
]}

BALASSAOVA, M ^{[1
]}

机构：

[1] SAFARIK UNIV,DEPT PHYS & ANALYT CHEM,CS-04167 KOSICE,SLOVAKIA

来源：

JOURNAL OF THERMAL ANALYSIS | 1994年 / 41卷 / 05期

关键词：

ARSENOPYRITE; MECHANICAL ACTIVATION; THERMAL DECOMPOSITION;

D O I：

10.1007/BF02547199

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The changes in specific surface area and structure disorder of mechanically activated arsenopyrite were investigated. The rate of nonoxidative decomposition of mechanically activated arsenopyrite was increased almost 10 - times when compared with nonoxidative decomposition of a non-activated sample, An empirical linear relationship was found (r = 0.996) between the rate constant of decomposition and the ratio of specific surface to transmission of the absorption band of arsenopyrite at vBAR = 370 cm-1. This relationship enables us to arrange the reaction 4Fe-AsS --> 4FeS + As4 among structure-sensitive reactions.

引用

页码：1101 / 1107

页数：7

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