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- W2356156663 abstract "This work concerns the extraction ratio and distribution of the multi-component in wet process phosphoric acid (WPA) by solvent extraction with tri-butyl phosphate at 50℃,selection coefficient of TBP and co-extraction of water. An exhaustive study of the multi-component extraction system WPA-TBP was carried out. First,the distributions of main components (H3PO4,H2O,TBP) and major impurities of WPA (Mg2+,Al3+,Fe3+,SO42-,SiF62-) between the aqueous and organic phases were systematically studied. Then selectivity of TBP for H3PO4 against the impurities and water co-extraction in the organic phase was expressed in a linear equation. The result shows that when the concentration of H3PO4 was in 5%~75% P2O5, the extraction power of TBP followed the order of Al3+Mg2+SO42-SiF62-Fe3+; when the phase ration was 6~7,the selection coefficient of impurities (Mg2+,Al3+,Fe3+,SO42-) was the minimum,1.5~2.2,but SiF62was the maximum,1.5,so the phase ratio,6~7,was the best condition for purification process of WPA,however,the co-extraction of H2O in the organic phase was reduced for the impurities in WPA." @default.
- W2356156663 created "2016-06-24" @default.
- W2356156663 creator A5075136106 @default.
- W2356156663 date "2009-01-01" @default.
- W2356156663 modified "2023-09-26" @default.
- W2356156663 title "Study on Extraction Performances of Multi-component in Wet Process Phosphoric Acid-Tributyl Phosphate System" @default.
- W2356156663 hasPublicationYear "2009" @default.
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