Selectivities of Laboratory Flotation and Float-Sink Separations of Coal.
Read Online

Selectivities of Laboratory Flotation and Float-Sink Separations of Coal. by United States. Bureau of Mines.

  • 605 Want to read
  • ·
  • 68 Currently reading

Published by s.n in S.l .
Written in English

Book details:

Edition Notes


SeriesReport of investigations (United States. Bureau of Mines) -- 5691
ContributionsGayle, J., Smelley, A.
ID Numbers
Open LibraryOL21744133M

Download Selectivities of Laboratory Flotation and Float-Sink Separations of Coal.


The results of the combination of sink–float separation and flotation technique, adding DAA in the medium, showed that to obtain the grade of % PET, the capacity of separation machine should be t/h/m 2 (20 kg/h) for PET–PE mixture, and t/h/m 2 (5 kg/h Cited by: Coal flotation is characterized by the chemical and petro-graphical composition of coal and its rank. In addition, size and sp. gr. of coal particles, pulp density, rate and uniformity of feed, conditioning, type of reagents, pH, presence of clay and type of flotation machines are the other variables which influence the coal flotation. The results of the float-sink tests showed that the most convenient washing operating density was g/cm3, and the weight yield of the clean coal was %wt. (% coal recovery. Coal Flotation Technical Review. Coal Preparation» Fine Coal. Published: March 96 Project All published data, laboratory and full scale, show that all of the three processes investigated return invariably, superior performance to that of the mechanically agitated cells. It is a proven fact that the industrial performance of new flotation.

  The flotation rate of coarse and fine coal slime can be obviously improved with the increasing of the aeration rate of Inflatable Cyclonic Flotation Column, especially for the coarse coal slime by: 5. The single float-sink test defines the relative amount of float-product and sink-reject that should result from the coal being washed in that preparation plant. The second type of float-sink analysis tests a coal sample in a succession of density baths to determine the optimal density for separation of the coal from rocks and minerals. Category Archives: Mineral Processing Lab Experiments. FROTH FLOTATION – COAL [EXPERIMENT 4] 04 Oct. The aim of this lab is to study the beneficiation of a coal slurry by froth flotation and to observe the influence of different reagents . Selectivities of laboratory flotation and float-sink separations of coal / ([Washington, D.C.]: U.S. Dept. of the Interior, Bureau of Mines, ), by John B. Gayle and Annie G. Smelley (page images at HathiTrust).

Selectivities of laboratory flotation and float-sink separations of coal (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: John B Gayle; Annie G Smelley; United States. Bureau of Mines. This investigation was conducted by the Federal Bureau of Mines to compare the selectivities of diverse flotation reagents and also of flotation and float-sink methods of separation. Flotation tests, using sodium chloride, an alcohol-type frothing agent, and a kerosine-pine oil mixture as reagents, were made on seven coking-coal samples representing four different beds. Floatability of Coal and Pyrite 30 Flotation Characteristics of Iowa Coal 32 Variables of Coal Flotation 34 Particle size 34 Flotation reagents 36 Pulp density 38 Pulp pH 39 Agitator speed 39 Separation of Pyrite from Coal 40 Wet oxidation pretreatment 41 Ultrasonic vibration 44 Chemical comminution 46 Micro-bubble flotation Separation of samples into different specific gravities to aid in the identification of minerals. Determining the separation which can be made between the heavier minerals and lighter gangue minerals. Evaluation of products by separating into sink and float fractions. Sink-Float Tests are classed as bulk or selective separations.