Beneficiation of waste-sand from Ranong Kaolin production for ceramics Industries

Abstract

The wasted sand from Kaolinite ore processing plant in Hadsompaen deposit, Ranong province. Nowadays, Kaolinite-wasted sand used for general construction only. This research aimed to beneficiation to improving qualities for ceramics industries by studying mineralogy, grinding, sizing, bleaching, flotation and electromagnetic separation. The study found that, the sand dressed by magnetic separation with Frantz Isodynamic Magnetic Separator is the best way to process Kaolin-wasted sand in case of SiO₂ from 79.83% to 98.8 % able to use instead of Silica sand in ceramics industries. However, size and distribution of sand are significant factor for Silica sand industries.