Volume 14 (2023)
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)
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


  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
Mechanical activation of phosphate concentrates to enhance dissolution efficiency of rare earth elements from a kinetic viewpoint

H. Shadi Naghadeh; M. Abdollahy; A. Khodadadi Darban; P. Pourghahramani

Volume 10, Issue 2 , April 2019, , Pages 373-388


  The Esfordi phosphate concentrate mainly contains fluorapatite, monazite, and xenotime as rare earth element (REE) minerals, accounting for 1.5% of rare earth metals. The monazite and xenotime minerals are refractory and their decomposition is only possible at high temperatures. Thus mechanical activation ...  Read More

Mineral Processing
Leaching of gold ores with high cyanicides: a physico-chemical modeling approach

Y. Kianinia; M. R. Khalesi; M. Abdollahy; A. Khodadadi Darban

Volume 10, Issue 1 , January 2019, , Pages 87-94


  Processing of gold ores with high sulfide minerals is problematic as they consume cyanide and reduce gold leaching. Optimization of gold leaching and cyanide consumption requires a methodology to estimate the amount of exposed cyanicides, their leaching kinetics, and speciation of cyanide complexes that ...  Read More

Mineral Processing
Desulfurization of coal by HNO3 leaching: Optimization of influential factors using Box-Behnken design

S. Shahraki; M. Karamoozian; A. Azizi

Volume 9, Issue 3 , July 2018, , Pages 657-665


  Sulfur is one of the most significant impurities in coal, which reduces the quality of coal and also results in environmental pollution. This work was aimed to investigate the removal of sulfur from coal by the leaching method employing parameters expected to affect the removal rate such as acid concentration ...  Read More

Kinetics of Sphalerite Leaching by Sodium Nitrate in Sulfuric Acid

M. Hasani; Seyed M. J. Koleini; A. Khodadadi

Volume 7, Issue 1 , January 2016, , Pages 1-12


  In the present work, the extraction of zinc from a sphalerite concentrate using sodium nitrate as an oxidant in a sulfuric acid solution was investigated. The effective parameters such as the temperature, sulfuric acid and sodium nitrite concentrations, stirring speed, particle size, and solid/liquid ...  Read More

Iron leaching from bauxite ore in hydrochloric acid using response surface methodology

soghra salehi; M. Noaparast; S.Z. Shafaei; A. Amini; A. Heidarnia

Volume 6, Issue 1 , January 2015, , Pages 103-108


  In this work, hydrochloric acid is used to remove iron impurities in the bauxite ore contained in the diasporite mineral located in the Sari region. The bauxite ore was calcined at different temperatures and times, and then dissolved in a hydrochloric acid solution. After determining the optimum calcination ...  Read More

Kinetics of chemical leaching of chalcocite from low-grade copper ore: size-distribution behavior

Hojat Naderi; Mahmoud Abdollahy; Navid Mostoufi

Volume 6, Issue 1 , January 2015, , Pages 109-118


  Kinetics of the chemical leaching of chalcocite from a low-grade copper ore in a ferric sulfate medium was investigated using the constrained least square optimization technique. The experiments were carried out for different particle sizes in both the reactor and column at constant Eh, pH, and temperature. ...  Read More

Investigation on selective rhenium leaching from molybdenite roasting flue dusts

Ali Entezari; Mohammad Karamoozian; M Eskandari Nasab

Volume 4, Issue 2 , July 2013, , Pages 77-82


  The possibility of selective leaching process was investigated during molybdenite flue dust leaching to recover its rhenium content. The results show that addition of alcohols to water makes the medium less favorable for molybdenum transfer into aqueous phase. On the other hand, addition of small amounts ...  Read More