Mineal flotation machine/ froth flotation machine/ flotation tankUp to 5 years warranty. US $1200-$15850/ Set. 1 Set (Min. Order) 12 YRS Henan Xingyang Mining Machinery Manufactory. 98.6%. Contact Supplier. Compare. On the other hand, the slurry is mixed with the drug and the foam is refined to make the mineral bonded foam.