(上海大学 上海市现代冶金与材料制备重点实验室，上海200072)
摘 要: 采用固体透氧膜(SOM)法研究直接电解攀枝花含钛高炉渣制备钛硅合金。以经过1 150 ℃预烧2 h成型的攀枝花含钛高炉渣为阴极，以氧化锆管内碳饱和铜液为阳极，将两者置于CaCl2熔盐中，在1 100 ℃、电解电压3.5~4.0 V的条件下高温熔盐电解2~8 h。采用SEM、EDX和XRD等方法对电解产物进行分析。结果表明：含钛高炉渣电解还原后的产物为TixSiy系合金，含钛高炉渣中钙、镁和铝等金属元素被有效去除。
关键字: 钛合金；含钛高炉渣；熔盐电解；固体透氧膜法
Ti-bearing blast furnace slag
（Shanghai Key Laboratory of Modern Metallurgy and Materials Processing, Shanghai University, Shanghai 200072, China）
Abstract:The TixSiy alloy was prepared by solid oxygen-ion membrane(SOM) process from Ti-bearing blast furnace slag. The Ti-bearing blast furnace slag powders sintered at 1 150 ℃ for 2 h were used as the cathode, and the carbon-saturated liquid copper loaded in zirconia tube was used as the anode, which were electrolyzed in a molten CaCl2 at 1 100 ℃ with a potential of 3.5−4.0 V for 2−8 h. The products were analyzed by SEM, EDX and XRD. The results show that Ti-bearing blast furnace slag is electrochemically reduced to TixSiy alloy in molten CaCl2, and the calcium, magnesium and aluminum are completely removed during electrolysis.
Key words: titanium alloy; Ti-bearing blast furnace slag; molten salt electrolysis; solid oxygen-ion membrane process
