Manganese and Phosphorus Equilibria between Liquid Copper and MnO-P2O5 Slag.

DOI Web Site 被引用文献5件 参考文献9件
  • Sobandi AHMAD
    Graduate Student, Division of Chemical and Materials Engineering, Muroran Institute of Technology
  • Katayama Hiroshi G.
    Department of Materials Science and Engineering, Muroran Institute of Technology
  • Momono Tadashi
    Department of Materials Science and Engineering, Muroran Institute of Technology

この論文をさがす

抄録

The liquid copper alloys containing 0.2-1.0 mass% Mn and 0.03-0.5 mass% P were equilibrated with MnO saturated and unsaturated MnO-P2O5 slags in a molybdenum crucible under a flowing CO2/CO or CO2/H2 atmosphere in the temperature range of 1523 to 1673 K.<br> Manganese-phosphorus and manganese-manganese interaction parameters in liquid copper were found at 1623 K as follows:<br><br>ePMn= -0.010   eMnP= -0.021   eMnMn= 0.027<br><br>These values were examined by considering the relationships among oxygen partial pressure, the activities of manganese and phosphorus in liquid copper. The standard free energy changes for the reduction of solid MnO, MnO(s)=Mn+1/2 O2(g), and the dissolution of pure liquid manganese in liquid copper, Mn (l)=Mn, were determined as a function of temperature.<br> The activities of MnO and P2O5 in MnO-P2O5 slags were measured at 1573 K as a function of the composition. The temperature dependence equation of the P2O5 activity was also derived in the MnO saturated condition. On the basis of the present results, examination was done concerning phosphorus and manganese equilibria between hot metal and the MnO-P2O5 slag.

収録刊行物

被引用文献 (5)*注記

もっと見る

参考文献 (9)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ