Process and facility for producing a powdered porous product
AssigneeClextral
InventorsAlain Brisset, Maxime Collado
Life of this patent
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Abstract
Disclosed is a process in which a viscous initial product having both a temperature of between 5° C. and 70° C. and a viscosity greater than 100 mPa·s is provided, —by way of a pump provided upstream of at least one aerator, the viscous initial product is transferred as it is to the at least one aerator in which the viscous initial product is mixed with a gas, injected into the aerator, so as to obtain a liquid foam continuously exiting the aerator, and—the liquid foam continuously exiting the at least one aerator is continuously pushed into the inlet of a treatment device which continuously divides and then dries this liquid foam so as to obtain a powdered porous product which has a solids content greater than 90%.
Claims10
A method for producing a powdery porous product, wherein:
- a viscous initial product having both a temperature comprised between 5° C. and 70° C. and a viscosity greater than 100 mPa·s is provided,
- by means of a pump which is provided upstream from at least one aerator and which discharges the viscous initial product at a pressure comprised between 3 and 20 bars, the viscous initial product is transferred as such as far as said at least one aerator in which the viscous initial product discharged by the pump is mixed by said at least one aerator with a gas, injected into said at least one aerator, for obtaining a liquid foam continuously leaving said at least one aerator, and
- the liquid foam continuously leaving said at least one aerator is continuously pushed into an inlet of a treatment device which, continuously divides by spraying and then dries this liquid foam in order to obtain a powdery porous product which has a dry material level greater than 90%.
Dependencies are inferred from the claim text.