FeS フラックスと炭素飽和溶鉄間の銅分配に及ぼすアルカリ及びアルカリ土類金属硫化物添加の影響

概要

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Measurements have been made to study the effect of the addition of alkaline or alkaline earth metal sulfide such as Li_2S, K_2S, MgS, CaS, SrS or BaS to FeS flux on the copper distribution ratio between FeS flux and carbon saturated liquid iron at 1673K. Since each solubility of MgS and CaS in liquid FeS was limited, no apparent effect of MgS or CaS on the copper distribution ratio was observed. Similar to the effect of Na_2S studied in our previous work, the addition of Li_2S, K_2S, SrS or BaS to FeS increased the copper distribution ratio, L_<Cu>=(mass%Cu)_<flux>/[mass%Cu]_<Fe>, and L_<Cu> reached maximum value at certain content of these additives in each flux. The maximum values of L_<Cu> measured in each flux were 30, 20, 22 and 19 in FeS-LiS_<0.5>, -KS_<0.5>, -SrS and -BaS fluxes, respectively. The sulfur content in liquid iron also decreased by the addition of these sulfides to FeS.
社団法人日本鉄鋼協会の論文
1991-05-01