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C. Deslime and float using the same collector and frother as in part B; We had to calculate the amount water needed first as we used 250 g of coal at 10% solids by mass, in the laboratory flotation cell. Under part A: Then, amount of frother of MIBC, which was equivalent to kg/t had to be calculated.

Higher ranking bituminous coal may require no collector. Low ranking bituminous and weathered (oxidised) coal may require a quantity of frother as great as kg/t of raw coal. In general, the amount of frother required varies from to kg/t of raw coal. The purpose of the frother is to produce a sizable amount of small air bubbles, thus ...

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(57) A frother composition and a process for recovering coal from raw coal by subjecting the raw coal, in the form of an aqueous pulp, to a flotation process, wherein the frother composition comprises the reaction product of 1) a polyhydroxy alkane having from 1 to 20 carbon atoms or a mono or disaccharide and 2) propylene oxide, or a mixture of propylene oxide and ethylene oxide, with the ...

In this work, the performance of frothers in a threephase coal flotation was evaluated and related to the watercarrying property in a twophase system. ... and Fuel Oil/Shurcoal (2027), on ...

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The most common frother used in Australia with coal preparation plants is MIBC, m ethyl i so b utyl c arbinol, a secondary alcohol. Its formula is C 6 H 14 O and has a flash point of 42 o C. As an alcohol it should respond to alcohol detectors, commonly used by law enforcement agencies to test drivers, 'breathalyser' units.

May 09, 2014 · The Coal Workers You Didn't Know Existed—And Why They May Be At Risk. Alfred Ray Price, who worked for 28 years in the coal industry, shown with his wife Willa. Price believes that his health problems are directly linked to the years he spent working with chemicals used to clean coal. Photo courtesy of Alfred Ray Price.

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Jun 22, 2015 · Flotation Frothers – Frothing Agents. The next reagent that is added is the Flotation FROTHER. The frother strengthens the surface tension of the air that is injected into the flotation cell. As the air rises in the shape of bubbles, they come into contact with the mineral laden collector which attaches itself to the air.

I claim: 1. In a froth flotation process wherein solid coal particles are selectively separated under coal froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a coal particle collector and an alcohol frother, the improvement characterized by said alcohol frother comprising a polyhydroxy frothing alcohol which has been modified ...

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ArrMaz develops customized flotation oils for specific ores, equipment types and flotation process conditions to beneficiate oxide ores such as phosphate and industrial minerals.

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