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一、前言攀枝花矿粉—煤粉混合球团外加热直接还原得到的金属化球团以及流态化氢还原攀枝花矿粉得到的焙砂,通过熔化分离渣铁,获得含钒高钛渣。为了提高渣中钛钒在氯化过程中的氯化率,在炉渣氯化处理前先进行氮(碳)化处理,使渣中形成钛(钒)的氮(碳)化物,然后再进行低温氯化。做为提取钛的原料,含钒高钛渣的物相组成和氮(碳)化过程渣中物相结构的变化,对下一步的氯化过程具有决定性的影响。有鉴于此,本文对几种不同类型熔
I. Introduction Panzhihua ore powder - pulverized coal mixed pellets heated directly obtained by the reduction of the metalized pellets and fluidized hydrogen reduction Panzhihua ore obtained calcine, iron and slag by melting to obtain vanadium-containing high-titanium slag. In order to improve the chlorination rate of titanium and vanadium in the chlorination process of slag, nitrogen (carbonization) treatment is performed before the slag chlorination to form titanium (vanadium) nitrogen (carbon) compounds in the slag, and then the low temperature Chlorinated. As a raw material for the extraction of titanium, the phase composition of the vanadium-containing high-titanium slag and the change of phase structure in the nitrogen (carbonization) slag have a decisive influence on the next chlorination process. In view of this, this article on several different types of melting