2.3. Micro-flotation tests
The pure mineral particles (2.00 g) were placed in a Plexiglas
cell (40 mL), and then filled with 30 mL ultra-pure water. The pulp
was continuously stirred for 2 min using a pH regulator, 2 min
with the activator, and 3 min with the collector. The pH of the solution
was measured before the flotation, and the flotation was conducted
for 4 min. The concentrates were weighed after filtering
and drying, and the mineral recovery was calculated