2492 XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3
that under neutral conditions on dry and hydrated surfaces,
the SDTBAT exhibited stronger binding energy and the
trend followed as: SDTBAT SNBDTC SNBX. In addi-
tion both dry and hydrated under acidic conditions, the
HNBDTC gave strong binding energy and the trend fol-
lowed as: HNBDTC HDTBAT HNBX.
It was noted that SDTBAT adsorbed though tri-
dentate on the Pt and As atoms, while the SNBX and
SNBDTC adsorbed through bidentate on Pt atoms. The
microcalorimetry heats of adsorption showed that SDTBAT
had stronger adsorption, which compared well with com-
putational-neutral adsorptions on dry and hydrated sur-
faces. The microflotation recoveries under pH =4 using
synthetic plant water (2SPW) showed that HNBDTC gave
higher and improved recoveries. Therefore, these results
paved a way for design of novel collector for platarsite and
sperrylite minerals to improve their recovery.
Figure 7. Bar graph showing the adsorption trends and microcalorimetry adsorption trend for SNBX, SNBDTC and SDTBAT
performance on dry and hydrated sperrylite surface under neutral condition
Figure 8. Bar graph showing the adsorption trends and microflotation recoveries for HNBX, HNBDTC and HDTBAT
performance on dry and hydrated sperrylite surface under acidic condition
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