Rice husk ash is used in the production of special high-quality steel with low thermal conductivity and density. ZRSH is added to the heat-insulating mixture to cover the mirror of the metallurgical ladle, which additionally ensures compliance with the temperature regime of continuous casting processes. Ash is used as a filler in polymers and rubbers for the production of car tires, as an adsorbent for heavy metals for wastewater treatment. In the pharmaceutical industry, ash is added to stabilize emulsions, as an agent, thickener and suspending gel in the preparation of semi-solid products, in perfumery, RHA is added as a filler for toothpastes and creams.
Equally important is the use of rice husk ash as a natural source of high performance amorphous silica.
