Study of the Thermal Method for Removing Fluorine from Products of Sulfuric Acid Leaching of Beryllium Ores at UMP JSC

R. Yu. Zinyuk, A.G. Balykov, I.B. Gavrilenko, A.M. Shevyakov. IR spectroscopy in the inorganic technology. Leningrad: Khimiya; 1983. A. Smith. Applied IR spectroscopy. Moscow: Mir; 1982. P.M. Nesterenko, E.P. Nesterenko, A.V. Ivanov. Modified surfaces of silicates by aluminum oxide. Vestnik Mosk. univ. Khimiya 2001; 42 (2); 106-108. A.N. Lazarev. Vibrational spectra and structure of silicates. Leningrad: Nauka; 1968. T.G. Balicheva, O.A. Lobaneva. Electronic and vibrational spectra of inorganic and coordination compounds. Leningrad: Izd-vo Leningradskogo univ.; 1983. I.I. Plyusnina. Infrared spectra of minerals.Moscow: Izd-vo Mosk. univ.; 1977. OMNIC //Database of Infrared Spectra, Thermoscientific Corp. Yu.I. Kharitonov. Vibrational spectra in inorganic chemistry. Moscow: Nauka; 1971. A.I. Boldyrev. Infrared spectra of minerals. Moscow: Nedra; 1976. V.F. Barabanov. Modern physical methods in geochemistry. Leningrad: Izd-vo Leningradskogo univ.; 1990.