caa a22 4500 477139221 CHVBK 20180405111727.0 cr unu---uuuuu 170330e19971201xx s 000 0 eng 10.1023/A:1022933224074 doi (NATIONALLICENCE)springer-10.1023/A:1022933224074 Comparative Coprecipitation of Phosphate and Arsenate with Yttrium and the Rare Earths: The Influence of Solution Complexation [Elektronische Daten] [Xuewu Liu, Robert Byrne, Johan Schijf] Coprecipitation of yttrium (Y) and rare earth elements (REEs) with phosphate and arsenate removes these elements from solution in variable proportions. During both phosphate and arsenate Coprecipitation, middle REEs (Sm and Eu) are progressively depleted in solution relative to heavier and lighter elements. Solution complexation by oxalate (Ox 2-) influences Y and REE removal patterns by strongly enhancing the retention of Y and the heaviest REEs in solution. The extent of this enhancement is well described by a quantitative account of the comparative solution complexation of Y and REEs as M(Ox)+ and M(Ox) $$_{\text{2}}^ - $$ . The comparative behavior of phosphate and arsenate coprecipitation exhibits both similarities and differences. During arsenate coprecipitation the light REEs are retained in solution, relative to the heavy REEs, to a greater extent than is the case for phosphate coprecipitation. Notable irregularities are observed in the comparative coprecipitation behavior of nearest-neighbor elements (e.g., Eu-Gd-Tb and Tm-Yb-Lu). Such irregularities are very similar for phosphate and arsenate coprecipitation in the absence and in the presence of solution complexation. Plenum Publishing Corporation, 1997 Coprecipitation nationallicence rare earths nationallicence lanthanides nationallicence yttrium nationallicence phosphate nationallicence arsenate nationallicence Liu Xuewu Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut Byrne Robert Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut Schijf Johan Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut Journal of Solution Chemistry Kluwer Academic Publishers-Plenum Publishers 26/12(1997-12-01), 1187-1198 0095-9782 26:12<1187 1997 26 10953 https://doi.org/10.1023/A:1022933224074 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1022933224074 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Xuewu Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut NATIONALLICENCE 700 1- Byrne Robert Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut NATIONALLICENCE 700 1- Schijf Johan Department of Marine Science, University of South Florida, 33701, St. Petersburg, Florida aut NATIONALLICENCE 773 0- Journal of Solution Chemistry Kluwer Academic Publishers-Plenum Publishers 26/12(1997-12-01), 1187-1198 0095-9782 26:12<1187 1997 26 10953 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer