BARYUM VE MAGNEZYUM İÇEREN KATILARIN KARBONAT YÜKLÜ ÇÖZELTİLERLE ETKİLEŞİMİ

Year 2022, , 211 - 219, 18.08.2022

İlhan Ehsani , Arman Ehsani , Abdullah Obut

https://doi.org/10.31796/ogummf.1022705

Abstract

Bu çalışmada, baryum (Ba(OH)2·8H2O ve BaSO4) veya magnezyum (Mg(OH)2 ve MgSO4·7H2O) içeren katıların, yerel bir simitsonit (ZnCO3) cevher örneğinin sulu sodyum hidroksit çözeltilerinde liçi sonrasında oluşan çözünmüş karbonat yüklü çözeltilerle etkileşimi, bu yüklü çözeltilerdeki çözünmüş karbonatın (BaCO3 veya MgCO3 olarak) uzaklaştırılması amacıyla, X-ışını kırınımı analizleri kullanılarak incelenmiştir. Çözünmüş karbonat yüklü çözeltilerin Ba(OH)2·8H2O ve MgSO4·7H2O katılarıyla etkileşimini takiben, sırasıyla, tek faz olarak BaCO3 ve ana faz olarak Mg(OH)2 içeren katıların oluştuğu gözlenmiştir. Diğer taraftan, BaSO4 ve Mg(OH)2 katılarının yüklü çözeltilerle herhangi bir etkileşime girmediği ve dönüşmeden kaldıkları belirlenmiştir. Bununla birlikte, çalışılan tüm deneysel koşullar altında, baryum veya magnezyum zinkat fazlarına dönüşümün olmadığı da ortaya çıkarılmıştır. Bu çalışma kapsamında, toprak alkali baryum ve magnezyum içerikli katıların çözünmüş karbonat yüklü çözeltilerle etkileştirilmeleri sonrasında ilgili karbonat fazlarına dönüşüm özellikleri, bu katıların çözünürlükleri dikkate alınarak tartışılmıştır. Ayrıca, seçilmiş deneyler sonrasında elde edilen bazı dönüşmüş katıların kızılötesi spektrumları ve taramalı elektron mikroskop görüntüleri de bu çalışma kapsamında sunulmuştur.

Keywords

Baryum hidroksit, Baryum sülfat, Doğrudan dönüşüm, Magnezyum hidroksit, Magnezyum sülfat

Thanks

Yazarlar, desteğinden dolayı, Yükseköğretim Kurulu Öğretim Üyesi Yetiştirme Programı (ÖYP)’na teşekkür eder.

INTERACTION OF BARIUM AND MAGNESIUM CONTAINING SOLIDS WITH CARBONATE LOADED SOLUTIONS

Abstract

In this study, the interaction of barium (Ba(OH)2·8H2O and BaSO4) or magnesium (Mg(OH)2 and MgSO4·7H2O) containing solids with dissolved carbonate-loaded solutions formed after leaching of a local smithsonite (ZnCO3) ore sample in aqueous sodium hydroxide solutions was investigated using X-ray diffraction analyses for the removal of dissolved carbonate (as BaCO3 or MgCO3) in these loaded solutions. It has been observed that solids containing BaCO3 as a single phase and Mg(OH)2 as a main phase are formed, respectively, following the interaction of dissolved carbonate-loaded solutions with Ba(OH)2·8H2O and MgSO4·7H2O solids. On the other hand, it was determined that BaSO4 and Mg(OH)2 solids did not interact with the carbonate-loaded solutions and remained unconverted. However, no conversion to barium or magnesium zincate phases was also found under all studied experimental conditions. Within this study, the conversion properties of alkaline-earth barium and magnesium-containing solids to their corresponding carbonate phases after interacting with dissolved carbonate-loaded solutions were discussed considering the solubilities of these solids. In addition, infrared spectra and scanning electron microscope images of some converted solids obtained after selected experiments were also presented within the scope of this study.

Keywords

Barium hydroxide, Barium Sulfate, Direct conversion, Magnesium hydroxide, Magnesium sulfate

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