Titanium-containing Blast Furnace Slag Produced Titanium-silicon-aluminum Alloy by Aluminothermic Reduction
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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.
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表 1 攀枝花高钛型高炉渣成分/%
Table 1. Composition of Panzhihua high titanium blast furnace slags
TiO2 CaO MgO SiO2 Al2O3 TFe MFe V2O5 MnO2 20~24 20~30 8.0~8.9 17~19 14~16 3.0~4.2 1~3 0.2~0.25 0.3~0.5 -
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