Abstract
The flotation of cassiterite by tetra-sodium sulphosuccinamate is examined along with adsorption studies. The flotation and adsorption are optimum around pH 3.0. The adsorption of sulphosuccinamate on cassiterite displays a step-wise growth with concentration, suggesting a process of condensation on a homogeneous or heterogeneous surface. The optimum concentration for flotation corresponds to the first monolayer, with a molecular orientation dominated by the hydrocarbon chain giving a monolayer at about 5.5 μmol m 2 adsorption. For the initial phase of adsorption, which can be described by an equation for f (1−f) , where f is the fractional surface coverage, the free energy of adsorption is −29.7 kJ/mol. Chemical interaction between the sulphosuccinamate ion and the solid surface appears to play a dominant role.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
