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Paper Information

Title: 

THE STUDY OF EFFECTIVE PARAMETERS ON PYRITE MAGNETIC REMOVAL FROM TABAS COAL USING EXPERIMENTAL DESIGN

Type: PAPER
Author(s): ABDOLLAHI M.*,SHAHBAZI B.
 
 *MINING DEPARTMENT, FACULTY OF ENGINEERING, TARBIAT MODARRES UNIVERSITY, TEHRAN, IRAN
 
Name of Seminar: PROCEEDING OF IRANIAN MINING ENGINEERING CONFERENCE
Type of Seminar:  CONFERENCE
Sponsor:  IRANIAN SOCIETY OF MINING ENGINEERING
Date:  2005Volume 1
 
 
Abstract: 

Sulfur is one of the important impurities present in coal in two forms of organic and inorganic sulfur (pyrite or marcasite and sulfate). Sulfur content of coal can decrease calorific value of coal and cause environmental pollution because of generating SO2 and H2S gases. Magnetic method makes use of magnetic property of minerals to separate diamagnetic from paramagnetic materials. Coal has diamagnetic nature but pyrite has paramagnetic nature, therefore, it is expected that pyrite to be removed from coal using wet magnetic separator with high intensity. In this paper, separation of pyrite from Tabas coal (Mezino І) was carried out by wet magnetic separator with high intensity and the effect of four different factors such as particle size, pulp density, magnetic field intensity and magnetic separator spheres diameter were investigated on the elimination of pyrite from coal. It was found that under optimum conditions (particle size: -150mm, pulp density: 10%, magnetic field intensity: 2T and magnetic separator sphere diameter: 5mm) about 47% of pyrite may be removed.

 
Keyword(s): PROCESSING, PYRITE, COAL, MAGNETIC SEPARATOR, TABAS
 
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