Influence of sodium silicate modulus on iron ore flotation with sodium oleate.

• Autor(a) principal: Arantes, Renato de Souza
• Data de Publicação: 2013
• Outros Autores: Lima, Rosa Malena Fernandes
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UFOP
• Texto Completo: http://www.repositorio.ufop.br/handle/123456789/5223; https://doi.org/10.1016/j.minpro.2013.09.002
• topic: Iron ore; Sodium silicate modulus; Sodium oleate; Flotation

This paper presents the influence of sodium silicate modulus on iron ore flotation with sodium oleate collector. Bench flotation tests were performed at pH 7 with actual iron ore from Quadrilátero Ferrífero, Brazil, with 42.8% Fe and 37.2% SiO2. Iron recovery averaged above 90% and the Fe contents in the concentrate were above 55%. The highest values of Fe grade and lowest of SiO2were obtainedwith lowlevels of pulp density and sodium silicate dosage and with high level of sodiumoleate. Increase of sodiumsilicate modulus had a small influence on response variables.