INTRODUCTION

Rescon for three decades, continues its journey towards excellence. Today it is a household name in steel insulation. Naturally available agro waste- Rice husk duly calcined converts the product into amorphous silica with some residual carbon. Combustion with excessive or insufficient oxygen thus controls the residual carbon content to the specified limit of the user.

RHA is used as insulation product for liquid metal over last many decades. Around 1970s it came to the knowledge that humans exposed to such environment at elevated temperature zone are usually becoming victims of the dreaded disease SILICOSYS. The crystalline silica cracks explosively at high temperatures thus creating micronized silica particles which remain suspended in the atmosphere. Humans exposed to such environment inhales dust which settles on their lungs and cannot be absorbed by the body. As a result the oxygen exchange potential for the body reduces thus causing silicosis. As a public demand and social responsibility RESCON started a rigorous research work looking into various options with the help of scientists and laboratory of CENTRAL GLASS AND CERAMIC RESEARCH INSTITUTE. After 2 years RHAN was born in the lab. After that it took nearly 4 years to scale it up to commercial production at a market viable price.