铝热还原含钛高炉渣制取钛硅铝合金

Titanium-containing Blast Furnace Slag Produced Titanium-silicon-aluminum Alloy by Aluminothermic Reduction

摘要: 这是一篇冶金工程领域的文章。在氩气保护下，用铝还原含钛高炉渣制得钛硅铝合金。实验结果显示：在1 500 ℃,氩气保护下，铝粉占高炉渣的30%～40%、石灰占5%～15%、萤石≥5%时，还原得到的合金主要为钛硅相、铝硅相、钛相；合金中钛、硅、铝的含量为分别35%～40%、26%～33%、23%～32%，钛、硅、铝的回收率分别为73%～88%、84%～95%、67%～77%。

Abstract: This is an article in the field of metallurgical engineering. At the protection of argon gas, titanium-containing blast furnace slag produced titanium-silicon-aluminum alloy by aluminothermic reduction. The test result shows at 1 500 ℃, at the protection of argon gas, when aluminum powder accounts for 30%～40% of blast furnace slag, lime accounts for 5%～15% and fluorite ≥ 5%, the alloys obtained by reduction are mainly titanium-silicon phase, aluminum-silicon phase, titanium phases. In the alloy, the content of titanium, silicon, aluminum were 35%～40%, 26%～33%, 23%～32%, respectively. The recoveries of titanium, silicon, aluminum were 73%～88%, 84%～95%, 67%～77%, respectively.