FEASIBILITY STUDY INTO THE POSSIBILITY OF MANGANESE ORE ENRICHMENT WASTE USE FOR SORBENT MATERIAL DEVELOPMENT

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creativework.keywordsore enrichment wastes, silicophosphates, sorbents, structural analysis, technogenic raw materials
creativework.publisherUniversity of Chemical Technology and Metallurgyen
dc.contributor.authorKalymbet A.
dc.contributor.authorKubekova S.
dc.contributor.authorKapralova V.
dc.contributor.authorLavrova S.
dc.date.accessioned2026-01-20T13:58:05Z
dc.date.accessioned2026-01-20T15:55:15Z
dc.date.available2026-01-20T13:58:05Z
dc.date.available2026-01-20T15:55:15Z
dc.date.issued2026-01-01
dc.description.abstractThis study explores the synthesis of sorption-active phosphate materials from manganese ore enrichment tailings of the Zhairem deposit. The initial tailings, predominantly composed of calcite (76.4 %), quartz (16.4 %), and braunite, were characterized by XRD and EPMA. Acid-thermal treatment with phosphoric acid followed by calcination at 200-800°C yielded calcium - manganese phosphate materials. Phase transformations were monitored via XRD, showing formation of crystalline phosphates at 200-600°C and a glassy phase at 800°C. The product synthesized at 600°C demonstrated the lowest water solubility (9.91 %), highest pore volume (0.175 cm3 g-1), and optimal sorption capacity for Ni2+ (0.2934 mg-eq g-1), which increased to 0.4697 mg-eq g-1 after 0.4 wt. % of HCl activation. The enhanced performance is attributed to the formation of low-solubility polyphosphates and well-developed porous structures. SEM confirmed porous morphology at 600°C and denser, glassy structure at 800°C. The synthesized material showed no toxic elements such as Pb, Cd, or As, making it suitable for environmental applications. The findings indicate that Zhairem tailings are a promising raw material for producing effective sorbents for heavy metal removal, especially after acid activation. The optimal product is the calcium-manganese phosphate synthesized at 600°C.
dc.identifier.doi10.59957/jctm.v61.i1.2026.21
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:105026873842en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1950
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105026873842&origin=inward
dc.titleFEASIBILITY STUDY INTO THE POSSIBILITY OF MANGANESE ORE ENRICHMENT WASTE USE FOR SORBENT MATERIAL DEVELOPMENT
dc.typeArticle
oaire.citation.issue1
oaire.citation.volume61
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