ECO-FRIENDLY PROCESS FOR THE PRODUCTION OF SYNTHETIC RUTILE FROM ILMENITE

摘要

The present Invention discloses an eco-friendly process for the production of high grade synthetic rutile from llmenite and saleable Iron oxide as byproduct by leaching of the reduced ore with dilute acids. According to the present Invention the llmenite ore is beneficiated by the steps of pretreatment of the ore by oxidation in the presence of air, reduction at the temperature below 1000°C and leaching of reduced llmenite with dilute solution of ammonium chloride in aeration and consequently with sulphuric acid of lower concentration. According to this process llmenite can be beneficiated without the use of magnetic separation procedure. The high grade beneficiated llmenite achieved by the above said economic process, having significant TiOa content of 90-92% recovered from the processed mixture by suitable methods such as filtration and calcination.