Effect of Charge-balancing Species on Sm 3+ Incorporation in Calcium Vanadinite
- PDF / 233,044 Bytes
- 6 Pages / 432 x 648 pts Page_size
- 17 Downloads / 141 Views
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x6PxAx 92 &OVROLGVROXWLRQA PRQRYDOHQWFDWLRQ 7KLVKDVEHHQLQYHVWLJDWHGXVLQJ DFRPELQHGPRGHOOLQJDQGH[SHULPHQWDODSSURDFK6WDWLFODWWLFHFDOFXODWLRQVSHUIRUPHGXVLQJ /L1DDQG.DVFKDUJHEDODQFLQJVSHFLHVKDYHVKRZQWKHHQHUJ\FRVWWREHOHVVWKDQKDOIWKDW RIFKDUJHEDODQFLQJYLDIRUPDWLRQRID&DYDFDQF\$VDUHVXOWVROLGVWDWHV\QWKHVLVRI &Dx6Px/Lx 92 &O&Dx6Px1Dx 92 &ODQG&Dx6Px.x 92 &OVROLGVROXWLRQV KDYHEHHQWULDOOHGDQGDQDO\VLVRIWKHUHVXOWLQJSURGXFWVKDVVKRZQDVLJQLILFDQWUHGXFWLRQLQ ERWKWKH6P92DQG&D92VHFRQGDU\SKDVHVDFURVVDOOGRSDQWOHYHOV ,1752'8&7,21 &DOFLXPYDQDGLQLWH&D92 &O LVDFKORUDSDWLWHLVRPRUSKFU\VWDOOLVLQJLQWKH KH[DJRQDO3PV\VWHPZLWKWKH&ODQLRQVO\LQJLQWKH>z@FKDQQHOV9DQDGLQLWHVKDYHEHHQ YLHZHGDVSURVSHFWLYHZDVWHIRUPVIRUDQXPEHURI\HDUVZLWKOHDGLRGRYDQDGLQLWH 3E92 , SURSRVHGDVDSRWHQWLDOKRVWIRU,WKHLRGLQHDEOHWREHLPPRELOL]HGZLWKLQWKH FKDQQHOVRIWKH]D[LV>@6\QWKHVLVRIVLQJOHSKDVH&D92 &OLVGRFXPHQWHGLQWKH OLWHUDWXUHXVLQJDWZRVWHSSURFHVVILUVWO\UHDFWLQJ&D&2DQG92LQDPRODUUDWLRDW &IRUKWRIRUP&D92 WKHQUHDFWLQJWKLVZLWK&D&OLQDPRODUUDWLRDW& UHSHDWHGO\IRUK>@7KHVHSURFHVVLQJFRQGLWLRQVDUHWRRH[WUHPHWRPHHW$:(¶V UHTXLUHPHQWVOLPLWRI& VRDORZWHPSHUDWXUHVLQJOHVWHSV\QWKHVLVKDVEHHQVXFFHVVIXOO\ GHYHORSHGDOORZLQJWKHSURGXFWLRQRIQHDUVLQJOHSKDVHFDOFLXPYDQDGLQLWHDW&LQK>@ +RZHYHUDWWHPSWHGLQFRUSRUDWLRQRI6P&ODVDQLQDFWLYHDQDORJXHIRU3X&ODQG $P&O LQWRWKHFDOFLXPYDQDGLQLWHGLGQRW\LHOGDVLQJOHSKDVHVROLGVROXWLRQ:KLOVWWKH&OZDV VXFFHVVIXOO\LPPRELOL]HGZLWKLQWKHYDQDGLQLWHWKH6PIRUPHGDVHSDUDWH6P92 WHWUDJRQDO ZDNHILHOGLWHSKDVH>@,QWU\LQJWRVXEVWLWXWHDWULYDOHQWFDWLRQRQWRDGLYDOHQWVLWHLQWKHODWWLFH YDFDQF
Data Loading...