Enrichment of 8-125 mm Colemanite Ores via NIR/CCD Optical Sorter

Abstract

In this study, 8-125 mm Simav Ana Damar (SAD), Simav Tali Damar (STD) and Tülü Sarı (TS) raw colemanite ores which extracted together with the minerals such as clay, tuff, limestone from the quarries of Bigadiç Boron Works Management of Eti Maden enriched by optical sorters used with near-infrared (NIR) and visible light (CCD) sources. In these works, the ore passing through the crushing, sieving and washing processes was fed to two optical sorters of 8-25 mm and 25-125 mm grain sizes and the 3.90-9.10 units enrichment was obtained in the ores fed at 22.10-39.30% B2O3 content. After enrichment made with over 93% yield, waste was found to be in the range of 2.20-11.10% B2O3 grade.

Keywords

• Optical sorting
• Colemanite
• Ore enrichment
• Near infrared
• Yield