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Volume 16 Issue 5
Nov.  2021
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Article Contents
Sun Pengnian, Hou Rangkun. Synergistic Effects in Extraction Substrates (Ⅱ)[J]. Chinese Journal of Engineering, 1994, 16(5): 496-500. doi: 10.13374/j.issn1001-053x.1994.05.020
Citation: Sun Pengnian, Hou Rangkun. Synergistic Effects in Extraction Substrates (Ⅱ)[J]. Chinese Journal of Engineering, 1994, 16(5): 496-500. doi: 10.13374/j.issn1001-053x.1994.05.020

Synergistic Effects in Extraction Substrates (Ⅱ)

doi: 10.13374/j.issn1001-053x.1994.05.020
  • Received Date: 1993-02-12
    Available Online: 2021-11-13
  • Based on the steric effect,ligand packing around the uranyl equatorial plane should be neither overcowded nor undercrowded. The sum of Ligand's Fan Angle(FAS)around the uranyl equatorial plane provides a useful criterion for estimating steric crowding.FAS of UO2(OAc)Br(TBP)2 is 180°indecating the most favorable packing. It is therefore expected that a higher extraction efficiency should coincide with the formation of the more stable complex. The above speculation was confirmed by extraction of uranyl ion in the substrates of sodium acetate-acetic acid and sodium bromide. Keeping the total concentration of substractes constant, synergistic extraction is found at l:10 acetate to bromide ratio. The extracted complex was proved to be UO2(OAc)Br(TBP)2 by using the slope method.

     

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      沈陽化工大學材料科學與工程學院 沈陽 110142

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