One stop service for steel industry

What are the basic conditions for steelmaking dephosphorization? Write the chemical reaction formula.

What are the basic conditions for steelmaking dephosphorization? Write the chemical reaction formula.

Keywords: steelmaking dephosphorization

Under steelmaking conditions, P cannot be directly oxidized and removed by oxygen. Only the combination of oxides (P2O5) and (CaO) to generate stable and complex compounds can be effectively removed.

The influencing factors are:

(1) Slag basicity: Increasing R can improve the effect of P removal, but if R is too high, the slag becomes sticky, which is not conducive to P removal.

(2) The effect of (FeO): increase the FeO content in the slag and improve the P removal ability.

(3) The influence of temperature: The P removal reaction is a strong exothermic reaction. Appropriately lowering the temperature is beneficial to P removal. (4) Slag amount: increasing the amount of slag can reduce the P content in steel. (5) Slag viscosity: P removal is the interface reaction of steel slag, reducing the slag viscosity is beneficial to the progress of the P removal reaction.





As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

Need For Some Help ?

Professional engineers provide solutions and technical drawings


86(411) 84174804


Special product design, please send specific data and drawings to our mailbox or form.

Get A Free Consultation
And Estimate