Published 1975 | Version v1
Miscellaneous Open

Lanthanides separation by counter - current electrophoretic using α - hydroxyisobutyric acid

Creators

Description

Studies about counter-current electrophoretic separation of rare earth metal ions using α-hydroxyisobutyric acid as complexing electrolyte are discussed. La, Pr, Nd, Sm and Eu were separated and fractions with purities better than 99,9% were obtained, using neutron activation analysis. A relation between the first stability constant of the α-hydroxyisobutyrate/lanthanide complexes and their migration velocities were observed. (M.J.C.)

Abstract (Portuguese)

Discutem-se estudos sobre a separacao dos ions lantanidicos por eletromigracao contra-corrente (EMCC), usando-se acido α-hidroxiisobutirico como eletrolito complexante. Foram separados os elementos La, Pr, Nd, Sm e Eu, e obtidas fracoes com uma pureza > 99,9%, usando-se o metodo de analise por ativacao com neutrons. Observou-se uma relacao entre a primeira constante de estabilidade dos complexos α-hidroxiisobutirato-lantanidicos e a velocidade de migracao dos ions. (M.J.C.)

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Additional details

Additional titles

Original title (Portuguese)
Separacao de elementos lantanidicos por eletromigracao contra-corrente auto-estabilizavel com acido-α-hidroxiisobutirico

Publishing Information

Imprint Pagination
88 p.
Report number
INIS-BR--1140

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
19065877
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Resource subtype / Literary indicator
Thesis
Descriptors DEI
COMPLEXES; ELECTROPHORESIS; HYDROXY ACIDS; IMPURITIES; NEUTRON ACTIVATION ANALYSIS; QUANTITY RATIO; RARE EARTHS; SEPARATION PROCESSES
Descriptors DEC
ACTIVATION ANALYSIS; CARBOXYLIC ACIDS; CHEMICAL ANALYSIS; ELEMENTS; METALS; NONDESTRUCTIVE ANALYSIS; ORGANIC ACIDS; ORGANIC COMPOUNDS