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Publication


Featured researches published by Okay Altun.


REM - International Engineering Journal | 2017

HPGR simulation from piston-die tests with an itabirite ore

Hakan Benzer; Hakan Dündar; Okay Altun; Luís Marcelo Tavares; Malcolm Powell; Douglas Batista Mazzinghy; José Francisco Cabello Russo

The Minas Rio project, owned by Anglo American, has HPGRs in open circuit operated as a tertiary/quaternary crushing stage. Currently this type of equipment is designed from HPGR tests on laboratory scale and pilot scale tests. This paper presents a methodology for simulating HPGR from piston-die tests on laboratory scale and a mathematical model developed in Hacettepe University in Turkey. The parameters determined from the results of the piston-die tests were used to validate the HPGR testing on pilot scale. Finally, the model was used to predict the particle size distribution in the HPGR product on industrial scale.


Powder Technology | 2014

Selection and mathematical modelling of high efficiency air classifiers

Okay Altun; Hakan Benzer


Minerals Engineering | 2011

Simulation assisted capacity improvement of cement grinding circuit: Case study cement plant

Hakan Dündar; Hakan Benzer; Namık Aydogan; Okay Altun; N.A. Toprak; Özgür Özcan; D. Eksi; A. Sargın


Powder Technology | 2015

Utilization of grinding aids in dry horizontal stirred milling

Okay Altun; Hakan Benzer; Alper Toprak; Udo Enderle


Construction and Building Materials | 2014

The influences and selection of grinding chemicals in cement grinding circuits

N. Alper Toprak; Okay Altun; Namık Aydogan; Hakan Benzer


Minerals Engineering | 2013

Effects of operating parameters on the efficiency of dry stirred milling

Okay Altun; Hakan Benzer; Udo Enderle


Minerals Engineering | 2011

Comparison of open and closed circuit HPGR application on dry grinding circuit performance

Okay Altun; Hakan Benzer; Hakan Dündar; Namık Aydogan


Minerals Engineering | 2016

Multi component modelling of an air classifier

Okay Altun; Alper Toprak; Hakan Benzer; Ozgun Darilmaz


Minerals Engineering | 2014

The effects of chamber diameter and stirrer design on dry horizontal stirred mill performance

Okay Altun; Hakan Benzer; Udo Enderle


International Journal of Mineral Processing | 2015

Copper ore grinding in a mobile vertical roller mill pilot plant

Deniz Altun; Carsten Gerold; Hakan Benzer; Okay Altun; Namık Aydogan

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D. Eksi

Hacettepe University

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