Correlation of the entrainment factor with frother types and their mixtures in the column flotation

Yıl 2019, Cilt: 40 Sayı: 4, 946 - 957, 31.12.2019

Hülya Kurşun

https://doi.org/10.17776/csj.620798

Cited By: 1

Öz

In flotation, entrainment is a mechanical mass transfer process and it
is based on the changes depending on the establishment of linear relationship
between water and solid recovery. The present paper presents results obtained
in investigating the effect of frother mixture concentrations on the
entrainment of fine particles’ during the column flotation. The aim of the
present study was to investigate more specifically the relationship between the
recovery via entrainment of a range of different hydrophilic calcite particles.
For this, to determine entrainment factor of fine particle was used a mixture
of artificial ore (celestite/calcite; 1:1). The results showed that the frother
mixtures had important effect on the grade and recovery, superficial air rate,
gas hold-up and entrainment of fine gangue particles. Entrainment factors for
frother mixtures were compared in flotation column. Kirjaveinen (1989) model
was used for explaining the specific entrainment factor (Pi) of hydrophilic
particles and it has been observed that this model supports the results of this
study. This, together with the increased recovery, resulted in higher celestite
grades of valuable mineral recovered to the concentrate when using the frother
mixtures (Pine Oil+MIBC).

Anahtar Kelimeler

Entrainment, Column flotation, Frothers, Celestite, Calcite

Kaynakça

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