Back-extraction of uranium(VI) from organophosphoric acid with hydrazine carbonate

被引：8
|
作者：
Watanabe, M [1 ]
Tatsugae, R
Shirahashi, K
Morita, Y
Kubota, M
机构：
[1] Japan Atom Energy Res Inst, Dept Mat Sci, Tokai, Ibaraki 3191195, Japan
[2] Ishikawajima Harima Heavy Ind Co Ltd, Isogo Ku, Yokohama, Kanagawa 2358501, Japan
[3] Japan Atom Energy Res Inst, Nucl Safety Res Ctr, Dept Safety Res Tech Support, Tokai, Ibaraki 3191195, Japan
[4] Res Org Informat Sci & Technol, Tokai, Ibaraki 3191195, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2001年 / 250卷 / 02期
关键词：
Physical Chemistry; Inorganic Chemistry; Uranium; Phosphoric Acid; Hydrazine;
D O I：
10.1023/A:1017980520304
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The back-extraction of uranium(VI) from di(2-ethylhexyl)phosphoric acid (HDEHP) and diisodecylphosphoric acid (DIDPA) was studied by using hydrazine carbonate as back-extractant. U(Vl) was back-extracted from n-dodecane solutions of 0.5M HDEHP - 0.2M TBP and 0.5M DIDPA UM TBP by hydrazine carbonate. The distribution ratios were decreased with an increase of hydrazine carbonate concentration. The back-extraction equilibria were expressed by slope analysis in consideration of neutralization between the extractant (DIDPA, HDEHP) and hydrazine carbonate, which occurred quantitatively during the back-extraction.
引用
收藏
页码：377 / 379
页数：3
相关论文
共 50 条
  • [21] Extraction of uranium(VI) with diamides of dipicolinic acid from nitric acid solutions
    Lapka, J. L.
    Paulenova, A.
    Alyapyshev, M. Yu
    Babain, V. A.
    Herbst, R. S.
    Law, J. D.
    RADIOCHIMICA ACTA, 2009, 97 (06) : 291 - 296
  • [22] Separation of uranium(VI) by extraction with dibutylditiophosphoric acid
    Curtui, M
    Haiduc, I
    Ghizdavu, L
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2001, 250 (02) : 359 - 362
  • [23] Separation of Uranium(VI) by Extraction with Dibutylditiophosphoric Acid
    M. Curtui
    I. Haiduc
    L. Ghizdavu
    Journal of Radioanalytical and Nuclear Chemistry, 2001, 250 : 359 - 362
  • [24] Modelling of the extraction and back-extraction equilibria of zinc from spent pickling solutions
    Samaniego, H
    San Román, MF
    Ortiz, I
    SEPARATION SCIENCE AND TECHNOLOGY, 2006, 41 (04) : 757 - 769
  • [25] Extraction of uranium(VI) from nitric acid solution with hexyloctylsulfoxide (HxOSO)
    Yang, YZ
    Feng, SY
    JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2002, 253 (01) : 161 - 164
  • [26] Extraction of uranium(VI) from nitric acid solution with hexyloctylsulfoxide (HxOSO)
    Yang Y.-Z.
    Feng S.-Y.
    Journal of Radioanalytical and Nuclear Chemistry, 2002, 253 (1) : 161 - 164
  • [27] EXTRACTION OF URANIUM(VI) FROM SULFURIC-ACID BY TOA IN TOLUENE
    JUZNIC, K
    FEDINA, S
    RADIOCHEMICAL AND RADIOANALYTICAL LETTERS, 1975, 23 (04): : 243 - 248
  • [28] Extraction kinetics of uranium(VI) from sulphuric acid solution by trioctylamine
    Yang, Tianlin
    Yang, Yonghui
    Sun, Sixiu
    He-Huaxue yu Fangshe Huaxue/Journal of Nuclear and Radiochemistry, 1999, 21 (04): : 207 - 212
  • [29] URANIUM(VI) EXTRACTION FROM ACID MIXTURES WITH ORGANOPHOSPHORUS ESTERS.
    Bunus, Florin
    Dumitrescu, Pompilia
    1600, (16):
  • [30] THE BACK-EXTRACTION OF URANYL NITRATE FROM TRIBUTYL PHOSPHATE SOLUTION
    SATO, T
    JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1958, 7 (1-2): : 147 - 149
12345