Purification of thorium by precipitation

被引:0
|
作者
Guo-long Guo
Yang Lu
Dan-dan Yang
Xiao-hong Li
Ming-ming Gong
机构
[1] Beijing Research Institute of Chemical Engineering and Metallurgy,
[2] CNNC,undefined
关键词
Thorium; Purification; Precipitation reaction;
D O I
暂无
中图分类号
学科分类号
摘要
A precipitation method was applied to produce high-purity thorium product from industrial grade Th(NO3)4·4H2O. The conditions of pH in the thorium solution, the contents of hydrogen peroxide, calcination temperature were investigated as well as calcination time. The hydrogen peroxide of 30% (v:v) was added into the thorium solution and was continually stirred. The concentration of hydrogen peroxide was exceeded over 0.1–0.5 mol/L after suitable reaction between Th(NO3)4·4H2O and hydrogen peroxide. The pH of the solution was maintained at 2 through adding ammonium hydroxide. The precipitation obtained in the form of Th2O7·4H2O. The high-purity thorium product was prepared after calcination for 2 h at 700 °C. The purity of the purified thorium product was above 99.8%.
引用
收藏
页码:667 / 671
页数:4
相关论文
共 50 条
  • [41] PRECIPITATION AND HYDROLYSIS OF THORIUM IN AQUEOUS SOLUTION .V. STUDIES OF SYSTEM - THORIUM NITRATE-AMMONIUM OXALATE
    BILINSKI, H
    INGRI, N
    CROATICA CHEMICA ACTA, 1967, 39 (04) : 235 - &
  • [42] *PURIFICATION RADIOACTIVE DU THORIUM ET DE SES ISOTOPES
    PAPPAS, AC
    BULLETIN DE LA SOCIETE CHIMIQUE DE FRANCE, 1949, 16 (9-10): : 705 - 706
  • [43] PEG precipitation for monoclonal antibody purification
    Kuczewski, Michael C.
    Schirmer, Emily
    Zarbis-Papastoitsis, Gregory
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2011, 241
  • [44] Germanium separation and purification by leaching and precipitation
    Saeid Bayat
    Sajjad Aghazadeh
    Mohammad Noaparast
    Mahdi Gharabaghi
    Behrooz Taheri
    Journal of Central South University, 2016, 23 : 2214 - 2222
  • [45] ELECTROTRANSPORT PURIFICATION OF THORIUM UNDER LOW-PRESSURE CONDITIONS
    SCHMIDT, FA
    OUTLAW, RA
    LUNDE, BK
    JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1979, 126 (10) : 1811 - 1817
  • [46] Purification of thorium from uranium-233 process residue
    Webb, OF
    Boll, RA
    Lucero, AJ
    DePaoli, DW
    SEPARATION SCIENCE AND TECHNOLOGY, 1999, 34 (6-7) : 975 - 985
  • [47] Note on the purification and precipitation of casein.
    Northrop, JH
    JOURNAL OF GENERAL PHYSIOLOGY, 1923, 5 (06): : 749 - 750
  • [48] Studies on protamine purification by surfactant precipitation
    Liu, Junguo
    Du Liye
    Zhao Zihua
    Wei Nana
    JOURNAL OF BIOTECHNOLOGY, 2008, 136 : S501 - S502
  • [49] Ethanol precipitation for purification of recombinant antibodies
    Tscheliessnig, Anne
    Satzer, Peter
    Hammerschmidt, Nikolaus
    Schulz, Henk
    Helk, Bernhard
    Jungbauer, Alois
    JOURNAL OF BIOTECHNOLOGY, 2014, 188 : 17 - 28
  • [50] The co-precipitation method in the production of thorium oxide and uranium-thorium mixed oxide fuels - A review
    Bagheri, Narges
    Nosratinia, Ferial
    Zahakifar, Fazel
    Yousefi, Taher
    NUCLEAR ENGINEERING AND DESIGN, 2024, 426