ROUGHER CIRCUIT CALCULATIONS:

In rougher flotation, it is desired to achieve the highest possible valuable mineral recovery following a relatively coarse grinding.

The calculations below can be used for:

A rougher flotation circuit with known individual concentrates and tailing assays.

A scavenger flotation circuit with known individual concentrates and tailing assays.

A cleaner flotation circuit with known individual concentrates and tailing assays.

A preflotation circuit with known individual concentrates and tailing assays.

The circuit feed is calculated from the concentrates and tailing data.

To use:

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

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

Select the value element/mineral to plot the selectivity curves.

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

Provide one element/mineral recovery at which cumulative grades 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 calculation of iron sulphide (IS) and non sulphide gangue (NSG) assays can be completed at the Metallurgical.App website.

Con. and Tail names

Con. Flot. time (min)

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 (%)

Con 1 Con 2 Con 3 Tail

0.5 1.0 2.0

45 50 65 840

30 12 4 0.15

Plot 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 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 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 flotation kinetics: R = R_max[1-exp^(-kt)] (these regressions may take time to converge)

Download results in Excel

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.