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Discussions were made of the principle,method and computer program for drawing the pre-dominance diagrams of the bi-metal co-existed system M_1-M_2-x-y in which the multi-me-tallic compounds may be produced by interaction between compounds of both metals.Theformation of zinc ferrite and its stable region have been analyzed through drawingZn-Fe-S-O system predominance diagrams.The availability of the diagram is given the di-rection to roast the zinc sulfide ore as well.
Discussions were made of the principle, method and computer program for drawing the pre-dominance diagrams of the bi-metal co-existed system M_1-M_2-xy in which the multi-me-tallic compounds may be produced by interaction between compounds of both metals. The formation of zinc ferrite and its stable region have been analyzed through drawing Zn-Fe-SO system predominance diagrams. The availability of the diagram is given the di-rection to roast the zinc sulfide ore as well.