FIELD: technology of inorganic compounds and preparation of pure scandium compounds. SUBSTANCE: scandium containing concentrate is dissolved in mineral acid, solution is treated with sulfuric acid to concentration of 260-400 g/cu. dm in the solution. The precipitate is separated from the solution, washed and dissolved in water. Low-soluble scandium compounds such as scandium hydroxide and/or oxalate are precipitated. EFFECT: more efficient preparation process. 3 cl, 2 ex, 2 tbl
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