Collector mixtures and their synergistic effect on quartz floatability
AUTOR(ES)
Nogueira, Stephânia Consolação Silva; Matos, Vanderson Eney; Pereira, Carlos Alberto; Henriques, Andreia Bicalho; Peres, Antonio Eduardo Clark
FONTE
REM - International Engineering Journal
DATA DE PUBLICAÇÃO
2022
RESUMO
Abstract Sinergy is the interaction of two or more agents to produce a combined effect greater than the sum of their separate effects. Etherdiamine yields superior results for quartz floatability in a Hallimond tube and higher selectivity in the reverse bench scale cationic flotation of an iron ore, when compared to ethermonoamine. Blending these collectors yields better results than each one used individually characterizing a synergistic effect. This work evaluated the effects of the collectors ethermonoamine, etherdiamine and the mixture of these at the ratio 1:1 on the flotation of the quartz through the microflotation and bench flotation tests with a typical Brazilian iron ore. The results demonstrated the occurrence of synergistic effects in tests performed at concentrations of 1 and 3 mg/L and pH 10.5, in the absence of a depressant. In the presence of a depressant, the synergy was not observed under the same tested conditions, due to the collector-depressant interaction. On other hand, the bench flotation tests indicated the occurrence of synergy regarding silica content in the concentrate while an additive effect was observed for the iron recovery and Selectivity Index index demonstrating that a feasibility of using collector mixtures in this process, was not clearly achieved on the tested ratio 1:1.
Documentos Relacionados
- Analysis of quartz floatability using design of experiments
- Plastics floatability: effect of saponin and sodium lignosulfonate as wetting agents
- Bioflotation of apatite and quartz: Particle size effect on the rate constant
- Separate roles for calcium and magnesium in their synergistic effect on uridine uptake by cultured cells: Significance for growth control
- Effect of Aluminium on the Silicosis-Producing Action of Inhaled Quartz