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)
Direct and Indirect Bio-Leaching of Co and Ni from an Iron-Rich Laterite Ore using Delftia Acidovorans and Acidithiobacillus Ferrooxidans

M. Hosseini Nasab; M. Noaparast; H. Abdollahi

Volume 12, Issue 2 , April 2021, , Pages 471-489

http://dx.doi.org/10.22044/jme.2021.10528.2002

Abstract
  In this research work, the bio-leaching of Co and Ni from an iron-rich laterite ore is assessed using the acidophilic heterotrophic (Delftia acidovorans)and autotrophic (Acidithiobacillus ferrooxidans) bacteria. The metabolic products of the acidophilic bacteria play an important role in bio-leaching. ...  Read More

Modeling and Optimizing Aluminum Hydroxide Precipitation Process in Industrial Scale; case study: Iran Alumina Plant

H. A. Mirzaei; M. Noaparast; H. Abdollahi

Volume 12, Issue 1 , January 2021, , Pages 235-251

http://dx.doi.org/10.22044/jme.2021.10256.1965

Abstract
  The precipitation of aluminum hydroxide from a supersaturated sodium aluminate solution is known as an essential production step in the Bayer process. In this work, the real precipitation process in the Iran Alumina Plant was modeled by the historical data with the help of Design Expert. According to ...  Read More

Dissolution of Nickel and Cobalt from Iron-Rich Laterite Ores Using Different Organic Acids

M. Hosseini Nasab; M. Noaparast; H. Abdollahi

Volume 11, Issue 3 , July 2020, , Pages 779-797

http://dx.doi.org/10.22044/jme.2020.9564.1869

Abstract
  Due to the decreasing production of nickel and cobalt from sulfide sources, the Ni and Co extraction from the oxide ores (laterites) have become more prevalent. In this research work, the effects of calcination prior to leaching, acid concentration, percent solid, pH, and stirring speed on the nickel ...  Read More

Mineral Processing
Stage specialization for design and analysis of flotation circuits

V. Radmehr; Seyed Z. Shafaei; M. Noaparast; H. Abdollahi

Volume 10, Issue 1 , January 2019, , Pages 37-47

http://dx.doi.org/10.22044/jme.2018.6794.1504

Abstract
  This paper presents a new approach for flotation circuit design. Initially, it was proven numerically and analytically that in order to achieve the highest recovery in different circuit configurations, the best equipment must be placed at the beginning stage of the flotation circuits. The size of the ...  Read More

Mineral Processing
A comparative study of two-stage flotation of Zn and Pb oxide minerals using anionic, cationic, and mixed (cationic/anionic) collectors

M. Salehfard; M. Noaparast; Seyed Z. Shafaei; H. Abdollahi

Volume 9, Issue 4 , October 2018, , Pages 1019-1033

http://dx.doi.org/10.22044/jme.2018.6760.1498

Abstract
  A lead-zinc carbonate ore sample containing 2.5% Pb and 9.39% Zn was used in this research work. The sample was prepared from the Darreh-Zanjir mine located in the Yazd province (Iran). Influences of the influential factors on flotation of smithsonite and cerussite were investigated. Among the different ...  Read More

Effect of grinding time on flotation recovery of copper smelting slags in Bardaskan district

M. Shamsi; M. Noparast; Seyyed Z. Shafaie; M. Gharabaghi; S. Aslani

Volume 6, Issue 2 , July 2015, , Pages 237-249

http://dx.doi.org/10.22044/jme.2015.474

Abstract
  Copper smelting slags are hard materials. Therefore,to recover their copper by flotation method, grinding should be carried out to obtain optimal particle size. Copper smelting slags in the Bardeskan district, with work index of 16.24 kwh/st, were grinded for 65 minutes to reach an acceptable degree ...  Read More

Optimization of cyanidation parameters to increase the capacity of Aghdarre gold mill

Bahman Ghobadi; Mohammad Noaparast; Seid Ziaedin Shafaei; Majid Unesi

Volume 5, Issue 2 , July 2014, , Pages 121-128

http://dx.doi.org/10.22044/jme.2014.328

Abstract
  This study investigates the optimization of gold dissolution from Aghdarre ore. Therefore, a laboratory investigation was initiated, to improve the leaching conditions with the objective of maximizing mill capacity with no reduction on gold recovery. It was observed that the time reduction from 25 to ...  Read More

A developed approach based on grinding time to determine ore comminution properties

Negar Saeidi; Dariush Azizi; Mohammad Noaparast; Soheila Aslani; R Ramadi

Volume 4, Issue 2 , July 2013, , Pages 105-112

http://dx.doi.org/10.22044/jme.2013.180

Abstract
  In this paper, iron ore sample from the Chadormalu was investigated to determine some comminution properties. Chadormalu deposit is one of the largest iron ore mine in Iran, which is located in Yazd province. The representative ore sample contained 57%Fe, 0.9%P and 0.17%S. The sample was crushed; afterward, ...  Read More

Implementation of flotation and gravity separation, to process Changarzeh sulfide-oxide lead ore

A Atrafi; H Hodjatoleslami; Mohammad Noaparast; Z Shafaei; A Ghorbani

Volume 3, Issue 2 , July 2012, , Pages 79-87

http://dx.doi.org/10.22044/jme.2012.45

Abstract
  This study aimed to explore concentration of a low grade sulfide-oxide lead-zinc sample containing 2.3% Pb, 1.91% Zn taken from Changarzeh mine, South Natanz, Iran. The effects of different parameters such as type and dosage of collector, milling retention time, dosage of sodium sulfur and its preparation ...  Read More