Kinetics of sulfuric acid breakdown of beryllium raw material activated by fusion with sodium carbonate
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The kinetics of sulfuric acid breakdown of a mixture of beryl and bertrandite–phenakite–fluorite concentrates, activated by fusion with sodium carbonate, was studied. The apparent activation energy of the reaction of the granulated fusion cake with sulfuric acid was determined (E app = 9.1 kJ mol–1). This value of E app is typical of diffusion-controlled processes and suggests that the process is controlled by the rate of diffusion of acid molecules to the reaction surface through the layer of the forming reaction products.
KeywordsBeryllium Apparent Activation Energy Sulfation Sodium Carbonate Leaching Residue
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- 1.Redkie i rasseyannye elementy. Khimiya i tekhnologiya: Uchebnik dlya vuzov (Rare and Trace Elements. Chemistry and Technology: Textbook for Higher Schools), Korovin, S.S., Ed., Moscow: Mosk. Inst. Stali i Splavov, 1996, book1.Google Scholar
- 2.RF Patent 2351539, Publ. 2009.Google Scholar
- 3.Samoilov, V.I., Kulenova, N.A., and Borsuk, A.N., Metallurg, 2008, no. 12, part 1, pp. 65–68.Google Scholar
- 4.Samoilov, V.I., Kulenova, N.A., and Borsuk, A.N., Metallurg, 2009, no. 1, part 2, pp. 63–65.Google Scholar
- 5.Vol’dman, G.M. and Zelikman, A.N., Teoriya gidrometallurgicheskikh protsessov (Theory of Hydrometallurgical Processes), Moscow: Intermet Inzhiniring, 2003.Google Scholar