Abstract
In this paper, the results of the study of the reduction of basic lead sulphate with a gas (CO + CO2) mixture are presented. This is a secondary reaction during the reduction of lead sulphate. The change in the both lead and PbS content in the reaction products, depending on the process temperature and the composition of the gaseous phase, was established. The comparison of the rate of the reduction reaction of lead sulphate and basic lead sulphate shows that the process proceeding with a higher output is the reduction of basic lead sulphate.
Highlights
This article is a piece of research on the reduction of metal sulphates
The analysis of the presented relationships shows that with the constant composition of the gaseous phase, the increase of temperature causes the increase of the metallic lead content in the reaction products
The analysis of the processes of the reduction of metal sulphates with a gaseous reducing agent leads to the conclusion that sulphide is always the original product of this reaction
Summary
This article is a piece of research on the reduction of metal sulphates. In the literature, this problem is quite treated. The authors [1] represent research of reduction by CO. The results of the metal sulphates reduction by hydrogen were presented in the papers [2, 3]. The authors indicate the reduction temperature range and resulting products in these temperatures. These results are a qualitative rather, without going into the chemical and phase composition of the process products. Vijh [4] presents an analysis of the sulphate reduction temperature dependence of the selected physicochemical parameters
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