engleski

The Influence of Carbon Materials on the Properties of MgO Refractories

Results of an on-going investigation into the properties of a MgO refractory with a low carbon content and without phenol resin binders are presented. To improvee the strength, erosion resistance and to decrease phenol evaporation at heating, a preliminary treated coal-tar pitch with a higher melting temperature and a lower content of volatile component were investigated. The samples were treated with heating at 1000 C and the tensile strengths were determined at room temperature. The domestic pre-treated coal-tar pitch showed the best results.

pitch; resins; carboniation; basic refractories; benz(a)pyrene; carbon binder

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