Abstract:In this study, it is aimed to determine the amount of Ti (titanium) in waste ash samples taken from galvanizing factories by using flame atomic absorption (FAAS). Various time periods and different solvent mixtures were examined by using ultrasound-assisted extraction for digestion of zinch ash which taken from various processes of galvanizing metal sheet or pipe. The best solvent mixtures for Ti metal in galvanized waste was found HCl:
“…The concentration of Ag (328.1 nm) and Ti (363.4 nm) were determined using an Atomic Absorption Spectrophotometer (AAS, CTA-3000) following the reaction in an aqueous solution to ascertain the chemical stability of Ag 3 PO 4 /TiO 2 . The measurements made using this device's findings show that the concentration of Ag was 4.5 mg/L and Ti was below the AAS detection limit, indicating that this nanocatalyst has the necessary chemical stability [ 68 , 69 ]. Fig.…”
“…The concentration of Ag (328.1 nm) and Ti (363.4 nm) were determined using an Atomic Absorption Spectrophotometer (AAS, CTA-3000) following the reaction in an aqueous solution to ascertain the chemical stability of Ag 3 PO 4 /TiO 2 . The measurements made using this device's findings show that the concentration of Ag was 4.5 mg/L and Ti was below the AAS detection limit, indicating that this nanocatalyst has the necessary chemical stability [ 68 , 69 ]. Fig.…”
“…Bununla birlikte tedarik riski bulunan bu elementler için ikame element arayışları da halen devam etmektedir [5]. NTE'ler, oksit, silikat, karbonat, nitrat, fosfat, hidrat, klorür ve florür gibi formlarda, yüksek saflıkta metalik formlarda veya mischmetal formlarında üretilip kullanılmaktadır [6][7][8][9]. Bu elementler kullanılarak malzemelerin; mekanik, kimyasal, elektrik ve termal özellikleri belirgin bir şekilde geliştirilebilir.…”
Mines have always had an indispensable importance in the history of humankind. Historically, a direct relationship can be established between mining activities and the level of development and thus the level of well-being in societies. Rare earth minerals are one of the strategically known raw materials in the world. Following enrichment and purification processes, it is identified by different names such as rare earth elements (REEs), rare earth metals (REMs) and rare earth oxides (REOs). The discovery of REEs and its technological developments have an impact on almost all aspects of our lives. Rare earth materials have unique physical and chemical properties. REEs are used as components in high-tech applications including magnets, catalysts, metal alloys, electronic devices, lasers, glass-ceramics, rechargeable batteries, medical imaging, telecommunications, lighting, and new generation semiconductor devices. In addition, some important REEs elements such as samarium (Sm), neodymium (Nd), dysprosium (Dy), praseodymium (Pr) and erbium (Er) are used in the defense industry and renewable energy technologies (wind and solar energy). The demand for this raw materials used in the critical technologies will largely increase in the future. In this article, the important applications, usage areas and critical importances of rare earth elements have been extensively discussed.
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