Extraction of rare earth metals from trichloroacetate solutions in the presence of linear polyoxonium compounds

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Title:Extraction of rare earth metals from trichloroacetate solutions in the presence of linear polyoxonium compounds
Creators:
Vaňura, Petr
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 8, pp. 1585-1592

Abstract

Extraction of rare earth metals from lithium trichloroacetate solutions ( 1.20-2.88 mol l<sup>-1</sup>) with solutions of the commercial nonionic surfactant Slovafol 909 (<i>p</i>-nonylphenylnonaethylene glycol) in chloroform and dichloromethane was investigated. The extraction constants as well as the Slovafol 909 distribution constants were determined in the water-dichloromethane and water-chloroform systems. The lanthanide distribution ratios decrease with their atomic numbers first rather rapidly (approximately to Sm): the separation factor α<sub>Sm</sub><sup>La</sup> = 1.54 and 1.87 in dichloromethane and in chloroform, respectively; for lanthanides with higher atomic numbers the drop is less pronounced (α<sub>Lu</sub><sup>La</sup> = 2.42 and 2.85 in the two solvents, respectively).

Title:Extraction of rare earth metals from trichloroacetate solutions in the presence of linear polyoxonium compounds
Creators:
Vaňura, Petr
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:8
Page Range:pp. 1585-1592
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19911585UNSPECIFIED
ID Code:5084
Item Type:Article
Deposited On:22 Feb 2010 11:30
Last Modified:22 Feb 2010 10:30

Citation

Vaňura, Petr (1991) Extraction of rare earth metals from trichloroacetate solutions in the presence of linear polyoxonium compounds. Collection of Czechoslovak Chemical Communications, 56 (8). pp. 1585-1592. ISSN 0010-0765

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