Alternative technological approach for synthesis of ceramic pigments by waste materials recycling

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creativework.keywordsCeramic pigments, Chromspinelides, Industrial wastes
creativework.publisherSociedad Espanola de Ceramica y VidrioVitruvio 8MadridE-28006en
dc.contributor.authorDoynov M.
dc.contributor.authorDimitrov T.
dc.contributor.authorKozhukharov S.
dc.date.accessioned2024-07-10T14:27:03Z
dc.date.accessioned2024-07-10T14:48:31Z
dc.date.available2024-07-10T14:27:03Z
dc.date.available2024-07-10T14:48:31Z
dc.date.issued2016-01-01
dc.description.abstractAlternative technological approach is proposed enabling utilization of raw materials from an oil refinery, such as waste guard layers from reactors. Reagent grade and purified MgO, Cr2O3, Fe2O3, and nitric acid (HNO3), were used as additional precursors. The homogeneous mixtures obtained were formed into pellets and sintered at different temperatures. The main phase was proved by X-ray phase analysis (XRD) and compared to ICPDS database. The main phase in the ceramics synthesized was solid solution of spinel MgAl2O4 and magnesiochromite. These minerals are classified as chromspinelide MgCr1.2Al0.4Fe0.4O4 and alumochromite MgCr1.6Al0.4O4. Additional SEM observations, combined with EDX analysis were performed, evincing agglomeration at lower temperatures, followed by agglomerate crumbling, at elevated calcination temperature. The complete transformation of initial precursors into the final ceramic compounds was found to occur at 800°C - 1 h. The ceramic samples synthesized had high density of 1.72-1.93 g/cm3 and large absorption area - 32.93% which is probably due to the high porosity of the sample.
dc.identifier.doi10.1016/j.bsecv.2016.01.002
dc.identifier.issn2173-0431
dc.identifier.issn0366-3175
dc.identifier.scopusSCOPUS_ID:84963864718en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/372
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84963864718&origin=inward
dc.titleAlternative technological approach for synthesis of ceramic pigments by waste materials recycling
dc.typeArticle
oaire.citation.issue2
oaire.citation.volume55
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