ROUGHER-SCAVENGER CIRCUITS CALCULATIONS:

The below calculations apply to:

Rougher circuit with known individual concentrates assays whose tailing stream feeds a scavenger circuit (rougher-scavenger).

Sequential rougher flotation of a polymetallic ore (e.g., a lead rougher followed by a zinc rougher circuits).

Preflotation followed by rougher circuits (e.g., carbon preflotation followed by copper rougher circuits)

The first rougher circuit tailing and feed streams are calculated from the concentrates and scavenger tailing.

To use:

Enter the rougher concentrates names, flotation time, weights and assays from concentrate 1 (first row) to the last concentrate (last row).

Enter the scavenger concentrates and tailing names, concentrates flotation time, weights and assays.

The flotation times are not cumulative (and no flotation time for the scavenger tailing).

Select the value element/mineral to plot the selectivity curves for each flotation circuit.

Provide one element/mineral grade at which cumulative recoveries for each circuit should be tabulated.

Provide one element/mineral recovery at which cumulative grades for each circuit should be tabulated.

Specify if the flotation kinetics are to be calculated (using regression techniques).

Click on "Mass balance" button to calculate the cumulative data and plot graphs.

Click on "Download results in Excel" button to save the results.

The cumulative recoveries are calculated with respect to each circuit feed.
The calculation of iron sulphide (IS) and non sulphide gangue (NSG) assays can be completed at the Metallurgical.App website.

Rougher circuit

Rgh. Cons. namesCon1 Con2 Con3 Con4 Con5

Con. Flot. time (min)0.5 1.0 1.5 3.0 4.0

Dry weights (g)

Cu (%)

Pb (%)

Zn (%)

Ni (%)

S (%)

Fe (%)

Au (g/t)

Ag (g/t)

Bi (g/t)

Mo (g/t)

PGMs (g/t)

As (%)

SiO2 (%)

MgO (%)

Al2O3 (%)

CaO (%)

Fe2O3 (%)

Li2O (%)

K2O(%)

F (%)

U (g/t)

C (%)

IS (%)

NSG (%)

Plot rougher selectivity curves against: --Select valuable -- Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C

Calculate rougher recoveries at: % or g/t Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C IS NSG grade.   |   Calculate rougher grades at: % Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C IS NSG recovery.
Calculate rougher flotation kinetics: R = R_max[1-exp^(-kt)] (these regressions may take time to converge)

Scavenger circuit

Scav. Cons. & TailCon1 Con2 Con3 Con4 Con5 Tail

Con. Flot. time (min)0.5 1.0 1.5 3.0 4.0

Dry weights (g)

Cu (%)

Pb (%)

Zn (%)

Ni (%)

S (%)

Fe (%)

Au (g/t)

Ag (g/t)

Bi (g/t)

Mo (g/t)

PGMs (g/t)

As (%)

SiO2 (%)

MgO (%)

Al2O3 (%)

CaO (%)

Fe2O3 (%)

Li2O (%)

K2O(%)

F (%)

U (g/t)

C (%)

IS (%)

NSG (%)

Plot scavenger selectivity curves against: --Select valuable -- Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C

Calculate scavenger recoveries at: % or g/t Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C IS NSG grade.   |   Calculate scavenger grades at: % Cu Pb Zn Ni S Fe Au Ag Bi Mo PGMs As SiO2 MgO Al2O3 CaO Fe2O3 Li2O K2O F U C IS NSG recovery.
Calculate scavenger flotation kinetics: R = R_max[1-exp^(-kt)] (these regressions may take time to converge)


*Before re-calculating, delete the previously calculated rougher tailing name, weight and assays.
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Download results in Excel

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WITH THE GRAPHS:

Single click on one data series from the legend to view/unview it.

Double click on one data series from the legend to show only one series.

Double click again to show all data series.

You can also edit the graphs' titles, axes titles, zoom in, zoom out, pan, auto-scale and export the results using the toolbar at the top of each graph.