Dense medium separation

Details Dense medium separation Dense medium separation

1977-06-28

1979-02-20

Hill, Ralph J.

Classifying, separating, and assorting solids

Plural, diverse separating operations

Magnetic and fluid suspension

2091725, 209211, B03B 534

Patent

active

041406281

ABSTRACT:
A method for recovering magnetic dense medium particles from a suspension containing these particles and other less dense particles includes the steps of subjecting the suspension to at least a single stage high relative density separation to form a first fraction containing substantially only dense medium particles and a second fraction containing the bulk of the other particles and some dense medium particles, and subjecting the second fraction to a magnetic separation for recovery of the remaining dense medium particles. Each stage of the high relative density separation is effected in a cyclone. The suspension may be the overflow or the underflow from a dense medium process for the beneficiation of coal fines.

REFERENCES:
patent: 2724503 (1955-11-01), Fontein
patent: 2726764 (1955-12-01), Fontein
patent: 2889925 (1959-06-01), Fontein

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