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- W2390373390 abstract "Tungsten slags are leached with H2SO4,extracted with P204.TBP and paraffin,followed by alkalistripping,HCl dissolution,oxalic acid precipitation and ignition to obtain crude scandium oxide.Its refinement process covers removal of calcium,Zirconium,PMBP and RE impuritces from C6H6 extraction and oxalic acid frecipitation.Based on the above circuit,the crude scandium oxide is treated twice with high－ purity reagent to obtain Sc2O3 99． 99％ ." @default.
- W2390373390 created "2016-06-24" @default.
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- W2390373390 date "2001-01-01" @default.
- W2390373390 modified "2023-09-24" @default.
- W2390373390 title "Extraction of Hihg－ Purity Scandium Oxide from Tungsten Slag" @default.
- W2390373390 hasPublicationYear "2001" @default.
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