铝热法冶炼金属铬  

SMELTING METAL CHROMIUM USING ALUMINOTHERMICS

作　　者：孙朝晖[1] 杨仰军[1] 

机构地区：[1]攀枝花钢铁研究院

出　　处：《钢铁钒钛》1996年第1期17-21,36,共6页Iron Steel Vanadium Titanium

摘　　要：通过试验得到了铬回收率与配铝系数及单位炉料热效应的关系；同时得到了产品中Ｆｅ，Ｓｉ，Ａｌ等主要杂质元素与配铝系数的关系，并建立了数学模型。应用这个数学模型，采用平均品位只有８２．８５％的三氧化二铬（远低于前人提出≥９４％的要求），冶炼出符合ＧＢ３２１１－８７ＪＣｒ９８．５Ａ标准的金属铬产品，铬的平均收率为８５．４４％。On the basis of the experimental results, the relation between the efficiency of recovering element chromium and proportion of metal aluminium in material and the energy sent out by every kilogram material was found out, At the same time, the relation between the contents of element Fe, Si, Al in the product and the proportion of metal aluminium in material was obtained. Then the mathematic model was established. According to this model and using the material containing 82. 85%Cr_2O_3 (average value, it is far below 94% which is required before), the metal chromium was smelted. The average efficiency of recovering element Cr is 85. 44%.

关 键 词：铝热法 炼铬 回收率 

分 类 号：TF791[冶金工程—钢铁冶金]