For the froth flotation
tests, the following reagents were used: Calcium lignosulfonate (CaLS) from Aldrich; Hosta-phat (etanolic solution of alkane phosphonic acid) OPS75E, from Clariant Produkte; sodium hydroxide (NaOH) from Quimitecnica; Methyl Isobutyl Carbinol (MIBC) from CYTEC.
In hindsight, the successful adoption of froth flotation
by Britannia in 1912 was highly significant, for without the ability to produce a satisfactory concentrate by gravity, separation alone the mine would very likely have closed, and development of the deposit would have been postponed for years.
The results of this study indicate that the selective recovery of PET from PVC/PET mixtures can be accomplished in a two-step process involving alkaline treatment and froth flotation
The Phase 1 test work indicated gravity concentration and magnetic separation will provide an upgraded concentrate and that froth flotation
may provide a further in results.
Copper concentrate is produced in a modern froth flotation
concentrator and sold to smelters in the Lower Yangtze region.
A high-quality saleable copper/gold concentrate will also be produced by conventional froth flotation
, thickening and filtration.
During pilot plant operation, the process flow sheet was modified slightly to include a standard froth flotation
circuit for the residue from the autoclave.
There have been absolutely no environmental incidents with cyanide use in copper and zinc mining froth flotation
systems -- the method being used at the Crandon mine.
These processes have been improved by ISG through a proprietary conditioning step using ultrasonic energy to enhance the pozzolan and carbon products manufactured by froth flotation
analysis of the sample material yielded a 97.
The processes being investigated for metal extraction are: (a) cyanide leaching of both the oxide-gold and supergene zones; (b) primary acid heap leach to SX/EW followed by cyanide heap leach; (c) standard crushing, grinding and froth flotation
and; (d) bio-leaching.
The proposed scope of work includes analytical and mineralogical characterization of samples of pond water and phosphate rock in addition to laboratory testing of selected froth flotation
processes for removing carbonate minerals from phosphate rock.