Oxidation of metal sulphides and determination of characteristic temperatures by DTA and TG

被引：22

作者：

Dimitrov, RI

Boyanov, BS

机构：

[1] Univ Chem Technol & Met, Sofia, Bulgaria

[2] Paisij Hilendarski Univ Plovdiv, Dept Inorgan Chem Technol, BG-4000 Plovdiv, Bulgaria

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2000年 / 61卷 / 01期

关键词：

characteristic temperatures; concentrates; DTA; DTG; oxidation; sulphides; TG;

D O I：

10.1023/A:1010181112713

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The oxidation of metal sulphides and sulphide concentrates was studied by means of DTA, TG and DTG curves. The behaviour of ZnS, CdS, GaS, Tl2S, Sb2S3 and Sb2S5 during thermal treatment in an oxidizing medium was investigated. The properties of these sulphides were compared and conclusions were drawn about their probable oxidation reactions and the kind of end-products obtained. The characteristic temperatures of the studied sulphides were determined on the basis of curves (DTA). The values obtained were used to compare the behaviour of the sulphides during the oxidation process in a fluid bed. The results can be used to improve the technological and economic indices in the industrial production of zinc.

引用

页码：181 / 189

页数：9

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