Wet grinding

In order to control the release of hydrogen from POWERPASTE effectively, it is particularly important to ensure precise dosing of the reactants, thorough mixing of the magnesium hydride and water, and a rapid hydrolysis reaction of the magnesium hydride powder despite the formation of Mg(OH)2 surface layers. These requirements are best met technically in the form of a paste-like substance. To achieve a homogeneous paste-like mass with defined flow properties, the magnesium hydride powder is ground in a stirred ball mill together with a carboxylic acid ester and small amounts of a metal salt to form a paste-like substance, with the magnesium hydride solid content being approximately 70 vol.%.