XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 1981
quartz, indicating that the two agents did not interact with
quartz.
FTIR Analyze
FTIR analysis was used to analyze untreated agglomerated
specularite and quartz, and CM-CS-3 and CM-TS-1 after
agglomeration with specularite and quartz. The results are
shown in Figure 8.
In Figure 8a, the absorption peaks in the R1 and R2
regions correspond to the stretching vibrations of -OH and
asymmetric stretching vibrations of C-H bonds, respectively
[14]. In the FTIR spectrum of two starch agents, peaks at
1604–1609 cm–1 and 1420–1423 cm–1 are attributed to
the stretching vibrations of the carboxylate group (COO-)
and CH2 bending vibration, indicating carboxymethyl-
ation of agents [15, 16]. In Figure 8b, the absorption peaks
of specularite at 543 cm–1 and 465 cm–1 correspond to
the stretching vibration of Fe-O bonds [17]. After adding
the reagents, new absorption peaks appear at 3455–3308
cm–1 due to hydrogen bonding adsorption, and peaks at
Figure 6. Selective agglomeration-magnetic separation efficiency of CM-CS-3 (a) and CM-TS-1 (b)
Figure 7. Microscopic morphology before adding agents to specularite (a) and quartz (b), adding CM-CS-3 to specularite (c)
and quartz (d), adding CM-TS-1 to specularite (e) and quartz (f)
quartz, indicating that the two agents did not interact with
quartz.
FTIR Analyze
FTIR analysis was used to analyze untreated agglomerated
specularite and quartz, and CM-CS-3 and CM-TS-1 after
agglomeration with specularite and quartz. The results are
shown in Figure 8.
In Figure 8a, the absorption peaks in the R1 and R2
regions correspond to the stretching vibrations of -OH and
asymmetric stretching vibrations of C-H bonds, respectively
[14]. In the FTIR spectrum of two starch agents, peaks at
1604–1609 cm–1 and 1420–1423 cm–1 are attributed to
the stretching vibrations of the carboxylate group (COO-)
and CH2 bending vibration, indicating carboxymethyl-
ation of agents [15, 16]. In Figure 8b, the absorption peaks
of specularite at 543 cm–1 and 465 cm–1 correspond to
the stretching vibration of Fe-O bonds [17]. After adding
the reagents, new absorption peaks appear at 3455–3308
cm–1 due to hydrogen bonding adsorption, and peaks at
Figure 6. Selective agglomeration-magnetic separation efficiency of CM-CS-3 (a) and CM-TS-1 (b)
Figure 7. Microscopic morphology before adding agents to specularite (a) and quartz (b), adding CM-CS-3 to specularite (c)
and quartz (d), adding CM-TS-1 to specularite (e) and quartz (f)