Brief introduction:

Ferro Silicon Slag is the remaining part after the production of ferrosilicon and other ferroalloy materials. It contains a certain proportion of silicon elements, which can significantly improve the strength, hardness and elasticity of steel, improve the permeability of steel, reduce the hysteresis loss of transformer steel.

Ferrosilicon slag is one of the main additives for smelting pig iron and casting iron. It is a kind of raw material with relatively good performance in price. Ferrosilicon slag can increase the temperature of molten iron and facilitate the discharge of steel slag. The silicon iron slag of our company has different grades with silicon content from30 to 62, we can produce according to customer requirements.

Ferrosilicon slag is the solid waste slag discharged when smelting ferrosilicon, which contains a certain amount of ferrosilicon, in order to avoid the waste of useful metal. Usually it needs to recover the ferrosilicon in ferrosilicon slag, so what can be recycled in ferrosilicon slag? Usually, ferrosilicon in ferrosilicon slag is recycled by means of gravity separation, using silicon and ferrosilicon slag density difference between points, choose, to recycle the ferrosilicon alloy, but there is also a kind of circumstance is in ferrosilicon slag no density difference between silicon and silicon slag, in this case, the gravity separation is no use, when the silicon content in ferrosilicon alloy by more than 70% ferrosilicon alloy and the waste residue is no apparent density difference between gravity separation at this time will not be able to effectively recycle in ferrosilicon, silicon slag and ferrosilicon alloy magnetic conductivity itself is very poor, the magnetic separation method is adopted Therefore, there is only one way to recycle the ferrosilicon in the slag, and not all the ferrosilicon slag can be recycled by the method of recycling.

Application:

* In the steel industry used as deoxidizer and alloying agents in order to obtain qualified chemical composition and guarantee the quality of steel, in the last stage of the steel must be solid, chemical affinity between silicon and oxygen is very big, therefore is silicon steel strong deoxidizer used in sedimentation and diffusion deoxidation in adding a certain amount of silicon steel, can significantly improve the strength of the steel hardness and elasticity, thus in smelting steel (0.40 1.75%) in bud silicon steel (including the SiO. 30-1.8%) Ferrosilicon is also used as an alloying agent for spring steel (containing SiO.40-2.8%) and silicon steel for transformers (containing Silicon 2.81-4.8%).

* Ferrosilicon slag can be used in the common casting of cast iron in slag smelting, etc. Ferrosilicon slag can improve the furnace temperature, increase the fluidity of molten iron, discharge slag effectively, increase the label, and improve the toughness and cutting ability of casting.

* In the process of stainless steel smelting by electric furnace, silicon slag is used as reducing agent to improve efficiency and output.

model	Chemical composition(%)
	Si	Al	S	P	C
	≥	≤
Silicon Slag 40	40.0	5.0	0.10	0.05	5.0
Silicon Slag 50	50.0	5.0	0.10	0.05	5.0
Silicon Slag 55	55.0	5.0	0.10	0.05	5.0
Silicon Slag 60	60.0	5.0	0.10	0.05	5.0
Silicon Slag 70	70.0	3.0	0.10	0.05	3.5
Silicon Slag 80	80.0	3.0	0.10	0.05	3.5
Silicon Slag 85	85.0	3.0	0.10	0.05	3.5
Silicon Slag 90	90.0	1.5	0.10	0.05	2.5