THE CHEMICAL DECOMPOSITION OF RARE-EARTH NITRATES - A NEW METHOD FOR THE ENRICHMENT OF HEAVY YTTRIUM EARTH NITRATES IN KG-QUANTITIES

被引：15

作者：

UNFRIED, P ^{[1
]}

ROSSMANITH, K ^{[1
]}

机构：

[1] UNIV VIENNA,INST ANORGAN CHEM,A-1090 VIENNA,AUSTRIA

来源：

MONATSHEFTE FUR CHEMIE | 1992年 / 123卷 / 1-2期

关键词：

RARE EARTH NITRATES; SEPARATION BY CHEMICAL DECOMPOSITION; DECOMPOSITION OF RARE EARTH NITRATES; BY ORGANIC COMPOUNDS; SEPARATION OF RARE EARTH NITRATES BY CHEMICAL DECOMPOSITION; HYDROLYSIS OF CHEMICALLY DECOMPOSED RARE EARTH NITRATES;

D O I：

10.1007/BF01045290

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

On addition of oxidizable organic substances to molten rare earth nitrates reaction takes place with evolution of nitric oxides and formation of basic nitrates, the two-step hydrolysis of which results in effective enrichment of heavy yttrium earths (YE) from rare earth mixtures in kg-quantities. Using methanol as reducing agent the reaction takes place at 160-degrees-C, much lower than using the method of purely thermal decomposition. In both methods after the first hydrolysis step a product YE(OH)1.5(NO3)1.5.H2O can be isolated.

引用

页码：1 / 8

页数：8

共 7 条

[1] Basic nitrate of yttrium. [J].