FAILURE OF ION-EXCHANGE INTO ZEOLITES-A AND ZEOLITES-X FROM 4 DIVERSE NONAQUEOUS SOLVENTS

被引：19

作者：

HO, K ^{[1
]}

LEE, HS ^{[1
]}

LEANO, BC ^{[1
]}

SUN, T ^{[1
]}

SEFF, K ^{[1
]}

机构：

[1] UNIV HAWAII MANOA,DEPT CHEM,HONOLULU,HI 96822

来源：

ZEOLITES | 1995年 / 15卷 / 04期

关键词：

ZEOLITES; ION EXCHANGE; NONAQUEOUS; ZEOLITE A; ZEOLITE X; ANHYDROUS;

D O I：

10.1016/0144-2449(94)00063-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fully anhydrous ion exchange into zeolite single crystals was attempted using nonaqueous solutions. Under various conditions, Na-A was exposed to flowing solutions of CuCl, CuCl2, and CuSO4 in acetonitrile and of CuCl2, in methanol. Na-A was treated with dimethyl sulfoxide solutions of Pb(NO3)(2) and, at 140 degrees C, KNO3. Finally, Na-A and Na-X were treated with HgS in liquid sulfur at 400 degrees C. X-ray crystallography showed that in no case had any ion exchange occurred. Perhaps cations neither enter the zeolite nor leave sites within because their solvation complexes cannot hydrogen bond to framework oxygens.

引用

页码：377 / 381

页数：5

共 31 条

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