The Effect of Disaccharide Concentration in a Liquid Binder on The Mechanisms and Kinetics of Disc Granulation

Analysis of granulation kinetics was carried out using a laboratory disc granulator with a diameter D of 0.5 m. A liquid binder was delivered to the tumbling bed at a constant flow rate with a nozzle generating droplets with a size of approx. 4-5 mm. Fine-grained chalk was used as a model of raw mat...

Full description

Saved in:
Bibliographic Details
Main Authors: Obraniak Andrzej, Gluba Tadeusz
Format: Article
Language:English
Published: Polish Academy of Sciences Committee of Chemical and Process Engineering 2017-06-01
Series:Chemical and Process Engineering
Subjects:
Online Access:http://www.degruyter.com/view/j/cpe.2017.38.issue-2/cpe-2017-0023/cpe-2017-0023.xml?format=INT
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Analysis of granulation kinetics was carried out using a laboratory disc granulator with a diameter D of 0.5 m. A liquid binder was delivered to the tumbling bed at a constant flow rate with a nozzle generating droplets with a size of approx. 4-5 mm. Fine-grained chalk was used as a model of raw material and water or disaccharide solution with concentrations of 20 - 40% as a wetting liquid. Different times of droplet delivery ranging from 2 to 6 min were utilized. Granulometric composition of the bed for selected lengths of process, bed moisture and the moisture of individual size-fractions were assessed. Mass of granulated material, which was transferred from nuclei fraction to other size fractions was determined on the basis of mass balance analysis and the assessment of liquid migration between fractions. The influence of disaccharide concentration in wetting liquid on the aforementioned phenomena was also examined.
ISSN:2300-1925