ISSN 2594-5327
56º Congresso anual — Vol. 56 , num. 1 (2001)
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The Sociedade Brasileira de Eletrólise Ltda. (SBEL) was formed in 1989 by Grupo Ferro Ligas, to develop the production of electrolytic manganese metal (EMM) based on the U.S. Bureau of Mines Laboratory process. SBEL was started with 50 electrolytic cells in the middle of 1990. In the early nineties, the Grupo Ferro Ligas installed big and expensive systems of dust collection in all theirs reduction furnaces. SBEL was consulted in 1992 about utilization of furnace fines of Ferroalloys, especially (Fe-Mn) alloy, with raw material to produce EMM. The furnace fines fines were a big problem to solve for Grupo Ferro Ligas. The successful electrolysis of manganese from relatively pure solutions of manganese sulfate and ammonium sulfate depends upon a combination of many factors, such as cell design, concentration and purity of solution, current density, electrolyte pH, composition of cathodes and anodes, temperature, flow rate to the cells, and treatment of the cathodes. The first EMM was produced in South America at the rate of six tons per day. The ore used was carbonate ore known as Rhodochrosite. Furnace fines were used in order to substitute the carbonate ore. Manganese metal of international acceptable quality was produced from ferromanganese fines.
The Sociedade Brasileira de Eletrólise Ltda. (SBEL) was formed in 1989 by Grupo Ferro Ligas, to develop the production of electrolytic manganese metal (EMM) based on the U.S. Bureau of Mines Laboratory process. SBEL was started with 50 electrolytic cells in the middle of 1990. In the early nineties, the Grupo Ferro Ligas installed big and expensive systems of dust collection in all theirs reduction furnaces. SBEL was consulted in 1992 about utilization of furnace fines of Ferroalloys, especially (Fe-Mn) alloy, with raw material to produce EMM. The furnace fines fines were a big problem to solve for Grupo Ferro Ligas. The successful electrolysis of manganese from relatively pure solutions of manganese sulfate and ammonium sulfate depends upon a combination of many factors, such as cell design, concentration and purity of solution, current density, electrolyte pH, composition of cathodes and anodes, temperature, flow rate to the cells, and treatment of the cathodes. The first EMM was produced in South America at the rate of six tons per day. The ore used was carbonate ore known as Rhodochrosite. Furnace fines were used in order to substitute the carbonate ore. Manganese metal of international acceptable quality was produced from ferromanganese fines.
Palavras-chave
electrolytic manganese metal, furnace fines, electrolysis
electrolytic manganese metal, furnace fines, electrolysis
Como citar
Araújo, José Antônio Mendonça de; Lins, Vanessa de Freitas Cunha.
Production of Electrolytic Manganese Metal From Furnace Fines,
p. 1264-1273.
In: 56º Congresso anual,
Belo Horizonte, Brasil,
2001.
ISSN: 2594-5327, DOI 10.5151/2594-5327-C01205
