How did they want to measure bubbles with a diameter of 10-12м, if the device (Cillas 1064 laser particle size analyzer) has a resolution only in the range from 4 x
10-8 to 5 x
10-4м? Where are the picobubbles? Well, at least nanobubbles? Not!
Picobubbles cannot exist even theoretically!!! This is complete nonsense!!! More
At the very beginning of the study, they found that the smallest particles have the highest ash content. In fact, particles less than 0.5 mm are ash. Why didn’t they stop researching and continue to float them? What is the purpose of extracting ash into concentrate?
They write that the bubbles are small bubbles have a low rate of rise, but the flotation rate increased by 200%. How is this possible? The turtle can overtake the hare.
Daniel Tao, Rick Honaker (University of Kentucky) wroted "Improving Coal Flotation Recovery Using Cavitation Concepts (KY007) More: "Picobubbles (usually less than 1 micron) selectively attach to the hydrophobic coal particles...
.... Preliminary results indicate
that the flotation rate of -100 mesh Coalberg coal can be increased by
at least 200% by using an air eductor to pretreat the feed with
submicron bubbles.
They are characterized by an inherently high probability of collision with particles and high probability of attachment and low probability of detachment due to their tiny size, low ascending velocity and rebound velocity from the surface, and high surface free energy to be satisfied, and therefore are very effective for enhancing flotation recovery of fine and coarse particles..."
Ph.D. Natalia Petrovskaya
Picobubbles cannot exist even theoretically!!! This is complete nonsense!!! More
They write that the bubbles are small bubbles have a low rate of rise, but the flotation rate increased by 200%. How is this possible? The turtle can overtake the hare.
The picobubbles should be 10-12м, but 1 micron is 10-6м.
This is as how to compare one million dollars and one dollar.
This is as how to compare one million dollars and one dollar.
They are characterized by an inherently high probability of collision with particles and high probability of attachment and low probability of detachment due to their tiny size, low ascending velocity and rebound velocity from the surface, and high surface free energy to be satisfied, and therefore are very effective for enhancing flotation recovery of fine and coarse particles..."
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