Classifying – separating – and assorting solids – Plural – diverse separating operations – Including electrostatic
Patent
1977-09-20
1979-03-13
Hill, Ralph J.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Including electrostatic
209 39, 2091725, B03B 900
Patent
active
041441648
ABSTRACT:
A process for separating relatively fine solid particles differing in size and specific gravity by the use of a heavy medium which includes magnetizable particles where a mixture containing the fine particles to be recovered and the heavy medium are fed under pressure to a specific gravity separating cyclone which divides the mixture into a relatively fine specifically light fraction from which the magnetizable particles of the heavy medium are subsequently removed for re-use in the system while the diluted flow of the fine specifically light particles to be recovered is fed to a thickening cyclone which separates the bulk of the particles from the carrying liquid; the fine particles are then recovered from a filter screen while a portion of the liquid is further used in the process to facilitate recovery of the magnetic particles from the specifically heavy fraction derived from the cyclone.
REFERENCES:
patent: 2623637 (1952-12-01), Fontein
patent: 2932395 (1960-04-01), Marot
Absil Joseph H.
Mengelers Heinrich J.
Hill Ralph J.
Stamicarbon B.V.
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