Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1997-08-08
2000-04-25
Husar, John M.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 21, 241 23, 241 2419, 241 28, 241 4617, 241 65, 241 791, B02C 1912, B02C 2308
Patent
active
060534397
ABSTRACT:
A system and method for treating a waxed fiber paper product with a high wax content to remove a substantial portion of the wax content includes the pulping of the wax paper fiber at an elevated temperature in excess of the melting temperature of the wax to separate a pulp fraction and to form an emulsion of water and molten wax. The pulp fraction is separated from the emulsion by filtering in a reverse pressure screen in which a finely perforated screen defines a high pressure side and a low pressure side, and a major portion of the water/emulsion is removed from the suspension through the screen perforations leading from the high pressure side to the low pressure side, in which a rotor and foil arrangement within the reverse screen is operated under such conditions that the suspension at the high pressure side of the screen is maintained in a constant fluidized condition.
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Locke Ralph E.
Prentice Gary N.
Vitori Christopher M.
Husar John M.
Inland Paperboard and Packaging Inc.
Thermo Black Clawson Inc.
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