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众所周知,为全面而有效地进行这些反应必须保证原料组份一氧化铅和磁铁矿的活度要高。同时,从掌握自热过程经验可知,渣中磁性氧化铁含量高时,由于渣的非均匀作用(熔体产生泡沫,生成中间层)可引起工艺过程的破坏。能反映氧化阶段条件的渣组成范围没有系统的研究。此外要知道,铅的残余量到多少时,才可能还原渣,并不至于有金属铁独立相生成。
It is well-known that in order to carry out these reactions in a comprehensive and efficient manner, the activity of lead oxide and magnetite, the raw material components, must be guaranteed to be high. At the same time, we can know from the experience of self-heating process that when the content of magnetic iron oxide in slag is high, the process will be damaged due to the non-uniform effect of slag (the foam produced by the melt and the formation of the middle layer). There is no systematic study of the range of slag composition that reflects the oxidation stage conditions. In addition to know, the amount of lead to the residual amount, it is possible to restore the slag, not to have an independent phase of metal iron generated.