Please use this identifier to cite or link to this item:
|Title:||A new method for the control of size of pellets in the melt pelletization process with a high shear mixer||Authors:||Heng, P.W.S.
|Keywords:||High shear mixer
Specific energy consumption
|Issue Date:||May-1999||Citation:||Heng, P.W.S.,Wong, T.W.,Shu, J.J.,Wan, L.S.C. (1999-05). A new method for the control of size of pellets in the melt pelletization process with a high shear mixer. Chemical and Pharmaceutical Bulletin 47 (5) : 633-638. ScholarBank@NUS Repository.||Abstract:||The control of the melt pelletization process in an 8-1 high shear mixer using specific energy consumption of the impeller motor was studied. Lactose was used as the bulk material with polyethylene glycol 3000 as a meltable binder. The effects of binder concentration, mean particle size of bulk material and post-melt impeller speed on the relationship of specific energy consumption and pellet growth were examined. Specific energy consumption was found to be a suitable tool for monitoring the melt pelletization process, and specific energy consumption correlated well with pellet growth. The mean size of the pellets formed becomes correspondingly larger with increasing specific energy, consumption. Concerning the impeller speed, specific energy consumption is more useful as a tool for end-point control of the process than post-melt mixing time. Similar size pellets can be obtained with comparable specific energy consumption, independent of the impeller speed. The control of pellet size requires a correlation between pellet growth and specific energy consumption that is established for the formulation and process conditions used. For this purpose, mathematical modelling of the pellet growth process is presented. The predictions of pellet growth by the mathematical model are in agreement with the experimental findings.||Source Title:||Chemical and Pharmaceutical Bulletin||URI:||http://scholarbank.nus.edu.sg/handle/10635/105573||ISSN:||00092363|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.