改性皂土制备复合干燥剂的研究  

Study on preparation of composite desiccant with modified bentonite

作　　者：荣俊锋[1] 程波 张红阳 聂蓉蓉 付雅婷 魏世晋 RONG Jun-feng;CHENG Bo;ZHANG Hong-yang;NIE Rong-rong;FU Ya-ting;WEI Shi-jin(School of Chemical Engineering,Anhui University of Science and Technology,Anhui 232001,China)

机构地区：[1]安徽理工大学化学工程学院,安徽淮南232001

出　　处：《应用化工》2021年第11期3019-3021,共3页Applied Chemical Industry

基　　金：安徽省重点研究和开发计划项目(201904a07020085);2021年省级大学生创新创业计划项目(s202110361172)。

摘　　要：皂土加入无水氯化钙、微晶纤维素和中性红试剂等,制备一种吸水率高、吸水时间长、以颜色变化为指标的复合型干燥剂。研究表明,皂土经过酸洗处理吸水性明显高于未酸洗的皂土,皂土和无水氯化钙、微晶纤维素的质量比为5∶3∶3时,吸水效果最优,48 h吸水率达103%。Add anhydrous calcium chloride to bentonite,microcrystalline cellulose and neutral red reagent to prepare a composite desiccant with high water absorption,long water absorption time and color change as the index.The results show that:the water absorption of bentonite after acid washing is significantly higher than that of non acid washing bentonite.Bentonite,anhydrous calcium chloride and microcrystalline cellulose are mixed in a certain proportion to prepare desiccant.When the mass ratio of the three is 5∶3∶3,the water absorption effect is the best,water adsorption 48 h,reaching 103%preparation of composite desiccant.

关 键 词：复合干燥剂 皂土 改性皂土 吸水率 

分 类 号：TQ09[化学工程]