Verfahren zur Herstellung von pulverförmigen Alkali- bzw. Erdalkalimetallhydriden

摘要

1319331 Controlled addition of liquid metals to a reactor DYNAMIT NOBEL AG 2 Sept 1970 [3 Sept 1969] 42066/70 Addition to 1309806 Heading C1A An alkali metal or alkaline earth metal hydride is prepared by reacting hydrogen under pressure with a liquid alkali metal or liquid alkaline-earth metal in a pressure tight reaction vessel and in the presence of an alkali metal hydride or alkaline earth metal hydride initially produced in or introduced into the vessel whose contents are agitated during the reaction; the liquid alkali or alkaline earth metal hydride and hydrogen being added to the reaction vessel in stoichiometic amounts and at the rate at which they react to form the hydride so that the pressure remains constant during the reaction, the addition of the liquid alkali or alkaline earth metal to the vessel being effected by the pressure of a gaseous medium (e.g. nitrogen or argon) inert to the liquid metals and their hydrides or by the pressure of gaseous hydrogen, the rate of addition of the liquid alkali metal or liquid alkaline earth metal being controlled by controlling the pressure of the gaseous medium or of the gaseous hydrogen.