Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1983-11-08
1986-03-18
Makay, Albert J.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34 32, 34 36, 34 54, 34191, 528483, 528503, F26B 306
Patent
active
045759502
ABSTRACT:
A method for removing residual solvent dissolved in non-sticky crumb particles produced by solution polymerization that have been treated substantially to remove solvent from the polymer surface. Particles are transferred into a closed storage zone under inert atmosphere conditions and are maintained for a period of time sufficient to allow diffusion of solvent from the particles as free solvent. Inert gas is then passed through the storage zone to remove the free solvent. The processes of allowing diffusion followed by purging of the free solvent is repeated as necessary.
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Makay Albert J.
Phillips Petroleum Company
Umphlett A. W.
Westphal David W.
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