Bench Scale Flotation
DENVER , Lab Cell D-1
The Denver bench scale flotation machine can be equipped with 3 cells with different capacities, 500 mL, 2.5 mL and 5 L. The normal operation is to float valuable minerals and leave gangue minerals on the cell bottom, but it can also be vise versa.
Laboratory Scale Column Flotation
The laboratory scale column flotation is used mainly in the study of gas dispersion and hydrodynamics in both the collection and froth zone. The column is approximately 2.5 meters in height and has a diameter of 10 cm.
Microflotation Units
Modified Partridge-Smith Cell
Lab Model
A modified Patridge-Smith microflotation cell is composed of a frit at bottom, a straight glass tube (about 65 mL), and a launder. It is able to test mineral’s response at a certain flotation condition (i.e. pH, reagent dosage). Each test is usually done on 1 g of mineral sample, with air flowrate around 35 cc/min.
Modified Hallimond Tube Cell
Lab Model
A Hallimond microflotation cell is composed of a bottom (with a frit to permit air to pass through), a middle, and a top part, with total internal volume about 120 mL. Similar to a modified Patridge-Smith cell, it tests mineral’s response at a certain flotation condition. Unlike P.-S. cell, it minimizes the number of floated particles that fall back to the pulp with a bending shape. Each test is usually done on 1 g of mineral sample, with air flowrate around 35 cc/min.
Jameson Cell
The Jameson Cell can be run using a downcomer installed in the lab scale column flotation cell.