VERWENDUNG EINES AUS EISENZUNDER HERGESTELLTEN SPEICHERSTEINS FÜR EIN ELEKTROSPEICHERHEIZGERÄT

摘要

Production of a storage stone comprises: (i) preparing an iron scale having a prescribed particle distribution; (ii) mixing with a binder; and (iii) molding a stone from the mixture produced. An Independent claim is also included for a storage stone produced containing more than 50% iron scale. Preferred Features: The iron scale is de-oiled in the first step. The binder is ceramic. The storage stone contains 85-99 wt.% iron scale and 1-15 wt.% binder.