Particulate Technology Research Group

RESEARCH GROUP
• Prof. Dr. Zeki AKTAS
• Assist. Prof. Emine YAĞMUR

PhD Students
• Res. Assist. Iffet Isil GÜRTEN
• Res. Assist. Yavuz GÖKÇE

Ms Students
• —

RESEARCH AREA
• Adsorption on Solid Particles
• Froth Flotation
• Oil Agglomeration
• Heavy Media Separation
• Extraction/Supercritical Extraction
• Rheology of Solid-Liquid Mixtures
• Image Analysis
• Porous Solids
• Activated Carbon Production
• Applications of Microwave Energy

PhD and MS STUDIES

MS Studies
• İ.Işıl Gürten, 2008, Production of adsorbent from waste tea and investigation of adsorption properties of the adsorbent

Supervisor: Prof. Dr. Zeki AKTAS

• Yavuz GÖKÇE, 2008, Synthesis of Chitosan Nanoparticles
Supervisor: Prof. Dr. Zeki AKTAS

•Sıla BAL, 2007. The adsorption of MTBE on heat treated coals
Supervisor: Prof. Dr. Zeki AKTAS

• Ebru KOÇAK, 2004. Investigation of Rheological Behaviour of Solid-Water Mixtures
Co-Supervisor: Assoc.Prof. Zeki AKTAS

• Meryem OZMAK, 2003. The Effects of Surface Active Agents on the Froth Flotation of Zonguldak Coal
Supervisor: Assoc.Prof. Zeki AKTAS

• S. Sule KAFKAS (Pembegül), 2003. Investigation of Adsorption of Aniline and 2,4,6-Trichlorophenol on Different Adsorbents
Supervisor: Assoc.Prof. Zeki AKTAS

• F. Çigdem COLDUROGLU, 2002. Beneficiation of Zonguldak Bituminous Coal by Froth Flotation
Supervisor: Assoc.Prof. Zeki AKTAS

• U. Derya TURSUN, 2002. Investigation of Adsorption Behaviour of Organic Compounds on Different Adsorbents
Supervisor: Assoc.Prof. Zeki AKTAS

SELECTED PUBLICATIONS

• Z. Aktas, J. J. Cilliers and A.W. Banford, “Dynamic froth stability: particle size, airflow rate and conditioning time effects” International Journal of Mineral Processing, Baskıda, 2008.
• B. Cengiz, Y. Gokce, N. Yildiz, Z. Aktas, A. Calimli, “Synthesis and Characterization of Hydroxyapatite Nanoparticles”  Colloids and Surfaces A: Physicochemical and Engineering Aspects, Baskıda, 2008.
• S.B. Menceloglu, A. Taralp, Z. Aktas , Y. Yurum “Lyophilization-induced structural changes in solvent-swollen and supercritical carbon dioxide treated low-rank Turkish coals and characterization of their extracts” Energy& Fuels 19 (3): 1056-1064 MAY-JUN, 2005.
• E. Yagmur, E. Simsek , Z. Aktas , T. Togrul, “ Effect of Demineralization Process on The Liquefaction of Turkish Coals in Tetralin with Microwave Energy: Determination of Particle Size Distribution and Surface Area “, Fuel, 84, pp. 2316-2323, 2005.
• K. Hadler, Z. Aktas, J.J. Cilliers, “The Effects of Frother and Collector Distribution on Flotation Performance”, Minerals Engineering, 18, 171-177, 2005.
• D. Elçin, M. Eken, Z. Aktas, S. Çetinkaya, B. Sakintuna, Y. Yürüm, ” Effect of g-irradiation on the structure of activated carbons produced from Turkish Elbistan Lignite”, Radiation Physics and Chemistry, 73, 263-271, 2005.
• N. Yildiz, Z. Aktas and A. Calimli, “ Sulphuric Acid Activation of a Calcium Bentonite ”, Particulate Science and Technology, 22, pp. 21-33, 2004.
• A. W. Banford and Z. Aktas , “ The Effect of Reagent Addition Strategy on the Performance of Coal Flotation ”, Minerals Engineering, 17, pp.745-760, 2004.
• Caglar Citir, Zeki Aktas , Ridvan Berber, “ Off-line Image Analysis for Froth Flotation of Coal ”. Computers and Chemical Engineering, 28, pp. 625-632, 2004.
• N. Yildiz, M. Erol, Z. Aktas and A.Çalımlı, ” Adsorption of Aromatic Hydrocarbons on BTEA- Bentonite “. Adsorption Science and Technology, Vol:22, No: 2, pp.145-154, 2004.

CURRENT PROJECTS

• ‘The Effects of Microwave Energy on the Production of Activated Carbon from Waste Tea’, TUBITAK, 2007-2009.
• ‘Production and Characterisation of Activated Carbon From Waste Tea’, Ankara University Scientific Research Projects, 2007–2008.
• ‘Change of Physical and Chemical Properties of Coals During Heat Treatment Process’, Ankara University Scientific Research Projects, 2005–2007.
• Change of Physical and Chemical Properties of Coals During Heat Treatment Process BAP Project no: 2005-0745 037, November/2005-…
• Synthesis of nano sized chitosan, hydroxyapatite and composites and particle characterization TÜBITAK October/2005-…

SERVICES

LABORATORIES
• Particulate Technology Laboratory
• Research Laboratory