Evaluation of the Surajdewal sand for the glass industry

The raw sand available at Surajdewal was examined chemically and petrographically and some beneficiation work was carried out to investigate the suitability of the sand for the glass industry. The sand, as such, corresponds to Grade 3 of IS: 488-1963. During beneficiation it was observed that washing with water lowered the iron content, bringing the sand almost equivalent to Grade 2, and on leaching with 1 H2S04 the sand was found to be in conformity with Grade 1. The coarseness of the sand was reduced through grinding and this led to significant improvement in particle size distribution, ali preferred by the glass industry. Trial melting wa11 carried out with untreated and different grades of treated sands. The results were found to be encouraging for utilization in the glass industry. © 1982 Taylor & Francis Group, LLC