23 resultados para Praça Olavo Bilac - PA
em Chinese Academy of Sciences Institutional Repositories Grid Portal
Resumo:
, , ,
Resumo:
,/, /,,,
Resumo:
<> ,KluweKozumboKaneshima,500—1000ppm;Wilson,500ppm,Ribbons,4,5-
Resumo:
60 MeV/u18O,239Pa239Pa239U,239Pa,239Pa(10630)min,232Th238U,,,235U,,232Th/238U235U/238U244Pu/238U,NA()/NB()=(PA/PB)f(A,B,S0,R,)239Pa,239Pa
Resumo:
233Pa,,(Di-iso-propyl-ketone)PaF-Pa,Pa;-Pa
Resumo:
Pa,Pa,(MIBK),,233Pa,Pa(),HFPa(),10 s,8 mol/LHClPa,HClHFPa
Resumo:
pAK,CSR,pA
Resumo:
TBP(),,233Pa,Pa()Pa()
Resumo:
10 - 9Pa , , ,
Resumo:
The extraction of protactinium with Aliquat 336 (methyl-tri-caprylyl ammonium chloride) in toluene, cyclohexane and chloroform from HCl, HNO3, H2SO4, HClO4, HF and mixed HCl-HF media was investigated by radioactive tracer technique. Distribution ratios of protactinium between the aqueous solution and the organic phase were determined as a function of shaking time, concentrations of acid in aqueous solution phase, extractant concentration and type of diluents in the organic phase. Aliquat 336 can almost quantitatively extract protactinium from strong HCl solution. At the same time, small amounts of HF in HCl solutions have a strong effect on Pa distribution.
