... , such as the beneficiation of abrasive, refractory and ceramic raw material (i.e., alumina, silica, carbide, magnesite, ... high purity quartz cleaning, graphite upgrading, manganese ore beneficiation, bauxite upgrading, diamond ore beneficiation, selective separation of garnet / ilmenite ... silicates from limestone or magnesite, glass raw materials cleaning silica sand, quartz, feldspar, dolomite, ...