Perfection of microflotation by governing dynamic adsorption layer

Perfection of Microflotation by Governing Dynamic Adsorption Layer 

After the main stages of the elementary act have been considered, preliminary considerations about microflotation control are discussed. Control of microflotation processes is based first of all on selection of optimal bubble size and optimal reagent to manipulate electrostatic interaction. The control is efficient if all stages of the elementary flotation act are optimised long and short range interaction, attachment process detachment prevention. 

If flotation is not complicated by an energy barrier and h is not very small so that the approach of particles leads to a break of the film and a formation of three-phase contact (fulfilled for small particles), microflotation is perfected by controlling the transport stage. This question was considered in Section 10.4 and the control of microflotation reduces to the choice of an optimal bubble size. 

The control of the DAL becomes important when an electrostatic barrier has to be removed by the addition of cationic surfactants. Here again two cases have to be distinguished. 

Through a recharge of the bubble surface not only the electrostatic barrier is removed, but also the near potential well becomes deeper, so that a subsequent detachment of particles becomes impossible. In this case microflotation perfection reduces to the control of the transport stage 

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