熔鐵中の珪素, 熔滓及び H/H_2O 混合瓦斯間の平衡 (IV) : (SiO_2)CaO-Al_2O_3(sat)+2H_2=Si__-+2H_2O 反應の平衡の測定

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Using a pure Al_2O_3 crucible, authors measured the following reaction under the conditions of 3 Al_2O_3・2 SiO_2, Al_2O_3 or 3CaO・5 Al_2O_3 saturation at the temperatures of 1, 550° and 1, 600℃ ; (SiO_2)CaO-Al_2O_3(sat)+2H_2=Si__-+2H_2O Further, the activities of SiO_2 in the molten slags of SiO_2-CaO-Al_2O_3 ternary system were calculated from the equilibrium values of Si in molten iron at a given temperature and gas ratio PH_2/PH_2O, where the pure β-cristobalite was taken as the standard state. The authors illustrated the relation of the equi ibrium among Si in molten iron, activity of SiO_2 of the SiO_2-CaO-Al_2O_3 molten slag saturated with Al_2O_3 and H_2-H_2O mixed gas. Finally, authors determined the liquidus lines in the presence of molten iron at temperatures of 1, 500°and 1, 600℃ on the Al_2O_3 side of SiO_2-CaO-Al_2O_3 ternary diagram from the equilibrium compositions of slags.
1953-11-25