Kinetics of ethylxanthate adsorption on cerussite in alkaline media in presence or absence of dissolved lead ions

Autor:	S.R. Popov, D.R. Vučinić
Rok vydání:	1994
Předmět:	Adsorption Geochemistry and Petrology Chemistry Attenuated total reflection Desorption Kinetics Monolayer Inorganic chemistry Zeta potential Surface layer Geotechnical Engineering and Engineering Geology Ion
Zdroj:	International Journal of Mineral Processing. 41:115-128
ISSN:	0301-7516
DOI:	10.1016/0301-7516(94)90009-4
Popis:	The kinetics of ethylxanthate adsorption on unmodified or modified (by lead ion species) cerussite surface in alkaline media was examined using infrared attenuated total reflection spectroscopy (ATR-IR) and zeta potential data. IR and zeta potential data showed a desorption of the earlier adsorbed ethylxanthate on unmodified cerussite surface during mineral agitation in ethylxanthate solution (5×10 −5 mol dm −3 ). The amount of adsorbed ethylxanthate also decreased during the collection after cerussite activation for ten minutes in Pb-acetate solution (1×10 −6 mol dm −3 ) before ethylxanthate was added. Only activation with lead ion species for twenty minutes gave rise to the formation of a relatively strong-linked surface layer composed of nonstoichiometric (monolayer and multilayer) lead ethylxanthate, which remained on the mineral surface during the collection.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a298a6a6f86f949bd356feacc5ed8eeb https://doi.org/10.1016/0301-7516(94)90009-4 Zobrazit plný text záznamu