Various method tried for modifying chrome ores for refractory use. Chrome ores vary widely in chemical composition but one made up chiefly of MgO, Al₂O₃ combined as a member of an isomorphous spinel-type series. The problem of modifying chrome r...

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다국어 초록 (Multilingual Abstract)
Various method tried for modifying chrome ores for refractory use. Chrome ores vary widely in chemical composition but one made up chiefly of MgO, Al₂O₃ combined as a member of an isomorphous spinel-type series. The problem of modifying chrome r...
Various method tried for modifying chrome ores for refractory use. Chrome ores vary widely in chemical composition but one made up chiefly of MgO, Al₂O₃ combined as a member of an isomorphous spinel-type series.
The problem of modifying chrome refractories by chemical and thermal treatment, therefore, involves a knowledge of the system MgO- Al₂O₃ -Cr₂O₃. This study is based on experiments in which two series of chromium oxide-alumina fusions containing 10% and 30% Cr₂O₃ respectively, were fused in an electric-arc furnance with MgO up to 5 except Fe₂O₃ and FeO.
The determination of the effect of silica and titania on crystallization of these fusion, as indicated by a petrographic method of examination, was the chief purpose of this study.
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