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Citation: ZHAO Yan, LIU Wei, LIU Song-Yu. Synergistic Extraction of Pr(Ⅲ) by 1,9-Bis(1'-phenyl-3'-methyl-5'-oxopyrazole-4'-yl)-1,9-nonanedione with Neutral Nitrogenous Extractants[J]. Chinese Journal of Applied Chemistry, ;2003, 20(9): 903-907. shu

Synergistic Extraction of Pr(Ⅲ) by 1,9-Bis(1'-phenyl-3'-methyl-5'-oxopyrazole-4'-yl)-1,9-nonanedione with Neutral Nitrogenous Extractants

ZHAO Yan ^a,, ,
LIU Wei ^b ,
LIU Song-Yu ^c

1.
a Department of Chemistry, Yunnan Normal University, Kunming 650092;
2.
b Yunnan Academy of Tabacco Science, Kunming;
3.
c Department of Chemistry, Yunnan University, Kunming

Corresponding author: ZHAO Yan,
Received Date: 4 December 2002
Available Online: 16 June 2003

The synergistic extractions of Pr(Ⅲ) with 1,9-bis(1'-phenyl-3'-methyl-5'-oxopyrazole-4'-yl)-1,9-nonanedione(H₂A) and neutral nitrogenous bidentate extractants(B), such as 1,10-phenanthroline(Phen), 2,9-dimethyl-4,7-diphenyl-phenanthroline(DDPhen), 5-nitro-phenanthroline(NPhen), 2,2'-bipyridyl(2,2'-bipy) and 4,4'-bipyridyl(4,4'-bipy), have been investigated. The extraction complex was shown to be PrA·HA·B. The extraction constants were determined. The solid extracted species PrHA·NPhen was obtained and confirmed by elemental analysis, IR, UV, TG and DTA.
- praseodymium(Ⅲ),
- synergistic extraction,
- chelating extractant,
- neutral nitrogenous extractant
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