Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1988-12-27
1991-08-06
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
159 471, 34 17, F26B 700
Patent
active
050365991
ABSTRACT:
An aqueous beneficiated clay slurry is concentrated from a lower solids content to a higher solids content by evaporating water therefrom by passing the aqueous clay slurry through one or more non-contact evaporative heat exchangers in indirect heat exchange relationship with a hot drying fluid. The driving fluid, that is the heating medium which is passed in indirect heat exchange relationship with the aqueous clay slurry to initiate the evaporation process, comprises a hot liquid, preferably a moderate temperature hot liquid such as hot water having a temperature ranging from about 120.degree. F. to about 200.degree. F.
REFERENCES:
patent: 3486740 (1969-12-01), Christian
patent: 4642904 (1987-02-01), Smith, Jr.
patent: 4687546 (1987-08-01), Willis
Bennet Henry A.
Georgia Kaolin Company, Inc.
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