Effect of amine structure on gallium extraction from hydrochloric acid solutions

Autor:	I.A. Blaida, A.M. Rozen, E.I. Ponomareva, Z. S. Abisheva
Rok vydání:	1995
Předmět:	Hydrometallurgy Extraction (chemistry) Inorganic chemistry Metals and Alloys Substituent chemistry.chemical_element Hydrochloric acid Industrial and Manufacturing Engineering chemistry.chemical_compound chemistry Steric factor Materials Chemistry Amine gas treating Ammonium Gallium
Zdroj:	Hydrometallurgy. 37:393-399
ISSN:	0304-386X
DOI:	10.1016/0304-386x(94)00016-v
Popis:	The extractability of amine salts has been studied in a series of secondary amines-tertiary amines-quaternary ammonium salts while extracting gallium from hydrochloric acid solutions. The two- and single-parametric correlations obtained have revealed that the steric factor of the substituent attached to the nitrogen atom is not vital to the series of extractants studied. A change in the gallium extraction constant is determined by the induction effect (electronegativity) of substituents, thus the extractability of gallium with quaternary ammonium salts is the highest. Trialkyl amine was thus chosen as an extractant for the commercial applications of gallium extraction from complex acid solutions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ee73896d91abde6f761b0ca90647ff98 https://doi.org/10.1016/0304-386x(94)00016-v Zobrazit plný text záznamu Full Text from ScienceDirect