The glass formation, crystallization behavior and structure were investigated in the ZnO-Al2O3-SiO2 system. boundaries of forming region are defined, indicating absence glasses along ZnO-SiO2 binary role Al to improve formation. has been clarified for representative compositions showing first willemite near a metastable zinc aluminosilicate solid solution higher Al2O3/SiO2 content. Gahnite appe...

Environmental issues regarding Cr6+ formation lead to replacing chrome-containing refractories with greener alternatives. MgO-containing compositions have been extensively investigated for this purpose, however, few studies evaluated the likelihood of using other chemical elements as inducers spinel-like phase in refractory castables. In study, addition zincite alumina-based castables was and c...

Millions of tons bottom ash (BA) is generated from incineration industrial and municipal solid waste each year within EU. The magnitude leaching metals like Cu Zn critical for hazard risk assessment these ashes. Although speciation a key factor to understand predict metal leaching, in BA not well known. In this study six separated carbonized were investigated by combination X-ray absorption spe...

The exploitation of mine waste materials as secondary resources requires in-depth mineralogical analyses, with metal deportment being particular relevance for recovery. Using a combination the Scanning Electron Microscope (SEM)-based Mineral Liberation Analyser (MLA) and Probe Micro-Analyser (EPMA) methods, lead zinc in historic Plombières site (East Belgium) was investigated. comprises four di...

Air pollution control (APC) residues from energy-from-waste (EfW) are alkaline (corrosive) and contain high concentrations of metals, such as zinc and lead, and soluble salts, such as chlorides and sulphates. The EPA 3050B-extractable concentrations of 66 elements, including critical elements of strategic importance for advanced electronics and energy technologies, were determined in eight APC ...