Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1993-01-22
1995-03-14
Lithgow, Thomas M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 24, 241DIG38, 209 4, 209 9, 2091271, 209128, 209129, 209138, B03B 100, B03C 702, B07B 1500
Patent
active
053970667
ABSTRACT:
Separation of a mixture of plastic materials by separating the plastic mixture according to particle size, and introducing plastic of similar size particles into a vertical fluidized bed column having an upwardly flowing gaseous stream therein. The flow rate of the gaseous stream is controlled to provide a relatively low density fraction of the plastic mixture exiting at the upper end of the column, and a relatively high density fraction of the plastic mixture exiting at the lower end of the column. In one embodiment, electrostatic charges are induced on the particles of the plastic mixture prior to introducing the plastic of similar size particles into the column, and the column is charged to attract thereto the plastic particles having the highest electrostatic charge.
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Chemical Engineering, Sep. 1992, p. 3.
Leitman Richard H.
Pickering Jerry A.
Rychlicki Lukasz E.
Keen Malcolm D.
Lithgow Thomas M.
McKillop Alexander J.
Mobil Oil Corporation
Schneller Marina V.
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