The important advantage(s) of Lintz and Donawitz (L.D.) process for the manufacture of steel is (are)

Lintz and Donawitz (L.D.) process is an important process for manufacturing of steel. In India, Rourkela steel plant is based upon this process. This process is carried out in a converter similar to bessemer converter having lining (usually refractory made of $\mathrm{Mg} \mathrm{O}$ and $(\mathrm{CaO})$. In this method scrap iron can be used along with flux in converter : On passing oxygen gas at $4-12$ atm pressure into converter, temperature of $2000-2500^{\circ} \mathrm{C}$ range produced which separates C. Si, Mn etc., impurities as slag from iron quickly remaining pure iron is mixed with spiegeleisen (alloy Fe, $\mathrm{Mn}$, C) to produce better quality steel.