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US 5,181,557 AGranted
Apparatus for separating a resin phase from a solvent solution containing a solvent, demetallized oil and a resin
AssigneeUop LLC
InventorBrian W. Hedrick
Life of this patent
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Abstract
An apparatus for separating a resin phase from a solvent solution containing a solvent, demetallized oil and a resin. The apparatus has a vertically-positioned heat-exchange surface having an upper portion which is heated by circulating a heat-exchange fluid and a lower portion which is heated by conduction of heat from the upper portion.
Claims6
A heat-exchange apparatus for separating a resin phase from a solvent solution containing a solvent, demetallized oil and resin which comprises:
- (a) at least one generally vertically positioned heat-exchange surface having an upper portion and a lower portion;
- (b) an inlet for directing the flow of said solvent solution over a portion of said heat-exchange surface;
- (c) a means for heating said upper portion of said vertically positioned heat-exchange surface with a circulating hot heat-exchange fluid thereby heating said solvent solution to precipitate a resin phase;
- (d) a means for heating said lower portion of said vertically positioned heat-exchange surface by conduction of heat from said upper portion of said vertically positioned heat-exchange surface;
- (e) an outlet means for recovering a solvent solution having a reduced concentration of resin;
- and
- (f) an outlet means for recovering a resin phase from a lower portion of said heat-exchange apparatus.
4 more elements
Dependencies are inferred from the claim text.