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)
A programming method to estimate proximate parameters of coal beds from well-logging data using a sequential solving of linear equation systems

A. Yusefi; H. R. Ramazi

Volume 10, Issue 3 , July 2019, , Pages 633-647


  This paper presents an innovative solution for estimating the proximate parameters of coal beds from the well-logs. To implement the solution, the C# programming language was used. The data from four exploratory boreholes was used in a case study to express the method and determine its accuracy. Then ...  Read More

Structural analysis of impacting factors of sustainable development in underground coal mining using DEMATEL method

R. Norouzi Masir; R. Khalokakaie; M. Ataei; S. Mohammadi

Volume 9, Issue 3 , July 2018, , Pages 567-579


  Mining can become more sustainable by developing and integrating economic, environmental, and social components. Among the mining industries, coal mining requires paying a serious attention to the aspects of sustainable development. Therefore, in this work, we investigate the impacting factors involved ...  Read More

Mineral Processing
Distribution of trace elements in coal and coal fly ash and their recovery with mineral processing practices: A review

I. Kursun Unver; M. Terzi

Volume 9, Issue 3 , July 2018, , Pages 641-655


  Today coal is among the most important energy sources. In order to meet the world's energy demands, low-calorie lignite with a high ash content is generally used in the large capacity coal-fired thermal power plants. As a result of coal firing, wastes such as fly ash, slag, and flue gas are also produced. ...  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

Mineral Processing
A review of simultaneous ultrasound-assisted coal flotation

S. G. Ozkan

Volume 9, Issue 3 , July 2018, , Pages 679-689


  Ultrasound can be used both simultaneously or as a pretreatment technique for flotation to produce higher combustible recoveries, higher heat values, and lower ash data from raw hard coals. The recent research works have indicated that modifying coal surfaces, especially physical surface cleaning with ...  Read More

Comparing ordinary kriging and advanced inverse distance squared methods based on estimating coal deposits; case study: East-Parvadeh deposit, central Iran

P. Afzal

Volume 9, Issue 3 , July 2018, , Pages 753-760


  Finding a proper estimation method for ore resources/reserves is important in mining engineering. The aim of this work is to compare the Ordinary Kriging (OK) and Advanced Inverse Distance Squared (AIDS) methods based on the correlation between the raw and estimated data in the East-Parvadeh coal deposit, ...  Read More

Effect of air column in transport canisters on measured gas contents of coal

N. Aziz; A. Mirzaghorbanali

Volume 8, Issue 1 , January 2017, , Pages 1-9


  Canister desorption is a widely used technique to measure the gas content of coal. The gas content data, when normalized to volume/weight and multiplied by coal seam mass, is used to estimate the gas in place in an area around the cored hole. However, the gas content and the percentage of each constituent ...  Read More

Impacts of coal shrinkage, permeability and petrography on gas regime in mines Case study: Tahmoor coal mine, NSW, Australia

N. I. Aziz; I. Porter; F. Sereshki

Volume 1, Number 1 , January 2010


  The volumetric changes in the coal matrix (Coal Shrinkage), permeability under various gas environment conditions as well as perographical properties were studied in the laboratory. The shrinkage and permeability of coal were examined with respect to changing gas type and confining pressures. The shrinkage ...  Read More