“Institute Gipronickel” LLC, Saint-Petersburg, Russia:

S. S. Ozerov, Junior Researcher, e-mail: SSOze@nikel.spb.su
A. B. Portov, Researcher
L. Sh. Tsemekhman, Head of Laboratory of Pyrometallurgy

Nowadays, fine grained and finely dispersed materials are mostly processed in metallurgical production. Fine materials are the products of deep concentration, reverse materials, technogenic wastes, which have not been involved into processing earlier. First of all, necessity of using of these materials is explained by their quantitative content of valuable components. Involving of fine grained materials in processing is complicated by their physical state. Firstly, some of melting facilities, such as ore-thermal furnaces and blast furnaces, are not designed for fine material processing. Secondly, there is a problem, associated with transportation of finely dispersed material from mining place or stockpile straightly to metallurgical aggregate. Transportation can be carried out with the help of pulp feed-line (this method is implemented at Polar Division of Norilsk Nickel). However, its construction and operating requires high capital and operating costs, affecting the metal production costs, and technologically and economically unjustified. That is why, the prior sintering, namely briquetting, is supposed to be a successful method of involving of fine materials into processing. This article describes the assessment of influence of key briquetting parameters, based on analysis of published and privately accumulated experimental data.

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