XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2305
calcite, dolomite, and other silicate minerals. Regarding the
particle size distribution of the studied flotation sample, the
corresponding analysis showed as depicted in Figure 5 a P80
value of 132 µm.
Figures 6A and 6B present the results of the textural
analyses. The data reveal that only 45% of apatite particles
are free, while 49% are associated with quartz particles. In
contrast, quartz particles show a lower degree of liberation,
with only 22.23% being free and 74% associated with apa-
tite particles. This significant association between apatite
and quartz implies many challenges in achieving efficient
separation. Consequently, further grinding may be nec-
essary to enhance mineral liberation, which is crucial for
improving the efficiency of subsequent flotation or ben-
eficiation processes. However, it is also essential to assess
the separation efficiency at the current level of grinding to
potentially overcome the additional costs associated with
further grinding
FAC: Fatty Acid Collectors
In this investigation, flotation collectors (FACs) are derived
from various plant and waste sources and are studied to
efficiently recover the apatite fraction from a phosphated
flint sample. The collectors were obtained through a sapon-
ification reaction and were characterized using Fourier
Transform Infrared spectroscopy (FTIR) analysis. This
analysis aimed to assess the completion of hydrolysis in tri-
glycerides’ ester bonds within the oil samples. As shown in
Figure 7, the FTIR spectra of the three FACs revealed the
absence of absorption peaks near 1742 cm–1 corresponding
to the vibration of ester bonds. This was replaced by a peak
near 1558 cm–1, corresponding to the vibration of carboxyl
groups (COO-) (region a). This substitution provides con-
crete evidence of the successful hydrolysis of ester bonds
Figure 3. XRD patterns of FAp: fluorapatite and Qu: quartz mineral samples
Figure 4. The modal mineralogical composition of the
flotation feed
calcite, dolomite, and other silicate minerals. Regarding the
particle size distribution of the studied flotation sample, the
corresponding analysis showed as depicted in Figure 5 a P80
value of 132 µm.
Figures 6A and 6B present the results of the textural
analyses. The data reveal that only 45% of apatite particles
are free, while 49% are associated with quartz particles. In
contrast, quartz particles show a lower degree of liberation,
with only 22.23% being free and 74% associated with apa-
tite particles. This significant association between apatite
and quartz implies many challenges in achieving efficient
separation. Consequently, further grinding may be nec-
essary to enhance mineral liberation, which is crucial for
improving the efficiency of subsequent flotation or ben-
eficiation processes. However, it is also essential to assess
the separation efficiency at the current level of grinding to
potentially overcome the additional costs associated with
further grinding
FAC: Fatty Acid Collectors
In this investigation, flotation collectors (FACs) are derived
from various plant and waste sources and are studied to
efficiently recover the apatite fraction from a phosphated
flint sample. The collectors were obtained through a sapon-
ification reaction and were characterized using Fourier
Transform Infrared spectroscopy (FTIR) analysis. This
analysis aimed to assess the completion of hydrolysis in tri-
glycerides’ ester bonds within the oil samples. As shown in
Figure 7, the FTIR spectra of the three FACs revealed the
absence of absorption peaks near 1742 cm–1 corresponding
to the vibration of ester bonds. This was replaced by a peak
near 1558 cm–1, corresponding to the vibration of carboxyl
groups (COO-) (region a). This substitution provides con-
crete evidence of the successful hydrolysis of ester bonds
Figure 3. XRD patterns of FAp: fluorapatite and Qu: quartz mineral samples
Figure 4. The modal mineralogical composition of the
flotation feed