Method and apparatus for testing and separating minerals

Details Method and apparatus for testing and separating minerals Method and apparatus for testing and separating minerals

1977-12-14

1979-06-05

Hill, Ralph J.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Selective differentiation

209 17, 209172, B03B 104, B03B 540

Patent

active

041572955

ABSTRACT:
A sink-float method and apparatus for testing and separating a mineral such as coal in mineral products containing inert matter which employs a novel trapezoidally shaped testing tank, a mixture of perchloroethylene as a parting liquid and white gasoline as a dispersant and surfactant, and an implement in the form of a long stirring rod angulated at its end. The tank is provided with bars at the bottom to limit the movement of the implement. The invention provides a quick and precise test for specific gravity of raw crushed coal and its impurities.

REFERENCES:
patent: 995853 (1911-06-01), Felsing
patent: 1839117 (1931-12-01), Nagelvoort
patent: 2132484 (1938-10-01), Kober
patent: 2861688 (1958-11-01), Harms

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