CAJ | 학술논문

通过热力学分析研究了真空AlCl歧化法生产铝的过程中C、Al4C3和Al2O3的形成条件。结果表明，形成这些杂质的反应，即CO的歧化反应和金属铝与CO的反应，所需的反应温度随着压力的降低而降低。金属铝-CO体系的lg pCO-1/T图与实验结果相符，表明反应速率快，该体系在真空下接近平衡，该平衡图可以用来预测该体系在真空下可能的反应。
통과열역학분석연구료진공AlCl기화법생산려적과정중C、Al4C3화Al2O3적형성조건。결과표명，형성저사잡질적반응，즉CO적기화반응화금속려여CO적반응，소수적반응온도수착압력적강저이강저。금속려-CO체계적lg pCO-1/T도여실험결과상부，표명반응속솔쾌，해체계재진공하접근평형，해평형도가이용래예측해체계재진공하가능적반응。
The formation conditions of C, Al4C3 and Al2O3 in the AlCl disproportionation process in vacuum to produce aluminum was investigated by thermodynamics analysis. It is demonstrated that the required temperatures for the reactions to form these impurities, the disproportionation of CO and the reactions of metallic aluminum with CO, decrease with decreasing pressure. The lgpCO-1/T diagram of metallic aluminum-CO system agrees with the experimental results, indicating that the reaction rate is very high and this system in vacuum is approximately in equilibrium; therefore, the equilibrium diagram can be used to predict the possible reactions in this system in vacuum.