towns Linz and Donawitz (a district of Leoben) is a refined version of the Bessemer converter where blowing of air is replaced with blowing oxygen. It reduced...

Henry Bessemer's 1858 patent). By June 1949, VÖEST developed an adaptation of Durrer's process, the LD (Linz-Donawitz) process, (German: LD Verfahren; U...