Avprlable from the Bf&p,d Tschniqo 1 S v v i e~ Dbpaitinent>of Commerce YlGerhftpton 25, D. C. LEGAL *NOJICE This mpa# uss.wparrd .at ~t t. Q e~~u n t ~f G~w m m e n t s~oaaowd work. .Neither ths Urrlhd $tat-, nor tk*c(iommkkion, l l 0 r~a n y p. m ealng on be&l F d t h .-C O i a~h~i~n : A. A k e a mny-WumHV 'or ~r~m w w h n d or Imgbd, with re* * .thw oceuwcy, &o+mhnuse, or w d u b s a af ~. i n~m m a f d o n cbwinad i n M c report, sf tbut .tit& w w mf 'any 4deraroWn, sapamhlr,~.adm4,.~1 rpraause f d h d b w d in Shis r q m i m y met hSni~#e , .prSr-ly +awmd r&htsj or B. \baqmpf .my .&fabfl%*~snwriWh*bp~ @o the us6 QC br fat domqpa iwr&tng *om the OF ioay rbiUMmaMan, mppocdfuci.m*tlrad,~,w pbia~esa disvlosrd in *his wrpgff.
Coefficients have been determined f o r the d i s t r i b u t i o n of samarium, gadoliniumJ dysprosium and yttrium n i t r a t e s between n i t r i c acid and tributyl phosphate a t varOous acidit i e s and rare-earth concentrations. extraction on rare-e&h concentra'tion increases with acidity The dependence of and with a t o d c nrrmber of the rare earths.
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