Friday 9 August 2019

Molybdenite is the most easily floated sulfide. Why is molybdenite recovery only 10-25%?

Sorption of flotation reagents at interfaces occurs spontaneously and is accompanied by a loss of free surface energy. Changing the standard free energy Gibbs ΔG0 in the sorption of flotoreagents at the interface is described by Gibbs.
For the thermodynamic probable processes accompanied by energy loss, the value of Gibbs free energy ΔG0 should have a negative value.

We use sulfhydryl hydrophobizators for flotation of sulfide minerals:

Since ΔG0 is positive, the flow of this process is thermodynamically incredible. This is confirmed by the practice of the flotation. The mineral surface should be partially oxidized to fix the xanthate. This is imperative.

What should we do to make a reaction possible?

1. Need to oxidize the surface of molybdenite.
Oxygen and nitrogen are not suitable. What else can You use?

2. Need to compress the double electric layer.
 What surface modifiers can you use?

3. Need to clean the surface of molybdenite.
 What surface modifiers can you use?

4. Need to prevent pollution the surface of molybdenite.
 What surface modifiers can you use?

5.  Need to use another type of hydrophobizators.
 What surface hydrophobizators can you use?

6. Need to activate molybdenite surface.
What activators can you use?


7. Need to suppress molybdenite, and float other minerals.
 What reagent mode do you offer?

That is not all. 

I made thermodynamic calculations and picked up dozens of reagents to increase molybdenite recovery. I have developed mechanisms for their action. You can get superprofits in six months.
 

You can buy this solution from me, or you can continue to lose 75-90% of molybdenite during flotation.

It is useless to search (unauthorized ransack) our apartment again and to seek these my decisions. 
This time I deleted all the calculations and I will do them again.

P.h.D. Natalia Petrovskaya

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