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以AlCl3为络合物配体,研究Sm2O3-Eu2O3-Gd2O3的分离特性.结果表明,其传输能力为:Sm≈Gd>Eu,氯化物主要在980~1100 K沉积.不同温区的最大分离系数分别为:βEu/Sm;1200 K=1.70, βEu/Gd; 1300 K=1.88, βSm/Gd; 1300 K=1.24,β'Sm/Eu; 850~880 K=2.76, β'Gd/Eu; 880~900 K=2.83, β'Gd/Sm; 800 K=1.12,高于传统的湿法分离系数.

参考文献

[1] Wang ZC.;Wang LS. .THERMODYNAMIC PROPERTIES OF THE RARE EARTH ELEMENT VAPOR COMPLEXES LNAL(3)CL(12) FROM LN=LA TO LN=LU[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,1997(8):1536-1540.
[2] Murase K;Adachi G;Hasimoto M et al.Mass spectrometric investigation of the vapour over the LnCl3-KCl equimolar melt(Ln=Nd,Er) at high temperatures[J].Bulletin of the Chemical Society of Japan,1996,69(02):353.
[3] Murase K;Shinozaki K;Hirashima Y et al.Rare earth separation using a chemical vapour transport process mediated by vapour complexes of the LnCl3-AlCl3 system[J].Journal of Alloys and Compounds,1993,198(01):31.
[4] Murase K;Shinozaki K;Machida K et al.Mutual separation characteristics and mechanism for lanthanoid elements via gas phase complexes with alkaline metal and/or aluminium chlorides[J].Bulletin of the Chemical Society of Japan,1992,65(10):2724.
[5] Adachi G;Murase K;Shinozaki K et al.Mutual separation characteristics for lanthonoid elements via gas phase complexes with alkaline chlorides[J].Chemistry Letters,1992,244(04):511.
[6] Murase K;Machida K;Adachi G .Vapour phase extraction and mutual separation of rare earths from monazite using chemical vapour transport mediated by vapour complexes[J].Chemistry Letters,1994,249(09):1297.
[7] Murase K;Ozaki T;Machida K et al.Extraction and mutual separation of rare earths from concentrates and crude oxides using chemical vapour transport[J].Journal of Alloys and Compounds,1996,233(15):96.
[8] Murase K;Machida K;Adachi G .Recovery of rare metals from scrap of rare earth intermetallic material by chemical vapour transport[J].Journal of Alloys and Compounds,1995,217(01):218.
[9] Wang Z C;Yu J;Yu Y L .Comparative study of the mutual separation characteristics and mechanism for neighboring rare earth elements from binary chloride mixtures and oxide mixtures via vapour complexes[J].Bulletin of the Chemical Society of Japan,1996,69(08):2369.
[10] Wang ZC.;Yu YL.;Sun YH.;Yu J. .Comparative study of the mutual separation characteristics for neighboring rare earth elements from quaternary systems LaCl3-CeCl3-PrCl3-NdCl3 and La2O3-CeO2-Pr6O11-Nd2O3 via vapor complexes LnAl(n)Cl(3n+3)[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):147-150.
[11] Wang ZC.;Sun YH. .A STEPWISE SELECTIVE CHLORINATION-CHEMICAL VAPOR TRANSPORT REACTION FOR RARE EARTH SEPARATION[J].Chemistry Letters,1997(11):1113-1114.
[12] Barin I;Knacke O.Thermochemical Properties of Inorganic Substances[M].Berlin:Springer,1973:696.
[13] Barin I;Knacke O;Kubaschewski.Thermochemical Properties of Inorganic Substances[M].Berlin:Springer,1977:656.
[14] Gschneidner K A.Rare earth speciality inorganic chemicals[A].London:The Royal Soc.of Chem,1981:285.
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