氯硅烷歧化反应催化剂干燥特性及催化性能  

Drying characteristics and catalytic performance of catalyzer for the disproportionation of chlorosilane

作　　者：王丽丽[1] 黄国强[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化学工程》2016年第1期33-37,共5页Chemical Engineering(China)

摘　　要：研究了氯硅烷歧化反应催化剂Amberlyst 21和改性后树脂B的干燥特性,考察了供热温度和料层厚度对催化剂干燥规律的影响,并建立了干燥曲线的半经验关联式。此外,还通过滴定法测量了树脂活性官能团含量,最终通过实验检验催化效果。结果表明:树脂B和Amberlyst 21的干燥规律基本类似,得到最优的干燥温度及物料层厚度分别为70℃和3 cm,含水质量分数降至5%时干燥时间分别为23.3,20.0 h。在最优干燥条件下,树脂B的胺基含量略高于Amberlyst 21,2种树脂均可作为三氯氢硅歧化反应的催化剂,且树脂B的催化效果优于Amberlyst 21,反应转化率可达23.42%。The drying characteristics of anion exchange resin Amberlyst 21 and modified resin B were analyzed, the effects of drying temperature and thickness of material on catalyst dry performance were investigated, and the semi- empirical drying correlation of the two resins was also established. The reactive functional group content of two resins was also measured by titration and the catalytic effect was tested by experiments. The results show that the drying characteristics of Amberlyst 21 and resin B are similar, and the best drying temperature and the best thickness of material are 70℃ and 3 cm ; the drying of resin B needs about 23.3 h until the water mass fraction is reduced to 5% and A21 is about 20.0 h. Under the best drying condition, the resin B has a higher catalytic activity, resin B and Amberlyst 21 can be used as the catalyst for the chlorosilane disproportionation reaction, and the catalytic effect of resin B is better than Amberlyst 21. The conversion rate of the chlorosilane disproportionation reaction is 23.42%.

关 键 词：弱碱性阴离子交换树脂 干燥 歧化反应 AMBERLYST 21 催化剂 

分 类 号：TQ426[化学工程]