How Is Platinum Extracted?, · This is known as the flotation separation method, and produces a frothy layer of particles that can be skimmed to provide the extracted platinum. This process is necessary because platinum, even in ore, needs to be removed from other substances.Froth flotation, · The flotation process is used for the separation of a large range of sulfides, carbonates and oxides prior to further refinement. Phosphates and coal are also upgraded (purified) by flotation technology. Prior to 1907, nearly all the copper mined in the US came from underground vein deposits, averaging 2.5 percent copper.Minerals Separation, Limited, · Minerals Separation Ltd, was a small London-based company involved in developing a technique of ore extraction. History [ edit ] Organized in 1903 by South African John Ballot, the firm moved to experiment with new processes as well as acquire patents of others until they had perfected a froth flotation process.Gold Mining | THEALMOSTDONE.com, · Gold flotation The flotation process widely used for lode gold processing. Most of the time, flotation methods are used to effect in the sulfide-that contain gold ore with high floatation was also used as the polymetallic gold-bearing ores such as the gold-chopper ore.Barry Wills' Blog: Flotation '19 Final Report, · Flotation using sea water has been intensively studied over the years, and two papers, from China and Japan looked at the flotation of copper, and chalcopyrite-molybdenum separation in sea water. A third paper, from Chile, described how the bacterium Acidithiobacillus ferrooxidans has shown to be a good depressant of pyrite in seawater flotation..
Methods for Separating and Dewatering Fine Particles, · Flotation becomes inefficient with finer particles. On the other hand, low-grade ores often require fine grinding for sufficient liberation. In mineral flotation, its efficacy deteriorates rapidly below approximately 10 to 15 μm, while coal flotation becomes difficult below