|About this Abstract
||Part C-1: Hydrometallurgy 2018
||The Effects of Additives on the Leaching of Ilmenite Concentrate
||Khetho Daba, Shongwe Mxolisi, Ramakokovhu Munyadziwa Mercy
|On-Site Speaker (Planned)
Titanium dioxide extraction from Ilmenite using pyro-metallurgy method which involves melting ilmenite in the electric arc furnace for carbothermically reduced to produce cast iron and titanium slag. Titanium slag then upgrade to produce pure Titania of 98-99.5% grade by sulphate or chloride process. This method described above requires many processes which demand high capital investment and gases released are dangerous to environment. On this project hydrometallurgy of leaching is propose to be utilized for producing TiO2 of high grade (TiO2-99.978%). This study focus on the effects of additives such as Iron, phosphate, fluoride and etc. on dissolution of Iron (and other impurities) from ilmenite. In addition, the other leaching parameter which play significant role such acid concentration, temperature, solids/acid ratio, agitation and leaching residence time will be studied and optimized. This hydrometallurgy method for producing pure TiO2 from ilmenite doesn’t require many processes.
||Planned: At-meeting proceedings