銅鍍によるマグネタイトの還元について (第2報)

抄録

The small particles of copper matte were settled in the liquid silica saturated FeO-Fe₃0₄-SiO₂ slag at 1300°C. Appreciable amount of sulfur dioxide is produced by the reaction between magnetite and matte only when the content of magnetite in the slag is about 10-13% and over. But the presence of magnetite in the slag, even less than 10-13%, prevents the settlement of matte particles, especially that of the lower grade matte, and raises the grade of the settled matte. The slag loss of copper is mainly due to the suspension of matte particles for the lower grade matte, and to the dissolution of copper for the higher grade matte.