Mechanisms of dissolution of iron oxides in aqueous oxalic acid solutions

Panias, D; Taxiarchou, M; Paspaliaris, I; Kontopoulos, A

dc.contributor.author	Panias, D	en
dc.contributor.author	Taxiarchou, M	en
dc.contributor.author	Paspaliaris, I	en
dc.contributor.author	Kontopoulos, A	en
dc.date.accessioned	2014-03-01T01:12:04Z
dc.date.available	2014-03-01T01:12:04Z
dc.date.issued	1996	en
dc.identifier.issn	0304-386X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11938
dc.subject	Iron	en
dc.subject	Iron Oxide	en
dc.subject	Organic Acid	en
dc.subject	Oxalic Acid	en
dc.subject	Uv Radiation	en
dc.subject.classification	Metallurgy & Metallurgical Engineering	en
dc.subject.other	Adsorption	en
dc.subject.other	Catalysis	en
dc.subject.other	Iron compounds	en
dc.subject.other	Iron oxides	en
dc.subject.other	Organic acids	en
dc.subject.other	Oxides	en
dc.subject.other	pH	en
dc.subject.other	Solutions	en
dc.subject.other	Surface phenomena	en
dc.subject.other	Temperature	en
dc.subject.other	Ultraviolet radiation	en
dc.subject.other	Aqueous oxalic acid	en
dc.subject.other	Induction period	en
dc.subject.other	Non reductive dissolution	en
dc.subject.other	Organic ligands	en
dc.subject.other	Dissolution	en
dc.title	Mechanisms of dissolution of iron oxides in aqueous oxalic acid solutions	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0304-386X(95)00104-O	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0304-386X(95)00104-O	en
heal.language	English	en
heal.publicationDate	1996	en
heal.abstract	The dissolution of pure iron oxides by organic acids has been extensively reviewed. The mechanism of dissolution comprises three distinct steps: (1) adsorption of organic ligands on the iron oxide surface; (2) non-reductive dissolution; and (3) reductive dissolution. Reductive dissolution involves two stages: an induction period and an autocatalytic period. The overall dissolution process is affected by the pH of the initial solution, temperature, the exposure of solution to UV radiation and the addition of bivalent iron in the initial solution.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Hydrometallurgy	en
dc.identifier.doi	10.1016/0304-386X(95)00104-O	en
dc.identifier.isi	ISI:A1996VD64500010	en
dc.identifier.volume	42	en
dc.identifier.issue	2	en
dc.identifier.spage	257	en
dc.identifier.epage	265	en