Patent ID: 6451106
Filing Date: 2002-09-17
Classification: C01D,C01F,C30B

Abstract:
A method of preparing a fluoride comprising:melting a fluoride of an alkali metal or alkaline-earth metal to provide a molten mass of said fluoride in the absence of moisture and oxygen; allowing said melted molten mass to flow through at least one orifice emerging into a space in the absence of moisture and oxygen; a consequent difference in temperature being maintained between the temperature of said melted molten mass and that of said space into which said melted molten mass is introduced, so that at the outlet of said orifice(s), said melted molten mass becomes divided into droplets; allowing the said droplets to fall along the vertical axis of said space in the absence of moisture and oxygen, causing their progressive solidification; recovering the totally solidified droplets in the form of beads.