CaO-CaCl_2系フラックスによる含Cr炭素飽和溶鉄の脱燐

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Dephosphorization of carbon-saturated iron containing chromium was studied by the use of CaO-CaCl_2 flux. In parts of experiments, reduction of slag after dephosphorization treatment was studied by the use of graphite or ferro-silicon. Carbon-saturated iron containing chromium was dephosphorized by CaO-CaCl_2 flux with a few chromium oxidation losses. CaCr_2O_4 was identified as a chromium compound from the results of X-ray diffraction of slag. The favorable flux composition for dephosphorization of metal with about 18%Cr was 40% CaO-60%CaCl_2. When slag after dephosphorization treatment was reduced by graphite, chromium oxide in slag was reduced by about 40%, however, no rephosphorization occurred. When slag was reduced by ferro-silicon, rephosphorization occurred remarkably.dephosphorizationcarbon-saturated ironchromiumcalcium chloridelimeflux
東北大学の論文
1986-09-30