Volume 33 (2023)
Volume 32 (2022)
Volume 31 (2021)
Volume 30 (2020)
Volume 29 (2020)
Volume 28 (2019)
Volume 27 (2018)
Volume 26 (2017)
Volume 25 (2016)
Volume 24 (2015)
Volume 23 (2014)
Volume 22 (2013)
Volume 21 (2012)
Volume 20 (2011)
Volume 19 (2010)
Volume 18 (2009)
Volume 17 (2008)
Volume 16 (2007)
Mineralogical and Liberation Studies of Pachemina Fluorite Ore, Mazandaran Province

H Khorrami; B Rezai; A Amini; F Mossavari

Volume 24, Issue 94 , March 2015, , Pages 155-160


  Mineralogical and liberation studies are the most important parameters used in the selection of separation. An investigation was carried out to identify the various types of minerals present in fluorite ore and to determine the suitability of the methods for its preconcentration and final concentration. ...  Read More

Processing of Sedimentary and Low Grade Dalir Area Phosphate Rocks by Flotation

S. Khoshjavan; B. Rezai; A. Amini

Volume 22, Issue 85 , December 2013, , Pages 3-8


  In this research, processing of Dalir area phosphate ore was investigated for reduction of its gangue minerals such as carbonates (mainly calcite and poorly dolomite) and silicates minerals. According to characterization studies, phosphate mineral content of the ore  was sedimentary collophane mineral ...  Read More

Characterization of Daleer Phosphate Rock Properties for Mineral Processing

S. Khoshjavan; B. Rezai; A. Amini

Volume 20, Issue 79 , January 2011, , Pages 31-38


  In this research, characterization studies of sedimentary phosphate rock from Zanjan Dalir area with respect to processing are investigated. According to mineralogical studies, phosphate ore (Collophane 28.13%), sedimentary mineral and the predominant constituents of the gangues were Calcite (43.53%), ...  Read More

Identification between Earthquake and Explosion by using the Empirical Mode Decomposition (EMD) of Seismograms

A. Amini; sh. Mehrabian

Volume 18, Issue 69 , February 2008, , Pages 166-175


  All the earthquakes are transient and nonstationary. For lack of alternatives, in seismology as well as earthquake engineering, most data are still processed by using the Fourier analysis. The most difficulties in the Fourier spectral analysis are associated with nonlinearity and non-stationary nature ...  Read More

Characterization and Ore Dressing Studies of Kerman Diasporic Bauxite

M. Moazemi; B. Rezai; A. Amini

Volume 17, Issue 67 , February 2008, , Pages 164-171


         In this research firstly ore characterization studies from ore dressing point of view have been conducted and then increase in module ratio i.e. ratio of Al2O3 to SiO2 of the bauxite samples from Boolboolieh area of Kerman province investigated by the means of ore dressing techniques. Obtained ...  Read More

Iron Removal studies of Low Grade Diasporic Bauxite by Using Thermochemical Treatment

M. Moazemi Goodarzi; B. Rezaei; A. Amini

Volume 16, Issue 63 , March 2007, , Pages 72-76


  In this paper, iron removal studies on high iron diasporic bauxite by thermochemical treatment was investigated for the first time. For this purpose, bauxite samples were calcined in temperatures between 600 and 1100°C and then leached with hydrochloric acid. Obtained results revealed, in spit of ...  Read More