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The growing demand for refractory rare metals, such as niobium, necessitates the development of efficient extraction methods from alternative sources, including industrial waste from metallurgical plants enriched with niobium and zirconium. This study investigates the solvent extraction of niobium from a fluoride-sulfuric acid solution obtained by leaching rare-metal-containing waste from titanium-magnesium production. The efficiency of niobium recovery using a trialkyl phosphine oxide-based extractant (Cyanex 923...

The physical and chemical properties of fine sock filter dusts have been studied. It has been demonstrated that a part of the titanium is bound in hard-to-open anosovite that can be enclosed in a shell of amorphous silicon dioxide. Anosovite can be attributed to the phase that is radiographically characterized as the system Fe = Mn - TiO. It is noted that some of the anosovite particles are in a shell of silicon and zinc oxides, and a part is in a shell of silicon, zinc, and lead oxides. The silicate base of the e...

The production of a titanium sponge obtained by the reduction of titanium tetrachloride by magnesium is accompanied by the formation of a huge amount of chloride waste. They are annually stored in landfills - storages, polluting the environment. Consequently, one of the topical problems of titanomagnesium production is the processing of chloride waste. In Kazakhstan, there are a variety of sources of chloromagnesium raw materials for the electrolytic production of magnesium, but they are not used in the magnesium ...