BERYLLIUM FLUORIDE - STARTING MATERIAL FOR THE PRODUCTION OF METALLIC BERYLLIUM AND THE SALT COMPONENTS FOR NUCLEAR REACTORS

摘要

The use of beryllium fluoride in nuclear power is studied: in melt with lithium fluoride as coolant and solvent for uranium, plutonium and thorium salts in high-temperature molten-salt nuclear reactors (ZhSR, MSR) as well as for making fluoroberyllate glass for regulating low neutron fluxes and welding special purpose articles. The existing methods of obtaining beryllium fluoride are described. A new method is proposed for obtaining high-purity fused beryllium fluoride from beryllium wastes by evaporating a saturated solution with fluorine-to-beryllium molar ratio 2.06-2.18.