摘要:

A solvent aztraotion method based on the preferential extraction of Bc(lll) by 1-phsnyl-,V-methyJ.-4-benzoyl-pyrazolona-5 (HPHBP) has oeen devised for the separation and purification of Sic from otner trivalent aotinides and Ianthanidee. A single ayole purification of Bk(lH) from most of the impurities is obtained by this method An alternate method of purification of BK has been given using extraction chromatography with HEMBP impregnated oelite columns herein decontamination factors of ∼10 are obtained from other trivalent aotinidesi ianthanidee and inactive impurities ilka Fe,Cr,Al,Ni For Ce(III) a decontamination faotor of ∼60 is obtained

ISSN:0736-6299    

DOI:10.1080/07366298308918418

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

摘要:

A method is described for the quantitative separation of uranium from practically all other elements in 1M hydrochloric acid solution containing ascorbic acid. From such a solution uranium is retained selectively by a column containing open-cell polyurethane foam Impregnated with tri-n-octylphosphine oxide (TOPO). The uranium together with TOPO is eluted with ethanol and then 1t is adsorbed on a column of Dowex 1 anion exchange resin from a HC1-organic solvent system. Uranium is eluted with 1M hydrochloric acid.

ISSN:0736-6299    

DOI:10.1080/07366298308918419

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor

ISSN:0736-6299    

DOI:10.1080/07366298308918420

出版商:Taylor & Francis Group    

年代:1983

数据来源: Taylor