publication . Doctoral thesis . 2008

Untersuchungen zur fließregulierenden Eigenschaft hochdisperser Fällungskieselsäuren

Müller, Anne-Kathrin;
Open Access German
  • Published: 01 Jan 2008
  • Country: Germany
Abstract
This study set out to investigate by experimentation the influence of the addition of various types of high dispersive flow regulators, used in pharmaceutical technology and the food and feed sector, to some selected cohesive bulk powders. For this purpose, binary mixtures consisting of various concentrations of the flow additive and the bulk solid were prepared in a free fall mixer. Different kinds of high dispersive silica including an AEROSIL® fumed silica (Evonik Degussa GmbH) and various SIPERNAT® precipitated silicas (Evonik Degussa GmbH) were applied as flow additives. Corn starch, potato starch and Hoechst Wachs C Micropulver® represented the cohesive te...
Subjects
free text keywords: Siliciumdioxid, Fließverhalten, Pulver, Schüttgut, ddc:540
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