| Journal: | REM. Revista Escola de Minas |
| Database: | PERIÓDICA |
| System number: | 000313652 |
| ISSN: | 0370-4467 |
| Authors: | Oliveira, Jose Roberto de1 Silva, Carlos Antonio da Assis, Paulo Santos Tenorio, Jorge Alberto Soares2 |
| Institutions: | 1Universidade Federal de Ouro Preto, Escola de Minas, Ouro Preto, Minas Gerais. Brasil 2Universidade de Sao Paulo, Escola Politecnica, Sao Paulo. Brasil |
| Year: | 2002 |
| Season: | Ene-Mar |
| Volumen: | 55 |
| Number: | 1 |
| Pages: | 13-18 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The objective of this work was to investigate the effect of temperature on the velocity of MnO reduction by a carbon saturated liquid iron bath. The tests were performed in a laboratory apparatus specially designed to simulate smelting reduction reactions. The reactions were carried out respectively at 1500°C, 1550°C and 1600°C, and also the initial manganese concentration in the bath were 0%, 10% e 40%. The apparent activation energies were graphically determined for the overall reduction process through the initial velocity method. The overall reaction rate increases as the temperature increases, and the apparent activation energies were 64,8, 63,13 and 63,25 kcal/mol, respectively for 0%, 10% and 40% of initial manganese content in the carbon saturated iron bath |
| Portuguese abstract | Esse trabalho estuda a redução do MnO por banhos de ferro saturado em carbono, nas temperaturas de 1500°C, 1550°C e 1600°C. São determinados os valores da energia de ativação aparente para essa reação, através do método das velocidades iniciais, para teores de manganês iniciais no banho de 0%, 10% e 40%. Os valores encontrados foram, respectivamente, 64,8 kcal/mol, 63,13 kcal/mol e 63,25 kcal/mol |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Ingeniería metalúrgica, Oxido de manganeso, Reducción, Cinética |
| Keyword: | Engineering, Materials engineering, Metallurgical engineering, Manganese oxide, Reduction, Kinetics |
| Full text: | Texto completo (Ver HTML) |
