Abstract: A process for the production of an alkali dispersion includes charging a mixing vessel with a solid alkali metal, a liquid which is inert to the alkali metal and a grinding media. The vessel is connected to a vibrating driver which is vibrated until the alkali metal is ground by the media finely enough to form a dispersion in the liquid. Preferably the driver is a resonant driver which is vibrated at the resonant frequency of the driver. Mineral oils or other liquids containing organohalides such as PCBs can be used as a liquid which is treated during the grinding by the organohalide reacting with the alkali metal.