Heat storage composition containing magnetite, silica as alkali earth silicate, hematite and mineral fibers useful, especially in powder form, as storage blocks for night storage heaters for domestic houses and other buildings

摘要

Heat storage composition containing magnetite and silica of composition (wt.%):magnetite (49-90), 60-70% saturated alkali earth silicate (7-11), micro silica (2-4), Al salt (0.5-7.5), mineral fibers (0.2-0.5), where the composition is silicate bonded.