Abstract: This invention relates to products obtained from sugar mill boiler ash, methods of using such products as a filtration material, and/or adsorbent material and methods of manufacturing such products. More specifically, this invention relates to filtration materials, with either a low or relatively high activated carbon content derived from the combustion of sugar cane residues whose characteristics and properties can be preselected and controlled to provide predetermined performance characteristics, and methods of obtaining such products through processing techniques which control the properties of such products. The invention also provides adsorbent materials of very high carbon content useful for applications other than a filter medium.

Abstract: A product adapted for use as a filtration material, absorption material, or as a pozzolanic material in the production of concrete, is produced from unprocessed sugar mill boiler ash by crushing and optionally screening the unprocessed ash and then grinding the crushed ash. Alternatively, unprocessed ash may be screened to remove particles of a size greater than desired. The grade of the product may be controlled by removing fine particulate material from the ground ash and then recombining the separated materials in desired proportions.