Method for drying particulate material

Details Method for drying particulate material Method for drying particulate material

1995-10-06

1997-01-28

Bennett, Henry A.

Drying and gas or vapor contact with solids

Process

With contacting of material treated with solid or liquid agent

34377, 34179, F26B 300

Patent

active

055968163

ABSTRACT:
A method is disclosed for drying particulate material, particularly alumina, which comprises the steps of subjecting a first portion of a wet particulate material feed to pre-drying to produce at least partially dried particular material and moisture, heating the at least partially dried particulate material to a temperature higher than the temperature of the pre-drying to produce hot particulate material, water vapour and products of combustion, passing the water vapour and products of combustion to the pre-drier, mixing the hot particulate material with a second portion of the wet particulate material feed to cool the hot particulate material and further cooling the cooled particulate material and subsequent separation to produce a low temperature particular material product.

REFERENCES:
patent: 4376343 (1983-03-01), White et al.
patent: 4581829 (1986-04-01), Becker et al.
patent: 4761893 (1988-08-01), Glorioso
patent: 4953478 (1990-09-01), Glorioso
patent: 5069801 (1991-12-01), Girovich
patent: 5215670 (1993-06-01), Girovich
patent: 5428906 (1995-07-01), Lynam et al.

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