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Augusto Barbosa da Silva

Augusto Barbosa da Silva, Brazilian mining engineer (Nova Lima, Minas Gerais State 15 Sep 1860 - Ouro Preto, Minas Gerais State 16 Jun 1939)
Regarded as one of the world pioneers in electrometallurgy. 
Patented a process for production of pig iron, iron and its alloys jointly with a eletrical furnace that make it in 1902 (with Joseph Gerspacher) 
Patented and constructed an innovative electrical furnace for ferromanganese production (1908) that attracted international reputation. 
Gold Medal, International exposition of Industry and Commerce, Torino, 1911.