Immobilization of cesium by crystalline zirconium phosphate

被引：30

作者：

Itoh, K

Nakayama, S

机构：

[1] Daiichi Kigenso Kagaku Kogyo Co Ltd, Planning & Dev Sect, Chuo Ku, Osaka 5410043, Japan

[2] Nihama Natl Coll Technol, Dept Appl Chem & Biotechnol, Niihama 7928580, Japan

来源：

JOURNAL OF MATERIALS SCIENCE | 2002年 / 37卷 / 08期

关键词：

Cesium - Crystalline materials - Hydrothermal synthesis - Leaching - Pyrolysis - X ray diffraction analysis;

D O I：

10.1023/A:1014933807139

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

HZr2(PO4)(3) was prepared by the thermal decomposition of NH4Zr2(PO4)(3) which was synthesized in advance by a hydrothermal reaction from a mixed solution of ZrOCl2, H3PO4 and H2C2O4. Mixtures of HZr2(PO4)(3) with various amounts of CsNO3 were treated at 700-1200degreesC, in order to investigate the immobilization of Cs ion. When a mixture of CsNO3/HZr2(PO4)(3) in a molar ratio of 0.36 was treated at 700degreesC, the main product was suggested to be CsZr2(PO4)(3) from XRD measurements. The leaching rate of Cs ion from this product was less than 10(-10)g . cm(-2) . day(-1) in 0.1 mol . 1(-1) HCl solution at 100degreesC, indicating that HZr2(PO4)(3) reacts with CsNO3 to give a stable Cs-immobilized product. (C) 2002 Kluwer Academic Publishers.

引用

页码：1701 / 1704

页数：4

共 13 条

[1]

BERNADZIKOWSKI TA, 1983, AM CERAM SOC BULL, V62, P1364

[2] SOME OBSERVATIONS ON ION EXCHANGE PROPERTIES OF CRYSTALLINE ZIRCONIUM PHOSPHATE [J].