西华大学学报（自然科学版）2017，Vol.36Issue(1)：104-107,4.DOI:10.3969/j.issn.1673-159X.2017.01.019
熔融还原白云石提取金属镁的理论分析与实验研究
Theoretical Analysis and Experimental Study of Extraction of Magnesium from Dolomite by Smelting Reduction
摘要
Abstract
Theory of the silicothermic smelting reduction of MgO by Si was analyzed and experiments of smelting reduction were carried out in molten slag of the compositon 53. 95 % calcined dolomite, 33. 95%Al2 O3 ,9. 70%SiO2、3. 00%CaF2 under vacuum. By thermodynamic analysing, the reduction temperature of liquid MgO react with liquid Si dropped from 2160K to1723K when the system pressure reduced from 1atm to 0. 5 × 104 Pa. The results of experiments show that reduction extent of MgO is achieved up to 91. 4 %with 1X silicon stoichiometry at 1873 K for 60min.关键词
炉渣/白云石/热力学/熔融还原Key words
slag/dolomite/thermodynamics/smelting reduction分类
矿业与冶金引用本文复制引用
唐祁峰,高家诚,陈小华..熔融还原白云石提取金属镁的理论分析与实验研究[J].西华大学学报（自然科学版）,2017,36(1):104-107,4.基金项目
四川省教育厅一般项目(14ZB0124) （14ZB0124）
西华大学重点科研基金项目(z1320109) （z1320109）
西华大学省高校重点实验室开放基金项目(szjj2014-056). （szjj2014-056）
