EXTRACTION OF LANTHANIDES AND ACTINIDES BY ALKYLPHOSPHINE OXIDES .4. EXTRACTION OF TRIVALENT CATIONS BY TRI-N-BUTYL-PHOSPHINE OXIDE OR TRI-N-OCTYLPHOSPHINE OXIDE

被引：25

作者：

GOFFART, J

DUYCKAER.G

机构：

[1] Laboratoire de Chimie Analytique et Nucléaire, Université de Liège

来源：

ANALYTICA CHIMICA ACTA | 1969年 / 46卷 / 01期

关键词：

D O I：

10.1016/0003-2670(69)80046-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The extraction of trivalent lanthanides and actinides by trialkylphosphine oxides is based on the equilibrium Mea3+3+NO3a-+3 Alk3PO0 ⇌ Me(NO3)3·3 Alk3PO0 At constant ionic strength (sodium nitrate 2 M), the equilibrium constants for the complex formed between tri-n-octylphosphine oxide in n-octane and 241Am or 244Cm have been calculated; the values are respectively(2.9±0.5)·107 M-3 and (1.7±0.15)·l07 M-3.The distribution of lanthanides and actinides between, 0.1 M tri-n-butylphosphine oxide in benzene and nitric acid solutions of different concentrations was examined and discussed. © 1969.

引用

收藏

页码：91 / &

相关论文

共 17 条

[1] CONDITIONS FOR QUANTITATIVE PRECIPITATION OF PHOSPHATE AS AMMONIUM 12-MOLYBDOPHOSPHATE [J].

ARCHER, DW ;

HESLOP, RB ;

KIRBY, R .

ANALYTICA CHIMICA ACTA, 1964, 30 (05) :450-&

[2]

BAES CF, 1962, J PHYS CHEM, V66, P1929

[3] COMPLEXES OF TRIVALENT LANTHANIDE AND ACTINIDE IONS .I. OUTER-SPHERE ION PAIRS [J].

CHOPPIN, GR ;

STRAZIK, WF .

INORGANIC CHEMISTRY, 1965, 4 (09) :1250-&

[4] LANTHANIDE COMPLEXES .4. COMPLEXES OF TRIPHENYLPHOSPHINE OXIDE WITH LANTHANIDE AND YTTRIUM NITRATES [J].

COUSINS, DR ;

HART, FA .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1967, 29 (07) :1745-&

[5]

DREZE P, 1966, THESIS U LIEGE

[6] SPECTRAL STUDIES OF RARE EARTH COMPLEXES OF TYPE M(NO3)3 3TBP [J].

FERRARO, JR ;

CRISTALL.C ;

FOX, I .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1967, 29 (01) :139-&

[7] POTENTIOMETRIC TITRATION OF METAL IONS USING SILVER ELECTRODE [J].

FRITZ, JS ;

GARRALDA, BB .

ANALYTICAL CHEMISTRY, 1964, 36 (04) :737-&

[8] EXTRACTION OF LANTHANIDES AND ACTINIDES BY ALKYLPHOSPHINE OXIDES .3. EXTRACTION OF NITRIC ACID BY SOME DIPHOSPHINE OXIDES [J].

GOFFART, J ;

DUYCKAER.G .

ANALYTICA CHIMICA ACTA, 1967, 39 (01) :57-&

[9] LEXTRACTION DES LANTHANIDES ET DES ACTINIDES PAR LES OXYDES DALKYPHOSPHINE .2. LEXTRACTION DE LACIDE NITRIQUE PAR LES OXYDES DE TRI-N-HEXYLPHOSPHINE DE TRICYCLOHEXYLPHOSPHINE ET DE TRI-N-OCTYLPHOSPHINE [J].

GOFFART, J ;

DUYCKAER.G .

ANALYTICA CHIMICA ACTA, 1967, 38 (04) :529-&

[10] LEXTRACTION DES LANTHANIDES ET DES ACTINIDES PAR LES OXYDES DALKYLPHOSPHINE .1. LEXTRACTION DE LACIDE NITRIQUE PAR LOXYDE DE TRI-N-BUTYLPHOSPHINE [J].

GOFFART, J ;

DUYCKAER.G .

ANALYTICA CHIMICA ACTA, 1966, 36 (04) :499-&