CTL Metallurgical Process
Argex, in collaboration with the highly skilled metallurgists at Process Research Ortech, has developed a proprietary mineral extraction process that allows for the production of high purity (or 99.8% pure) pigment grade TiO2 product which can be sold to the end-users in the paint, plastic and coating industries.
The process is unique because of its ability to produce high purity TiO2, Iron and V2O5 through a single process directly from the ore material. The equipment used in all parts of the process is known and readily available. The innovation of the process lies in how the equipment is used and how the solvents and temperatures are properly balanced. The process operates at atmospheric pressure, thus avoiding the need to handle chemicals at very high temperatures.
The process is also environmentally friendly due to its high energy efficiency, low emissions and its closed-loop design which uses relatively low levels of hydro chloric acid that is regenerated after use. The process produces minimal inert tailings from the La Blache ore deposit. Ultimately, these tailings could be used by the local construction industry for raw material.