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Domanov, V.P.; Khyubener, Z.; Shalaevskij, M.R.; Timokhin, S.N.; Petrov, D.V.; Zvara, I.
Joint Inst. for Nuclear Research, Dubna (USSR)1981
Joint Inst. for Nuclear Research, Dubna (USSR)1981
AbstractAbstract
[en] The thermochromatographic behavior of volatile oxygen compounds of radiorhenium was studied. These were formed in the air with different partial pressure of water vapour. The procedure of continuous thermochromatographic separation of radiorhenium from the products of nuclear reactions induced by heavy ions was developed. It is shown that not more than 10-5 portion of atoms of ytterbium which is homologous with actionoids and of the hafnium and tungsten-the homologs of elements 104 and 105 - pass onto the column thermogradient part. It is found that under these conditions rhenium forms the adsorption zone with the centre at 100+-20 deg C. The transportation time for Re atoms from the targets is estimated to be not more than 3 s, the chemical yield of rhenium is near 80%. The developed method could be used for fast selective isolation of spontaneously fissile isotopes of element 107 as ekarhenium from a mixture of atoms with Z<=107
[ru]
Original Title
Ehksperimental'nyj podkhod k khimicheskoj identifikatsii ehlementa 107 kak ehkareniya
Source
1981; 9 p; 22 refs.; 4 figs.; submitted to the journal Radiokhimiya.
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Report
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