abstract |
SUMMARY OF THE INVENTION: as a substance containing calcium oxides, the mixture contains fluxed lime with 3-9% Fe203 in the following ratio, May. %: aluminum 8-25, silicocalcium 7-14, fluxed lime - the rest. The ratio of aluminum to silicocalcium (1-2): 1. The mixture may contain in excess of T00% fluorspar 5-10. 1 zpp file, 1 tab. |