CAJ | 학술논문

在不同温度下氧化铝真空碳热还原和氯化反应的过程中,利用XRD、SEM和EDS检测手段分析TiO2的行为.在制备材料时,Al2O3和C的摩尔比为1∶4,并添加10％ TiO2和过量的AlCl3.结果表明,TiO2从锐钛矿型转化为金红石型后与C反应生成TiC.在1 763-1 783 K的温度区间,在残渣和冷凝物中没有发现Ti和Al的化合物.生成铝的纯度达到98.35％,且TiO2不参与氧化铝真空碳热还原和氯化过程.
재불동온도하양화려진공탄열환원화록화반응적과정중,이용XRD、SEM화EDS검측수단분석TiO2적행위.재제비재료시,Al2O3화C적마이비위1∶4,병첨가10％ TiO2화과량적AlCl3.결과표명,TiO2종예태광형전화위금홍석형후여C반응생성TiC.재1 763-1 783 K적온도구간,재잔사화냉응물중몰유발현Ti화Al적화합물.생성려적순도체도98.35％,차TiO2불삼여양화려진공탄열환원화록화과정.
Behaviors of TiO2 in the alumina carbothermic reduction and chlorination process in vacuum at different temperatures were investigated experimentally by means of XRD,SEM and EDS.In the preparation of materials,the molar ratio of Al2O3 to C was 1:4,and 10％ TiO2 and excess AlCl3 were added.The results show that TiC is produced by C and TiO2 after TiO2 transforms from anatase into futile gradually.In the temperature range of 1 763-1 783 K,the compounds of Ti and Al are not found in slags and condensate.The purity of alumimun reaches 98.35％,and TiO2 does not participate in alumina carbothermic reduction process and chlorination process in vacuum.