XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 3089
their individual use (see Figure 3). The decrease in con-
tact angle is notable from 60 mg/L of DX in the presence
of MBS, reaching 28.83° at a DX dosage of 150 mg/L.
Subsequently, pulp aeration (150 mL/min of air) was
introduced before adding the depressants, aiming to have
oxygen available during conditioning with MBS, according
to Dávila-Pulido et al. (2011). This procedure proved more
effective in reducing the contact angle, reaching 17.58° at
Figure 3. Pyrite contact angle with the addition of MBS or DX, applied individually
without a collector at pH 8
Figure 4. Pyrite and galena contact angle combining MBS (150 mg/L) and DX with and
without pulp aeration and without a collector (150 mL/min of air)
their individual use (see Figure 3). The decrease in con-
tact angle is notable from 60 mg/L of DX in the presence
of MBS, reaching 28.83° at a DX dosage of 150 mg/L.
Subsequently, pulp aeration (150 mL/min of air) was
introduced before adding the depressants, aiming to have
oxygen available during conditioning with MBS, according
to Dávila-Pulido et al. (2011). This procedure proved more
effective in reducing the contact angle, reaching 17.58° at
Figure 3. Pyrite contact angle with the addition of MBS or DX, applied individually
without a collector at pH 8
Figure 4. Pyrite and galena contact angle combining MBS (150 mg/L) and DX with and
without pulp aeration and without a collector (150 mL/min of air)