(上海大學 上海市現(xiàn)代冶金與材料制備重點實驗室，上海200072)
摘 要: 采用固體透氧膜(SOM)法研究直接電解攀枝花含鈦高爐渣制備鈦硅合金。以經過1 150 ℃預燒2 h成型的攀枝花含鈦高爐渣為陰極，以氧化鋯管內碳飽和銅液為陽極，將兩者置于CaCl2熔鹽中，在1 100 ℃、電解電壓3.5~4.0 V的條件下高溫熔鹽電解2~8 h。采用SEM、EDX和XRD等方法對電解產物進行分析。結果表明：含鈦高爐渣電解還原后的產物為TixSiy系合金，含鈦高爐渣中鈣、鎂和鋁等金屬元素被有效去除。
關鍵字: 鈦合金；含鈦高爐渣；熔鹽電解；固體透氧膜法
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
