Analysis of quartz floatability using design of experiments.
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Date
2019
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Abstract
Quartz floatability in cationic reverse flotation depends on the suitable choice
of surfactant type and the conditions under which they are applied. The design of
experiments (DOE) allows the evaluation of process variables, in a structured and
independent way, with statistical validation and a limited number of tests. Tests of microflotation of quartz, in the size range -150 +75 µm, using factorial design of experiments, showed that etherdiamine leads to higher level of quartz floatability than ethermonoamine, favored by increase in collector concentration, at the high level of pH
tested (11.0). Floatability values above 90% were achieved with the use of 3 mg/L of
ether diamine for both pH levels, while with ether monoamine the target was reached
only at pH 11.
Description
Keywords
Ethermonoamine, Etherdiamine, Microflotation
Citation
MATOS, V. E. de. et al. Analysis of quartz floatability using design of experiments. REM - International Engineering Journal, Ouro Preto, v. 27, n. 3, p. 501-506, jul./set. 2019. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S2448-167X2019000400501&lng=en&nrm=iso>. Acesso em: 10 mar. 2020.