Oxygen steelworks
Environmental protection : Technology

Oxygen steel mills are covered in depth in the article Conversion steel mills. of this treaty, which deals with certain aspects of environmental protection, in particular :

• gas and smoke capture and dedusting ;

• water treatment ;

• slag processing ;

• plant safety.

In terms of environmental protection, refining reactions result in the formation of :

• of decarburization gases (CO and CO₂) ;

• of dust entrained by these gases and recovered after purification;

• slag from desiliconization and lime dephosphorization ;

• transfer of pollutants to water.

In contrast to these so-called primary emissions of pollutants during cast iron refining, there are also so-called secondary emissions, which occur during converter...