Adding molybdenum to steel can make the steel have a uniform fine-grained structure, improve the hardenability of the steel, and help eliminate temper brittleness. In high-speed steel, molybdenum can replace part of tungsten. Molybdenum, together with other alloying elements, is widely used in the production of stainless steel, heat-resistant steel, acid-resistant steel and tool steel, as well as alloys with special physical properties. Molybdenum is added to cast iron to increase its strength and wear resistance.
Ferro Molybdenum Lumps manufacture
Oxidation roasting of molybdenum concentrate
Molybdenum concentrate contains about 75% MoS. Because of its high sulfur content, it cannot be used to directly smelt ferromolybdenum and produce molybdenum oxide blocks, so it must be oxidized and roasted to remove sulfur before it can be used. It is customary that the molybdenum concentrate before roasting is called raw molybdenum concentrate, and the molybdenum concentrate after roasting is called cooked molybdenum ore or molybdenum roasted sand.
Low Carbon Femo manufacture
Before adding concentrate to the roasting furnace, the ingredients should be prepared according to the molybdenum content and impurity content, and should be fully mixed. The error of the molybdenum content in the prepared ingredients should be within 0.2%, Mo≥45%, Pb≤0.8%, Cu≤ 0.6%, SiO2≤12%, CaO≤3%, H2O≤4%.
