Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Investigation and scale-up of hot-melt coating of pharmaceuticals in fluidized beds
Date
2011-03-10
Author
Külah, Görkem
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
173
views
0
downloads
Cite This
This study was performed to investigate and scale-up the hot-melt coating process in fluidized beds. A series of well-designed experiments was carried out in a pilot scale unit with 20 kg product capacity to investigate the effects of process variables on the efficiency of the coating of Cefuroxime Axetil with stearic acid. Results showed that the efficiency is at the highest when the fluidization air flow rate is adjusted by considering the changes in the amount of materials present in the unit as well as the changes in the terminal velocities of particles during the process.
Subject Keywords
General Chemical Engineering
URI
https://hdl.handle.net/11511/35797
Journal
POWDER TECHNOLOGY
DOI
https://doi.org/10.1016/j.powtec.2010.12.016
Collections
Department of Chemical Engineering, Article
Suggestions
OpenMETU
Core
Monitoring of liquid sprayed conical spouted beds by recurrence plots
Savari, Chiya; Külah, Görkem; KÖKSAL, MURAT; Sotudeh-Gharebagh, Rahmat; Zarghami, Reza; Mostoufi, Navid (Elsevier BV, 2017-07-01)
In this study, the chaotic behavior of gas-solid flow in a laboratory scale conical spouted bed during spraying of water on the sugar particles was investigated using non-linear analyses of pressure fluctuations (PFs) and acoustic emission (AE) signals. The phase space trajectories, recurrence plots (RP) and recurrence quantification analyses (RQA), as powerful non-linear techniques, were used for monitoring of the bed hydrodynamics. It was concluded that the reconstructed phase space trajectories of both P...
Investigation of bioprocess parameters for glucose isomerase production by Bacillus thermoantarcticus
Haykır, Işık; Çalık, Pınar; Department of Chemical Engineering (2007)
In this study, the effects of bioprocess parameters on glucose isomerase roduction by Bacillus thermoantarcticus (DSMZ 9572) were investigated. For his purpose, firstly, in laboratory scale shake-bioreactors, a defined medium was designed in terms of its carbon and nitrogen sources, to achieve the highest glucose isomerase activity. Optimum concentrations of medium components were determined by a statistical approach, namely Response Surface Methodology (RSM). RSM defined the relationship between the respon...
Determination of phenolics concentration using cross-linked phenol oxidase aggregates
Ertürk, Bedriye Durhan; Bakır, Ufuk; Department of Chemical Engineering (2008)
The main object of the presented study was investigation of the use of cross-linked enzyme (tyrosinase) aggregates (CLTA) obtained from crude mushroom extract for a rapid phenolic content analysis in wines. In addition, a comparison of phenolic characteristics of Turkish red wines was performed. Reproducible and reliable results in total phenolic measurement were obtained with CLTAs similar to pure tyrosinase and tyrosinase obtained from crude mushroom extract. Measurement of total phenolic content is possi...
Study of Sorption of Alcohols on High Silica ZSM-35
Babuçcuoğlu, Yurdaer; Yücel, Hayrettin; Department of Chemical Engineering (2007)
This study investigated the equilibrium sorption capacities and rates of sorption of some alcohols on Na- and/or H- form of ZSM-35 at different temperatures by gravimetric method using an electrobalance. The alcohols studied were methanol, ethanol, propan-1-ol, propan-2-ol, n-butanol. The ZSM-35 sample used in sorption experiments resulted from a study for synthesis of high silica ZSM-35 zeolite. This ZSM-35 sample was called as NaZSM-35. The influence of ion-exchange on the sorption capacity and kinetics w...
Screening and characterization of catalytic composite membranes for ethyllactate production
Oğuzer, Özge; Karakaş, Gürkan; Department of Chemical Engineering (2004)
In this research, molybdophosphoric acid (PMo) was blended with polysulfone polymer (PSF) and form a film catalyst by using a common solvent dimethylformamide (DMF). Kinetic and mass transfer parameters were evaluated for catalytic films in ethanol lactic acid esterification reaction as film surface area, film thickness and catalyst loading were varied at 50?C, 1 atm and 1:1 ethyl alcohol to lactic acid mole ratio conditions. Also prepared films were characterized by DSC, TGA, FTIR, X-ray and SEM analysis. ...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
G. Külah, “Investigation and scale-up of hot-melt coating of pharmaceuticals in fluidized beds,”
POWDER TECHNOLOGY
, pp. 175–184, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/35797.