Nemaska Lithium Inc NMKEF

RE:Not sure what this means. Is anyone familliar?

[Porksausage]

Flotation is the process by which precious metals / minerals are separated from the gang ( waste/junk. The milling complex in a mine is often referee to as a concentrator. I work in a copper /gold mine and we feed our mill an average of .4 % copper feed grade. The copper is brought up to a 28% grade / vol For those interested the process is as follows: # 1 CRUSHING Ore bearing rock is shipped to a primary crusher and reduced in size to 5" or less. The run through secondary and tertiary crushers until it is less than 7/16 inch #2 GRINDING It is then fed into the mill / concentrator . A series of mills which contain steel rods or balls and water will further reduce the size so that the mineral particle size will contain very little gangue (non target mineral/ waste) At this stage the ore now is a fine sand. Output of this stage is a viscous slurry. #3 FLOTATION The slurry is then pumped into flotation cells ( tanks) where air is introduced into the bottom of the cell along with reagents which aid in making a froth that accumulates on the top of the cell out of oair bubbles that have traveled up through the slurry. During the bubbles travel upward through the massive slurry filled tanks the valuable minerals attach themselves to the air bubbles due to the reagents action of attachment to the mineral and it's hydrophobic nature ( hates water lol) . The mineral collects on top of the flotation cell as a mineral laden froth . This pours off the lips of the cell into landers which collect the froth . The material which leaves the flotation cell is now tailings ( waste ) which now has very little mineral left in it. The collected material is often reground and refloted to further upgrade the concentration level until it meets a target level. # 4 DEWATERING The slurry concentrate which is all the bubbles that poured off into the launders is then pumped into a large hold tank called a thickner . Here the product settles out into the bottom of the tank separating some of the water through gravitation. The bottom of the thickner will have thick slurry ( almost mud ) that will get pumped to filters or dryers that remove most of the water by pressing or other methods. The output of this stage is now a dry sand that contains a high proportion of the mineral being mined. In the case of the mine where I work about 30% copper. The concentrate is then shipped for further upgrade or processing . Smelting or Electrolysis ect. This process is simalar for other minerals but not identical. Sorry for the long post .