25-40% Al2O3 Content Calcium Silicate Slag for Metallurgy Refining Process Improvement

Calcium silicate,Premelted refining calcium silicate slag

Refining Slag is used as liquid steel scavenger.It has strong deoxidizing desulfurization effect and it can reduce the content of oxygen and impurity,The process is that many kinds of refining material is stired equably and then is fused under high temperature.The main resultant is calcium aluminate 12CaO·7Al2O3 with low melting point and buoy easily features.It can react with Oxygen and sulfur in the liquid steel,and adsorb reaction resultant to make liquid steel cleansed.Learning from our clients using this products,original sulfur content is 0.03% in the steel,added content of steel is 5-12kg,it will make the final sulfur content 0.0052%, desulfuration rate is above 80%.

Calcium silicate,Premelted refining calcium silicate slag

Refining Slag Typical Feature:
1.Homogeneous composition,low melting point (1300°C),quick melting speed,shorten the melting time,reduce dust pollution.
2.Proper slag viscosity and liquidity,it will promote the desulfuration reaction.
3.Quick desulfuration(>60%) can restrain rephosphorization and adsorb impurity effectively,
4.Improve ladle lining protection.
5.Nonabsorbency make storage and transportation easy.
Refining Slag Characteristics:
1. Uniform components;
2. The low melting point, melting speed, good fluidity, be helpful for desulfurization efficiency:
3. Do not need to slagging process, it can greatly shorten the smelting of time.
4. Mainly used in high quality steel smelting process of desulfurization, heat preservation functions.

Calcium silicate,Premelted refining calcium silicate slag

Refining Slag Specification

PSL-1
CaO 48-52%,Al2O3 38-42%,SiO2 3-5%,TiO2 2%max,Fe2O3 1.5%max,MgO 1.5%max, 5-50mm,90%min

PSL-2
CaO 49-54%,Al2O3 36-41%,SiO2 3-5%,TiO2 2%max,Fe2O3 1.5%max,MgO 1.5%max,5-50mm,90%min

PSL-3
CaO 45-55%,Al2O3 31-38%,SiO2 8%max,TiO2 2%max,Fe2O3 1.5%max,MgO 4-8%,5-50mm,90%min

PSL-4
CaO 45%,Al2O3 22%,SiO2 8%max,TiO2 1.5%max,Fe2O3 1.5%max,MgO 4-8%,5-50mm,90%min
Size:0--10mm ,10--100mm or as per your request
In case you purchase other specification and grain size of premelting refining slag,we’ll be pleasure to be suggested more.

Calcium silicate,Premelted refining calcium silicate slag

Refining Slag Packaging:
1) Net weight 25kg per units (plastic woven bag); 1 metric ton in P.P bag (waterproofing) with sling Suitable for Seaworthy Transportation.
2) Net weight 25kg per units(plastic woven bag); 1 metric ton on pallet with plastic film.
3) As per customer's request.

Refining Slag Delivery:
1) Based on terms of EXW, CIF, CFR or FOB as per your request
2) Lead Time: 10-30 days according to the order quantity
3) Flexible sea shipping from port of Tianjin, Shanghai, Qingdao,Lianyungang, or any other Chinese Main Ports.

Calcium silicate,Premelted refining calcium silicate slag

Calcium silicate,Premelted refining calcium silicate slag