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New trend-Process For Producing Free-Flowing Granules With Superheated Stream(11)

Source: | Date: 2012-02-26 | Hits:
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Known charged carrier beads of the type in question are generally characterized in that the 

useful material introduced is predominantly or completely deposited on the outside of the 

carrier beads, i.e. on the surface thereof. Sufficiently coherent porous granules of fine-particle insoluble solids can thus be particularly suitable carrier bead materials for hitherto

 known methods. Through granulation of the insoluble fine particles, they provide a large-surface carrier material which is accessible to coating with a liquid composition and/or with 

a composition applied in free-flowing form.

Hitherto, it was not regarded as possible to use useful materials of the type in question 

solid at room temperature as carrier beads for absorbing other useful materials for detergents

 and cleaning products of which a substantial percentage, for example well above one third 

of the carrier beads as a whole or even the predominant part of the carrier beads, is formed 

by surface-active useful materials. The basis here is the knowledge of the poor solubility and 

tendency towards gelation of highly concentrated surfactant mixtures solid at room 

temperature on introduction into aqueous phases. The teaching according to the invention 

builds on the surprising observation that dry mixtures of useful materials of the type

 according to the invention obtained by drying in superheated steam differ distinctly in

 their behavior from the same mixtures of useful materials 5 conventionally dried with hot 

gases.

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