XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2533
be as minimum as possible), since for zinc sulfate recov-
ery was 31.3, while for BRD the recovery was 24.6 of zinc
was obtained both without sodium cyanide, which is more
desirable. These results clearly indicate that BRD has better
efficiency in the depression of zinc sulfides than zinc sul-
fate, even without the use of sodium cyanide, a depressant
also widely used in Peru.
Also, Figures 6 and 7, present the rougher flotation for
the first minute and total recovery, showing that at 15g/t
of BRD all the variables involved like Mass pull, recovery
of Cu, Ag, Zn, displayed proper functionality, increasing
valuable minerals, and depressing those that need to be
depressed.
ROUGHER CU- (TOTAL)
See Figures 6 and 7.
CONCLUSIONS
• The findings of this study demonstrate that BRD can
replace the standard dose of zinc sulfate at a dose in
the range of one tenth of that of zinc sulfate, main-
taining all other control parameters such as mass
Figure 6. Effect of use “without” sodium cyanide in comparative tests of zinc sulfate and BRD-400
Figure 7. Effect of use without sodium cyanide in comparative tests of zinc sulfate and BRD-400
be as minimum as possible), since for zinc sulfate recov-
ery was 31.3, while for BRD the recovery was 24.6 of zinc
was obtained both without sodium cyanide, which is more
desirable. These results clearly indicate that BRD has better
efficiency in the depression of zinc sulfides than zinc sul-
fate, even without the use of sodium cyanide, a depressant
also widely used in Peru.
Also, Figures 6 and 7, present the rougher flotation for
the first minute and total recovery, showing that at 15g/t
of BRD all the variables involved like Mass pull, recovery
of Cu, Ag, Zn, displayed proper functionality, increasing
valuable minerals, and depressing those that need to be
depressed.
ROUGHER CU- (TOTAL)
See Figures 6 and 7.
CONCLUSIONS
• The findings of this study demonstrate that BRD can
replace the standard dose of zinc sulfate at a dose in
the range of one tenth of that of zinc sulfate, main-
taining all other control parameters such as mass
Figure 6. Effect of use “without” sodium cyanide in comparative tests of zinc sulfate and BRD-400
Figure 7. Effect of use without sodium cyanide in comparative tests of zinc sulfate and BRD-400