Review of TiO_2-Rich Materials Preparation for the Chlorination Process

摘要

Chlorination process is a clean and efficient way to manufacture of titanium dioxide pigment. However, the limited natural rutile promotes the investigation on the upgrading of ilmenite ore into titanium-rich materials. The principle and producing situation of some production methods of TiO_2-rich materials preparation for the chlorination process are discussed. The advantage and disadvantage of the Reduction smelting produces titaniferous slag, Carbothermal reduction-nitridation, Acid leaching, and Reductive leaching produce synthetic rutile are also summed in this paper. This paper presents a review of these technologies and carbothermal reduction-nitridation method is recommended to deal with Panzhihua ilmenite ore to meet the needs of the titanium dioxide pigment production by chlorination process.