Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Investigating possibility of replacing some chemical reagents used in sulfide copper flotation with halophilic bacteria

Amir Mohammad Nasrollahzadeh Bafti; Mohammad Jahani Chegeni; Ahmad Moghooeinejad; Zahra Manafi

Articles in Press, Accepted Manuscript, Available Online from 22 January 2023


  Flotation is the most important method for processing sulfide copper ores. Due to the high cost and environmental hazards caused by the chemical reagents used in this process (collectors, frothers, pH regulators, depressants, etc.), the possibility of replacing all these reagents or at least some of ...  Read More

Bio-flotation of Chalcopyrite using Halophilic Bacteria Separately and Their Combination as Pyrite bio-Depressant

Amirmohammad Nasrollahzadeh; Mohammad Jahani Chegeni; Ahmad Moghooeinejad; Zahra Manafi

Volume 13, Issue 4 , October 2022, , Pages 1119-1138


  Due to the increasing consumption of lime in the flotation process to increase the pH of the system and create an alkaline environment, as well as its gradual increase in cost, the attention of researchers has been drawn to perform flotation operations in a neutral environment. Halophilic bacteria have ...  Read More

Determining an Appropriate range for the Number of Cuboid Lifters in Ball Mills using DEM

M. Jahani Chegeni; S. Kolahi

Volume 12, Issue 3 , July 2021, , Pages 845-862


  The number of lifters in the liner of ball mills and the mill rotation speed are among the most significant factors affecting the behavior of grinding charge (balls) and their motion trajectory, and consequently, the comminution mechanism in these mills. In this research, in order to find a suitable ...  Read More

Mineral Processing
Investigation of Effect of Number of Lifters on Performance of Pilot-Scale SAG Mills Using Discrete Element Method

S. Kolahi; M. Jahani Chegeni

Volume 11, Issue 3 , July 2020, , Pages 675-693


  The number of lifters of mill shell liners, mill rotation speed, and filling percentage of grinding media are three of the most important parameters influencing the charge behavior and the trajectory of ball motion inside the SAG mills, and consequently, their performance. In this paper, the milling ...  Read More

Mineral Processing
An Investigation on Effect of Shell Liner Type on Performance of Industrial SAG Mills Using DEM

M. Jahani Chegeni; S. Kolahi

Volume 11, Issue 2 , April 2020, , Pages 387-404


  The shell liner type, rotation speed, and ball filling percent are the key factors influencing the charge behavior inside the SAG mills, and consequently, their performance. In this work, the milling operation of industrial SAG mills is investigated using the Discrete Element Method (DEM). First, an ...  Read More

Mineral Processing
Combined DEM and SPH simulation of ball milling

M. Jahani Chegeni

Volume 10, Issue 1 , January 2019, , Pages 151-161


  A deeper understanding of the milling operation of ball mills helps mineral processing engineers to control and optimize them, and therefore, reduce their consuming power. In this work, the milling operation of ball mills is investigated using two methods, i.e. DEM and combined DEM-SPH. First, a pilot ...  Read More