Study of the crystallization process of ferric sulfate hydrate from rich of Fe(III) waste solutions

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creativework.keywordsCrystallization process, Ferric sulfate hydrate, Waste solutions
creativework.publisherUniversity of Chemical Technology and Metallurgyjournal@uctm.eduen
dc.contributor.authorStamenov L.
dc.contributor.authorStefanova V.
dc.contributor.authorPetkov K.
dc.contributor.authorIliev P.
dc.date.accessioned2024-07-16T11:16:47Z
dc.date.accessioned2024-07-16T11:18:26Z
dc.date.available2024-07-16T11:16:47Z
dc.date.available2024-07-16T11:18:26Z
dc.date.issued2017-01-01
dc.description.abstractIn present study the crystallization process of ferric sulfate hydrate - Fe2(SO4)3.xH2O from rich in Fe(III) sulfate waste solutions was investigated. These solutions were obtained after autoclave oxidation of pyrite concentrate. They are characterized with high concentrations (> 60 g l-1) of ferric ions and sulfuric acid. Based on the ternary diagram of the Fe2(SO4)3-H2SO4-H2O system and the laboratory tests the necessary compositions and conditions for preparation of saturated solutions for ferric sulfate crystallization process were determined. It was found that the crystallization process takes place with obtaining of bulky sludge containing following phases: FeH(SO4)2.4H2O (rhomboclase), Fe2(SO4)3.8H2O (ferric sulfate with eight molecules water) and Fe4.67(SO4)6(OH)2.20H2O (ferric sulfate hydroxide hydrate). After detention of the sludge for seven days at temperature 373 K two modifications of ferric sulfate hydrate were observed: ferric sulfate hydroxidehydrate(Fe4.67(SO4)6(OH)2.8H2O) and paracoquimbite (Fe2(SO4)3.9H2O).
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:85014076117en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1162
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85014076117&origin=inward
dc.titleStudy of the crystallization process of ferric sulfate hydrate from rich of Fe(III) waste solutions
dc.typeArticle
oaire.citation.issue2
oaire.citation.volume52
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