Concentrating evaporators – Film type – Moving film
Patent
1988-01-27
1989-09-12
Manoharan, Virginia
Concentrating evaporators
Film type
Moving film
159 274, 159 281, 159 49, 159DIG10, 159DIG16, 202205, 202236, 202237, 203 89, 203 91, 165115, B01D 122, B01D 304
Patent
active
048656895
ABSTRACT:
A device for removing the volatile components of a polymer in a polymer train includes a hollow pipe which defines an interior chamber, a pair of flanges mounted on opposite axial ends of the pipe, a heat jacket mounted on the pipe and disposed to surround the pipe, a plurality of band heating elements mounted on the outer peripheral surface of the heat jacket, and an arrangement of fin elements disposed in the interior chamber of the pipe to contact the polymer flowing through the pipe. Heat from the heating elements is distributed by the heat jacket over the axial length of the pipe and is transferred to the fin elements to heat the polymer flowing through the pipe. The fin elements may be in a cruciform arrangement within the interior chamber of the pipe. A method of removing the volatile components includes forming a thin film of polymer and heating and distributing the heat evenly on the thin film of polymer so that the volatile components may be vaporized. A vacuum is then created for removing the polymer and vaporized volatile components.
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Manoharan Virginia
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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