Gelişmiş Arama

Basit öğe kaydını göster

dc.contributor.authorNasymov, Golibsho
dc.contributor.authorGaibullaeva, Zumrat
dc.contributor.authorAy, Nuran
dc.contributor.authorSmirnova, Alevtina
dc.date.accessioned2019-10-21T21:12:41Z
dc.date.available2019-10-21T21:12:41Z
dc.date.issued2019
dc.identifier.issn0304-386X
dc.identifier.issn1879-1158
dc.identifier.urihttps://dx.doi.org/10.1016/j.hydromet.2018.11.012
dc.identifier.urihttps://hdl.handle.net/11421/21434
dc.descriptionWOS: 000458094100020en_US
dc.description.abstractLocated in the north of Tajikistan, the Koni Mansur is a rich polymetallic deposit that besides other metals has high concentration of lead-containing mineral galena. The hydro metallurgical extraction of lead from the Koni Mansur lead sulfide (galena) mineral in acidic media, its chemical composition and morphological properties in comparison to the Balya deposit in Turkey are reported for the first time. Energy dispersive X-ray fluorescence spectrometry was applied for chemical analysis of galena, while mineralogical characterization before and after lead acidic extraction was performed by XRD. The nitric acid concentration, temperature, duration of the extraction process, and the particle size distribution before and after extraction have been evaluated. The amount of lead in solution after extraction and solid-liquid phase separation was determined by the flame atomic absorption spectroscopy (FAAS). The particle size distribution before and after lead extraction revealed no significant changes. Assuming spherical shape of the particles, the Shrinking Core Model (SCM) used for kinetic study of the lead extraction allowed to define the activation energies and changes in the corresponding reaction mechanisms. Specifically, the activation energy at 293-318 K (12.4 kJ/mol) was significantly lower than at higher temperatures (318-338 K) reaching similar to 46.778 kJ/mol which indicates the corresponding change in the extraction mechanism.en_US
dc.description.sponsorshipFulbright and Erasmus Mundus Scholarship Programsen_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial support from the Fulbright and Erasmus Mundus Scholarship Programs.en_US
dc.language.isoengen_US
dc.publisherElsevier Science BVen_US
dc.relation.isversionof10.1016/j.hydromet.2018.11.012en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectKoni Mansur Depositen_US
dc.subjectGalenaen_US
dc.subjectLead Extractionen_US
dc.subjectShrinking-Core Modelen_US
dc.titleChemical, morphological, and kinetic study of lead extraction from the Koni Mansur polymetallic depositen_US
dc.typearticleen_US
dc.relation.journalHydrometallurgyen_US
dc.contributor.departmentAnadolu Üniversitesi, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümüen_US
dc.identifier.volume183en_US
dc.identifier.startpage159en_US
dc.identifier.endpage165en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.contributor.institutionauthorAy, Nuran


Bu öğenin dosyaları:

Thumbnail

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster