季铵盐改性有机凹凸棒石的制备与表征研究  

Preparation and Characterization of Organic Palygorskite Modified by Quaternary Ammonium Salt

作　　者：田兰兰 张利权 李清林 熊莲[1,2] 张海荣 陈新德[1,2] TIAN Lan-lan;ZHANG Li-quan;LI Qing-lin;XIONG Lian;ZHANG Hai-rong;CHEN Xin-de(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangdong Guangzhou 510640;Xuyi Center of Attapulgite Applied Technology Research Development ＆ Industrialization,Chinese Academy of Sciences,Jiangsu Xuyi 211700;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院广州能源研究所,广东广州510640 [2]中科院广州能源所盱眙凹土研发中心,江苏盱眙211700 [3]中国科学院大学,北京100049

出　　处：《广州化工》2018年第22期35-37,52,共4页GuangZhou Chemical Industry

基　　金：盱眙县政府开放性课题(201604);江苏省重点研发计划-产业前瞻与共性关键技术(BE2016125);淮安市重点研发计划(工业及信息化)项目(HAS201628)

摘　　要：凹凸棒石粘土具有一定的阳离子交换容量(CEC),可以与有机季铵盐进行离子交换从而在凹凸棒石表面引入功能基团并改变凹凸棒石的表面性能。本论文考察了有机酸种类对凹凸棒石CEC的影响。然后,利用季铵盐对凹凸棒石进行有机改性。研究发现,凹凸棒石原矿分别经稀硫酸和稀盐酸活化后,其阳离子交换容量均明显增加。硫酸最佳活化浓度为0. 5 mol/L,而盐酸的最佳改性浓度为1 mol/L。The palygorskite has a certain cation exchange capacity. In order to improve the surface properties of palygorskite（ Pal）,the quaternary ammonium salt（ QAS） was used as organic modifier. The effects of the modified conditions such as acid concentration and calcination temperature on the cation exchange capacity（ CEC） of Pal were investigated. The results indicated that the CEC of Pal was increased sharply after being activated by acid. The best activation concentration of sulfur acid was 0. 5 mol/L,while the best activation concentration of hydrochloric acid was1 mol/L.

关 键 词：有机凹凸棒石 二甲基二烯丙基氯化铵 阳离子交换 

分 类 号：TB332[一般工业技术—材料科学与工程]