Cleaner column flotation succeeded in producing final concentrate grades of 28 to 29 pct Cu and 1.37 oz Au/st with recoveries of 96.1 pct for Cu and 96.3 pct for Au. Effect of Aeration Rate. Flotation columns are generally operated at a maximum aeration rate for any given set of conditions in order to maximize flotation recovery and throughput.
Metso Microcel flotation columns utilize so called sparger technology enhancing metallurgical performance by allowing an unprecedented flexibility on the grade-recovery curve. Features Finer bubble size and homogenous bubble size distribution
At present the mechanical flotation machine is the most commonly used in industry followed by the column flotation which has recently set off hot spot the pneumatic type and froth separation are not common.
Today column flotation has become . an accepted means of froth flotation for a fairly broad range of appli ions in particular the cleaning of sulfides copper zinc lead and molybdenite and the flotation of iron ore phosphate and coal. Flotation columns differ dramatically from mechanical flotation machines in . several ways:
The amenability of beneficiating a fine hard coal from HwaSun coal mine using column flotation has been studied using a CoalPro flotation column developed by Canadian Process Technologies CPT . After initial testwork using a batch flotation cell to determine the optimal flotation conditions tests were carried out to compare its performance with the column.
Flotation machines and columns are engineered to maximize the recovery of desired ore grade in various minerals processing appli ions. Flotation machines maximize flotation performance for all roughing cleaning and scavenging duties
Column flotation is a physical improvement in the flotation separation process. Due to the excellent results column flotation was studied on materials containing fluorite manganese platinum palladium titanium and other minerals. The paper presents the trends of column flotation machines use according to the m odel processed ...
Industrial flotation machines can be divided into four classes: 1 mechanical 2 pneumatic 3 froth separation and 4 column. The mechanical machine is clearly the most common type of flotation machine in industrial use today followed by the rapid growth of the column machine.
The most rapidly growing class of flotation machine is the column machine which is as its name implies a vessel having a large height-to-diameter ratio from 5 to 20 in contrast to mechanical cells. This type of machine provides a counter-current flow of air bubbles and slurry with a long contact time and plenty of wash water.