Device for spray-drying solvent-containing compositions
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsWilfried Raehse, Ovidiu Dicoi, Peter Walzel
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Abstract
The invention relates to a device for spray-drying solvent-containing compositions, to a method for spray-drying solvent-containing compositions, and to the uses of the inventive device and of the inventive method, especially for producing powder washing and cleaning agents.
Claims9
An apparatus for the spray drying of solvent-containing compositions which comprises:
- a) an inlet for a liquid or paste-form solvent-containing composition,
- b) means for heating the liquid or paste-form solvent-containing composition to a temperature above the boiling point of the solvent,
- c) means for transporting the liquid or paste-form solvent-containing composition heated in b) under excess pressure and at a temperature which is above the boiling point of the solvent,
- d) means for spraying the liquid or paste-form solvent-containing composition heated in b) and transported under excess pressure in c) at a temperature above the boiling point of the solvent and
- e) a relaxation space which is not under excess pressure and which accommodates the composition sprayed by d).
An apparatus as claimed in any of the preceding claims, characterized in that the solvent to be removed is water.
A process for the spray drying of solvent-containing compositions, characterized in that
- a) a liquid or paste-form solvent-containing composition is heated to a temperature above the boiling point of the solvent,
- b) the heated liquid or paste-form solvent-containing composition is delivered to an atomizer under excess pressure and at a temperature above the boiling point of the solvent and
- c) the heated liquid or paste-form solvent-containing composition is sprayed under excess pressure by the atomizer into a relaxation space which is not under excess pressure at a temperature above the boiling point of the solvent.
The use of the apparatus claimed in any of claims 1 to 6 or the process claimed in any of claims 7 to 9 in the production, treatment and processing of foods;
- in the production of disinfectants or textile treatment compositions;
- in the production of pharmaceutical preparations, plant protection or plant treatment compositions, building materials or building aids, paints, lacquers, polymers, the ceramics industry and more particularly in the production of powder-form or granular laundry detergents, wetting agents and cleaners or of raw materials for laundry detergents, wetting agents or cleaners.
Dependencies are inferred from the claim text.