SOLVENT PERFORMANCE IN THTR NUCLEAR-FUEL REPROCESSING .2. ON FORMATION OF DIBUTYL PHOSPHORIC-ACID BY RADIOLYTIC AND HYDROLYTIC DEGRADATION OF TBP-N-PARAFFIN EXTRACTANT

被引：27

作者：

BRODDA, BG ^{[1
]}

HEINEN, D ^{[1
]}

机构：

[1] KFA JULICH GMBH,INST CHEM TECHNOL,D-5170 JULICH 1,FED REP GER

来源：

NUCLEAR TECHNOLOGY | 1977年 / 34卷 / 03期

关键词：

D O I：

10.13182/NT77-A31808

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Radiolysis and hydrolysis of tributylphosphate (TBP) in n-paraffin diluent were investigated under conditions simulating several parameters of the THOREX flowsheet for reprocessing thorium containing spent nuclear fuel. The solvent (30 vol% TBP-n-paraffin) was equilibrated with 0. 25 to 3 molar nitric acid, and the organic phase was inspected by gas chromatography. As an acid hydrolysis product, only di-n-butylphosphoric acid (HDBP) was detected in the organic phase. It is proposed to denominate TBP degradation product yields according to their origin, hydrolysis or radiolysis (G value), or just by a concentration value in case of mixed origin, valid for the experimental conditions.

引用

页码：428 / 437

页数：10