Often during production precision alloys, structural and electrical engineering steels, cast irons and other materials use manganese (mainly in the form of a charge). However, manganese ore mined in Russia contains a large amount of phosphorus, which has a negative impact on the physical and mechanical properties of the products manufactured.
Specialists from the MISIS University of Science and Technology have found a way to reduce the percentage of phosphorus in manganese concentrate. To do this, they purged the ore with carbon monoxide at a temperature of 1600-1630 ℃. They also found that the amount of phosphorus removed depends on the mass ratio of basic oxides to acidic oxides in the mixture used. Thanks to their development, researchers plan to introduce depleted or substandard manganese ores into the production of high-quality steels. Up to 20-40% of phosphorus can already be removed from them, and the resulting material can be added to conventional concentrates.
