CHARACTERISTICS OF THE OXIDATION-PRODUCTS OF SPHERICAL SAMPLES OF LEAD SULFIDE IN THE TEMPERATURE-RANGE 773-1023-K

被引：7

作者：

BUGAJSKA, M

KARWAN, T

机构：

[1] Academy of Mining and Metallurgy, Institute of Non-Ferrous Metallurgy., Cracow

来源：

THERMOCHIMICA ACTA | 1979年 / 33卷 / OCT期

关键词：

D O I：

10.1016/0040-6031(79)87028-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The products obtained from the oxidation of spherical galena and spectroscopically pure (s.p.) Pbs samples in air have been studied using a thermogravimetric method. The thermal effects occurring in the course of non-isothermal heating have been identified, and a balance of sulphur oxidized to the gaseous state (SO2 and SO3) and sulphur present in the lead sulphates formed has been drawn. The distribution of individual phases across a sample cross-section, the growth rate of the layer of galena oxidation products during the process and their structure have been determined. It was found that the lead sulphide formed is non-stoichiometric and the type of damage changes in the course of the oxidation process. © 1979.

引用

页码：41 / 50

页数：10

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