水合NaX沸石与碱金属盐类间的固相离子交换

高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (9): 1336.

水合NaX沸石与碱金属盐类间的固相离子交换

杨春, 须沁华

南京大学化学系, 南京, 210093

收稿日期:1995-08-25 出版日期:1996-09-24 发布日期:1996-09-24
通讯作者: 须沁华
作者简介:杨春,女,36岁,博士研究生,副研究员.

Solid-State Ion Exchange Between Hydrated NaX Zeolite and Alkaline Metal Salt

YANG Chun, XU Qin-Hua

Department of Chemistry, Nanjing University, Nanjing, 210093

Received:1995-08-25 Online:1996-09-24 Published:1996-09-24

摘要/Abstract

摘要： 通过XRD和吡啶吸附的IR技术考察了水合13X沸石与碱金属盐类间的固相离子交换反应,结果表明,此类固相离子交换在室温下即可发生。一次交换的程度有限,通过重复交换可提高交换度,体积较大的Cs⁺比K⁺难于交换,高温焙烧有利于提高Cs⁺的交换度。

关键词: 固相离子交换, 13X沸石, 碱金属盐

Abstract: The solid-state ion exchange between hydrated 13X zealite and alkaline metal salt was studied.XRD patterns and IR spectra of the exchanged samples show that the exchange reaction can occur at ambient temperature.The exchange extent can be enhanced by repeated exchange.Compared with K⁺ ion, the bulky Cs⁺ ion is more difficult to replace Na⁺ ion.The calcination at a higher temperature is favourable to increasing the exchange degree of Cs⁺-exchanged sample.

Key words: Solid-state ion exchange, 13X zeolite, Alkaline metal salts

TrendMD:

杨春, 须沁华. 水合NaX沸石与碱金属盐类间的固相离子交换. 高等学校化学学报, 1996, 17(9): 1336.

YANG Chun, XU Qin-Hua . Solid-State Ion Exchange Between Hydrated NaX Zeolite and Alkaline Metal Salt. Chem. J. Chinese Universities, 1996, 17(9): 1336.

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