Exxon Research and Engineering Company

Exxon Chemical Patents, Inc.

James P Norton

Richard C Yeh

Lawrence P Golan

Richard S Coggins

A method for agglomerating and dewatering elastomeric material having a relatively high water content wherein the elastomeric material is fed to a pair of counterrotating pressing rolls with a tight nip opening. The elastomeric material is drawn through the nip opening and compacted and dewatered therein. The method of the present invention produces at least a doubling of the particle size of the feed material and a reduction in the water content of the feed material in the range of 30 to 80%.

Method of agglomerating and dewatering polymeric materials

Apparatus for cooling hot particulate solids, especially shale solids, and reclaiming heat therefrom. The apparatus is constituted of an elongate housing divided into two compartments by a distributor plate sloped from 0.degree. to 15.degree. from horizontal, with jet openings therethrough declined downwardly from vertical at an angle between about 0.degree. to 45.degree.. The upper compartment contains a tube type heat exchanger and can be provided with a bed of solids. The lower compartment constitutes a plenum having a gas manifold with gas inlets for injection of gas into the manifold for release through the jets of the distributor plate. The gas is injected at velocities insufficient to fluidize a significant portion of the solids to maximize heat transfer between the solids and heat exchanger, and it contacts and expands the bed of solids, and assists in the downward movement of the solids along the distributor plate. Hot particulate solids are delivered to the bed of particulate solids in the upper compartment, contacted with the tubes of the heat exchanger through which a fluid coolant is passed, and cool solids are discharged via a cool solids outlet.

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Elmwood Park, NJ, United States of America

James P Norton