National Nuclear Center of the Republic of Kazakhstan

Elemental Composition, Sources, and Health Risks of Ambient PM2.5 in Ust-Kamenogorsk (Oskemen) and Pavlodar, Kazakhstan

Atmospheric pollution by fine particulate matter (PM2.5) poses a severe threat to public health in industrial regions of Kazakhstan, such as Ust-Kamenogorsk and Pavlodar, where a sharp continental climate exacerbates toxic element accumulation. This study aimed to compare the ele...

Development and Testing of an Experimental Electroslag Remelting Facility for Processing Radioactive Metal Waste

Modern nuclear energy faces the problem of the accumulation, storage, and management of radioactive waste. For radioactive metal waste (RMW), one of the main tasks is to reduce its volume, carry out partial or complete decontamination, and convert it into a compact and stable for...

Integration of Nickel Adsorption Procedures into the Hydrometallurgical Processing of Laterite Ore: Comparative Performance of Two Chelating Ion-Exchange Resins with Insight into the Adsorption Mechanism

Selective Ni(II) recovery from polymetallic sulfate leachates is challenging because of competition from accompanying metal ions, particularly Mg(II). This study systematically evaluated selective Ni(II) recovery using commercial chelating ion-exchange resins and assessed their a...

Progressive Melt Fractionation as the Primary Control on the Formation of Rare-Metal Pegmatites: Evidence for Continuous Granite–Pegmatite Evolution in the Central Kalba Ore District, Eastern Kazakhstan

Rare-metal pegmatites of the Kalba–Narym belt (Eastern Kazakhstan) represent an important source of Li, Cs, Ta, Nb, Be, and associated critical metals. Despite extensive geological investigations, the relationships between granites, pegmatites, and late-stage alteration products...