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The process proved successful at their Central Block plant, Broken Hill that year. Significant in their "agitation froth flotation" process was the use of less than 1% oil and an agitation step that created small bubbles, which provided more surface to capture the metal and float into a froth at the surface. [30]
By the 1910s, the firm's Australian process was generally accepted as so great an advance over any process known before that it promptly came into extensive use for the concentration of ores in most of the principal mining countries of the world. It largely replaced all earlier ore extraction processes and is today known as froth flotation.
Froth flotation is an important concentration process. This process can be used to separate any two different particles and operated by the surface chemistry of the particles. In flotation, bubbles are introduced into a pulp and the bubbles rise through the pulp. [19] In the process, hydrophobic particles become bound to the surface of the bubbles.
These resulted in high losses of copper. Consequently, the development of the froth flotation process was a major step forward in mineral processing. [12] The modern froth flotation process was independently invented in the early 1900s in Australia by C.V Potter and around the same time by G. D. Delprat. [13]
Copper-sulfide-loaded air bubbles on a Jameson Cell at the flotation plant of the Prominent Hill mine in South Australia. The Jameson Cell is a high-intensity froth flotation cell that was invented by Laureate Professor Graeme Jameson of the University of Newcastle (Australia) and developed in conjunction with Mount Isa Mines Limited ("MIM", a subsidiary of MIM Holdings Limited and now part of ...
Gaudin (left) with Professor Douglas W Fuerstenau in Berkeley in June 1965, one year before his retirement from MIT. Antoine Marc Gaudin (August 8, 1900 – August 23, 1974) was a metallurgist who laid the foundation for understanding the scientific principles of the froth flotation process in the minerals industry.
The ore is comminuted and the cobalt rich oxides are separated by froth flotation. The cobalt-bearing concentrate is then mixed with lime and coal, and then melted in a reducing atmosphere. Iron and lighter impurities float to the surface as solid dross or are expelled from the melt as gas.
Froth flotation – Process for selectively separating of hydrophobic materials from hydrophilic; Magnetic separation – Process of separating components of mixtures by using magnets; Vanning – Ore dressing in which ores are washed on a shovel; Extractive metallurgy – Ore extraction material science