Scandium metal production

Ore processing

Industrial production of scandium is a multistage process of reduction of fluorides or chlorides followed by distillation in a vacuum. The purity of the initial raw material for processing depends on the quality of the pyro-metallurgical or hydro-metallurgical treatment of the oxides (scandium beryl, cassiterite, fluorite), as well as minerals such as tortveitis and jervisite. Of industrial importance are the following ores: aluminum bauxite, uranium ores, zircon wolframite, ilmenite .

Metal production

Biotechnology.The processing of industrial waste begins with the stripping of the feedstock and the leaching of scandium, followed by the separation of the solid and liquid phases. The first stage: dissection of raw materials and leaching is carried out using a biocomplex of iron oxidizing bacteria. After separation of solid and liquid phases the liquid phase is directed to obtaining ScF. The technical advantage of this method is considered to be a significant reduction of sulfuric acid consumption for raw material stripping and scandium leaching and improvement of the production environment.

The hydrometallurgical method of scandium extraction from slags, ash residues of coal, tailings of metal ores enrichment is known. This method implies fine crushing of the material and its further decomposition in a heated solution of sulfuric acid, followed by washing of the residue with water or hydrochloric acid solution at a temperature of 20-50°C,

Furnizor

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