Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1976-03-29
1977-07-19
Custer, Jr., Granville Y.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 791, 2091725, 209211, 241DIG38, 241 24, B02C 2310
Patent
active
040364410
ABSTRACT:
The present invention relates to a process for separating scrap essentially consisting of non-ferromagnetic metals into several fractions by specific gravity in which only one heavy separating medium is required. The scrap has been recovered from waste products composed of metals and non-metals by reducing the particle size of the waste through grinding to a size less than 50 mm including particles as small as 0.5 mm. Thereafter, the ferromagnetic components are magnetically separated from the ground waste and the ground waste is fed to a primary specific-gravity separator where non-metallic components are separated from the non-ferromagnetic portion of the ground waste. Thereafter, further separation of the non-ferromagnetic portion in a secondary and, in some cases, tertiary separators is accomplished.
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patent: 2829771 (1958-04-01), Dahlstrom
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patent: 3869559 (1975-03-01), Clark
Basten Albert T.
Dreissen Hubert H.
Custer, Jr. Granville Y.
Stamicarbon B.V.
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