Skip to main content
SpringerLink
Log in

Anomalous behaviours of protactinium in the acid-leaching experiments on pitchblende

  • Published:
Journal of Radioanalytical and Nuclear Chemistry Aims and scope Submit manuscript

Abstract

A series of leaching experiments with H2O, HCl, HNO2 and HF were carried out on a sample of pitchblende from Africa. Anomalously high231Pa/235U ratios, which were not accompanied by similar enhancements of234U/238U and235U/238U ratios, were observed in some uranium fractions. The observed231Pa/235U ratios varied between the values of 0.035±0.005 and 2,000±300 (Ci/Ci). These results are interpreted as due, primarily, to the difference in the chemical properties of protactinium and uranium, rather than to the alpha-recoil effects.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. V. V. CHERDYNTSEV, P. I. CHALOV et al., Proc. III. Session, Committee for Determination of Absolute Age (in Russian), Izd. Akad. Nauk SSSR, Moscow, 1955, p. 175.

    Google Scholar 

  2. V. V. CHERDYNTSEV, Abundance of Chemical Elements, translated by W. NICHIPORUK, The University of Chicago Press, 1969, p. 107.

  3. V. V. CHERDYNTSEV, Uranium-234 (in Russian), Atomizdat, Moscow, 1969, p. 1.

    Google Scholar 

  4. J. N. ROSHOLT, W. R. SHIELDS, Science, 139 (1963) 224.

    Google Scholar 

  5. K. KIGOSHI, Science, 173 (1971) 47.

    Google Scholar 

  6. A. KOBASHI, J. SATA, N. SAITO, Radiochim. Acta, 26 (1979) 107.

    Google Scholar 

  7. A. KOBASHI, T. TOMINAGA, Radiochim. Acta, 30 (1982) 205.

    Google Scholar 

  8. M. SAKANOUE, K. KOMURA, Nature (Phys. Sci.), 233 (1971) 80.

    Google Scholar 

  9. R. L. FLEISCHER, Science, 207 (1980) 979.

    Google Scholar 

  10. R. L. FLEISCHER, General Electric Technical Information Series Report No. 81 CRD 228, 1981, p. 1.

  11. R. L. FLEISCHER, General Electric Technical Information Series Report No. 81 CRD 290, 1981, p. 1.

  12. Z. Z. SHENG, P. K. KURODA, Nature, 312 (1984) 535.

    Google Scholar 

  13. Z. Z. SHENG, P. K. KURODA, Radiochim. Acta, 37 (1984) 93.

    Google Scholar 

  14. F. ANDERSON, P. FLEER, Anal. Chem., 54 (1982) 1142.

    Google Scholar 

  15. Y. SAKURAGI, J. L. MEASON, P. K. KURODA, J. Geophys. Res., 88 (1983) 3718.

    Google Scholar 

  16. E. KLUGE, K. H. LIESER, Radiochim. Acta, 27 (1980) 161.

    Google Scholar 

  17. N. A. TALVITIE, Anal. Chem., 44 (1972) 280.

    Google Scholar 

  18. C. W. SILL, Anal. Chem., 50 (1978) 1559.

    PubMed  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, University of Arkansas, 72701, Fayetteville, Arkansas, (USA)

    Z. Z. Sheng & P. K. Kuroda

Authors
  1. Z. Z. Sheng
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. P. K. Kuroda
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sheng, Z.Z., Kuroda, P.K. Anomalous behaviours of protactinium in the acid-leaching experiments on pitchblende. Journal of Radioanalytical and Nuclear Chemistry, Articles 92, 315–321 (1985). https://doi.org/10.1007/BF02219761

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02219761

Keywords

Search

Navigation