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- Title
Prospective Application of Response Surface Methodology for Predicting High-Energy Mixing Process Conditions towards Fine Powders Flow Improvement.
- Authors
Leś, Karolina; Opaliński, Ireneusz
- Abstract
Planetary ball mill was proposed as an intensive high-energy mixer to obtain flowability improvement of industrially exploited, cohesive and finely comminuted powders via dry coating. Response surface methodology (RSM) coupled with central composite rotatable design (CCRD) was applied as an effective method for the prediction of high-energy mixing conditions. The use of this procedure allows identifying relatively narrow ranges of high-energy mixing parameters (rotating speed of planetary ball mill and mixing time) and the amount of additives used (nanosilica and isopropyl alcohol) providing substantial improvement of the flowability of Aluminium hydroxide (Apyral) and Calcium carbonate powders. In order to find the optimal values of the process parameters, enabling to obtain the lowest values of flowability indices (angle of repose, compressibility index), the desirability function approach was applied. The obtained results may be a basis for developing a general routine allowing mixing parameters to be successfully predicted regarding some physical properties of powders only with no experiments needed.
- Subjects
RESPONSE surfaces (Statistics); ALUMINUM hydroxide; MIXING; BALL mills; ISOPROPYL alcohol
- Publication
Advances in Science & Technology Research Journal, 2021, Vol 15, Issue 1, p134
- ISSN
2080-4075
- Publication type
Article
- DOI
10.12913/22998624/130897