直接合成三碘化铑的实验研究与动力学讨论  

Experimental Study and Dynamics Discussion of RhI_3 Direct Synthesis

作　　者：权变利[1] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550003

出　　处：《稀有金属与硬质合金》2012年第4期7-9,共3页Rare Metals and Cemented Carbides

基　　金：贵州省科学技术基金项目(黔科合J字【2012】2116号)

摘　　要：采用直接合成法使铑粉与碘粉反应生成三碘化铑,分析了反应温度、反应时间、原料配比对转化率的影响,并确定了最佳反应条件。通过Arrhenius公式求得反应活化能,结果表明,反应温度对反应速率的影响较为有限,可考虑使用催化剂、提高反应物碘浓度等来提高反应速率。Direct synthesis method was applied in RhI3 preparation from 12 powder and Rh powder. Analysis is made of the influences of reaction temperature, reaction time and ball to powder ratio on the conversion rate, and the optimal reaction conditions were determined. Activation energy of the reaction was computed by Arrhenius formula. The results show that the effect of reaction temperature is limited. Therefore,the measures of using catalyst,improving I2 concentration and so on should be considered to improve the reactlon rate.

关 键 词：三碘化铑 直接合成 转化率 活化能 

分 类 号：TQ138.22[化学工程—无机化工]