TY - JOUR ID - 63777 TI - Preliminary Beneficiation and Washability Studies on Ghouzlou's Low-Ash Coal Sample JO - International Journal of Mining and Geo-Engineering JA - IJMGE LA - en SN - 2345-6930 AU - Bahrami, Ataallah AU - Hosseini, Mohammad Raouf AU - Rahimi, Mohammadhosein AD - Urmia University AD - Isfahan University of Technology Y1 - 2017 PY - 2017 VL - 51 IS - 2 SP - 119 EP - 123 KW - Coal KW - Heavy media separation KW - Sieve analysis KW - Flotation DO - 10.22059/ijmge.2017.213629.594622 N2 - In the present research work, a low-ash coal, from Ghouzlou deposit in Iran, with an average ash content of 12% was subjected to some beneficiation experiments such as heavy media separation and flotation. Sieve analysis showed that 62.3% of the coal sample with the size of +2 mm had around 7.3% ash contents. Also, heavy media tests carried out on five size fractions revealed that by setting the separation density at 1.4 g/cm3 for the coarse fraction (+1 mm), a 5% ash product with more than 70% coal recovery was obtainable. Samples with lower ash content (<5%) were blended with high-ash coals (>5%) based on the Mayer curves to produce a 5% coal product. Moreover, flotation tests on -1 mm fraction could reduce the ash content from more 13.2% to 10.4%. UR - https://ijmge.ut.ac.ir/article_63777.html L1 - https://ijmge.ut.ac.ir/article_63777_476d75ae0b1ebf1e55d3d6bd4912719e.pdf ER -