Solid-liquid Extraction of phosphate ion using krypto fix 2.2.1 B polymer

	Solid-liquid Extraction of phosphate ion using krypto fix 2.2.1 B polymer
journal of kerbala university
Article 1, Volume 4, Issue 1, 2008, Pages 1-7 PDF (0 K)
Abstract
This paper describe the high selectivity of krypto fix 2.2.1 B polymer to extracted phosphate ion from acid ,base and neutral solutions .And study the effect of time ,PH solution and ethanol-water ratio on the selectivity of an extraction of phosphate ion .From acid solution phosphate ion will be extracted by krypto fix 2.2.1 B polymer (PC 2.2.1 ) resin as association complex (H3O+)3LPO4-3 ,with mole ratio 1:1 .The highest molar distribution coefficient and percent of extraction reached to 97% were obtaind at 2.00 M sulfuric acid solution .From neutral solution phosphate ion will be extracted by PC 2.2.1 resin as association complex (M+)3LPO4-3 , with mole ratio 1:1 .The highest molar distribution coefficient and percent of extraction reached to 86% were obtaind at 0.01 M sodium chloride solution .From base solution phosphate ion extracted by PC 2.2.1 resin as association complex (M+)3LPO4-3, with mole ratio 1:1 .The highest molar distribution coefficient and percent of extraction reached to 84% were obtaind at 0.01 M sodium hydroxide solution .The sorption rate of phosphate ion by PC 2.2.1 resin was studied as a function of shaking time ,results obtained revealed that the extraction processes was reached to equilibrium at 20 Min .The effect of ethanol concentration of the aqueous phase for the extraction of phosphate ion by PC 2.2.1 resin has been evaluated .It was found to be that 20% V/V ethanol concentration was the better for its extraction .The thermodynamic factors of extraction were evaluated that the extraction process was endothermic and the process was speontenous .

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