ferro molybdenum

The most important use of molybdenum is used to refine alloy steel, due to molybdenum can reduce the eutectic decomposition temperature of steel, expand the quenching temperature range of steel, never affect the hardened hardening depth of steel. Molybdenum often uses with other elements, such as chromium, nickel, vanadium, etc., so that steel has a uniform crystalline structure, improves the strength of steel, elasticity, abrasion resistance, and impact strength. Molybdenum is widely used in refining structural steel, spring steel, bearing steel, tool steel, stainless acid steel, heat-resistant steel and magnetic steel, and other steels. In addition, molybdenum is applied to alloy cast iron, which can make the gray iron particle size becomes small, and improve the performance of the gray iron at high temperatures and improve its wear resistance.

There are two methods for producing molybdenum iron, one is to produce high carbon molybdenum iron-based electric furnace carbon reduction block, the other is to produce a low-carbon molybdenum iron-based furnace metal thermal reduction method.

Electric furnace carbon reduction stream method: The molybdenum oxide and the carbonaceous reducing agent were placed in a single-phase or three-phase electric furnace in the carbonaceous 

furnace lining.

Furnace metal thermal reduction method (generally called silicon heat reduction method): This is the simplest, most economical, and most widely used production method of molybdenum iron. 

This way is used silicon instead of carbon as a reductant of molybdenum oxide, silicon is added in the form of ferrosilicon, the heat released by the reduction reaction can melt the produced alloy and slag, and thus does not need to add the heat source from the outside during production, it is easy to achieve the spontaneous progression of the reaction.

The most important task of molybdenum iron production is to achieve higher molybdenum recovery.

(1) Recycling of molybdenum iron particles in slag. Generally, the slag having higher gum molybdenum is returned to smelting, and the slag containing a large number of metal particles 

should be enriched and recovered by the magnetic selection after pulverizing.