Classifying – separating – and assorting solids – Magnetic – Paramagnetic
Patent
1981-11-09
1983-09-27
Miles, Tim R.
Classifying, separating, and assorting solids
Magnetic
Paramagnetic
B04C 526
Patent
active
044067810
ABSTRACT:
Provided is a process and apparatus for the separation of solid mineral substances. Particular applicability is found in the separation of resins from resin-bearing coal material. The resins are effectively separated by treating the resin-bearing coal with a non-solvent liquid, e.g., water, and then subjecting the resultant slurry to centrifugal force, e.g., in a classifying cyclone separator. The step of subjecting the resin-bearing coal slurry to centrifugal force is effected concomitantly in the presence of a gas such as air. A quality resin concentrate which is usable without subsequent refining can thereby be recovered.
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