Physicochemical Similarity in Mining and Metallurgical Processing of Polymetallic and Iron Ores

Karel Stránský, Lubomír Stránský, František Kavička, Simona Hutařová, Drahomíra Janová, Bohumil Sekanina, Věra Souchopová, Jiří Merta

Archeologia technica, vol. 24 (2013)
Pages: 3–7
Language: Czech
Type of article: scientific article
DOI: n/a

Abstract:
This paper is dealing with possibility of using the theory of physicochemical similarities to unite a view of mining and metallurgical processing of polymetallic and iron ores. It is shown that the basic properties of mined polymetallic and iron orescan be characterized by dimensional physical and chemical properties of extracted pure metal. These properties can include specific density, smelting temperature, thermal conductivity and latent heat. These basic dimensional quantities characterizing the properties of ores mentioned above can be completed by reduction-processing temperature and reducing annealing time in primitive metallurgical furnaces heated by charcoal. It is shown that these six dimensional quantities can be described in terms of three theorems of physical similarity, it means Pi theorem, theorem of dimensional homogeneity and dimension independence theorem, via dimensionless similarity criteria, similarity of numbers. In addition to variable time of reducing smelting process remaining four dimensional quantities indicate physicochemical properties of polymetallic and iron ores. These ores are firmly and stably bound in nature. For the 20 elements mentioned this bound is very firm and is applied with a correlation coefficient 0.6129 according to data of experimentally measured dimensional quantities. This correlation relationship is statistically significant for used log-log relationship between both similar numbers.