Coal flotation using wash oil as a new type of collector

XIE Guangyuan; WU Ling; LI Guozhou; YU Hesheng

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Coal flotation using wash oil as a new type of collector

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The use of wash oil as a coal collector is proposed to overcome the disadvantages of regular collectors in coal slime flotation. These disadvantages include high price, limited sources and high consumption. The effect of additives on flotation was studied and an innovative "one rough separation-one cleaning separation" flotation technology was developed. The experimental results show that the clean coal ash content decreases by about 1.36% and the clean coal yield declines by around 10% with the application of the depressant. There is an increase of 3.76% in the yield of clean coal and a decrease of 0.40% in the ash content caused by utilizing a dispersant. An ultimate product having an ash content of 10.78% and yield of 70.12% can be attained using a combination of dispersant and depressant. The use of this new technology decreases the ash content by 1.21%, decreases the yield by 2.80% and an increases the coal flotation perfect index by 2.03%. Compared to common flotation, the utilization of the new technology reduces ash by 0.17%, increases yield by 5.3% and increases perfect index by 4.18%.

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《矿业科学技术学报：英文版》 |2010年第4期|546-550|共5页
作者
XIE Guangyuan; WU Ling; LI Guozhou; YU Hesheng;
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作者单位

School of Chemical Engineering & Technology;

China University of Mining & Technology;

Xuzhou 221116;

China;

Northern Engineering and Technology Corporation;

MCC;

Anshan 114009;

China;

Schulich School of Engineering;

University of Calgary;

Calgary T2NIN4;

Canada;

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原文格式 PDF
正文语种 chi
中图分类粗苯加工和产品;
关键词
煤炭浮选; 洗油; 集热; 浮选技术; 灰分含量; 煤泥浮选; 精煤灰分; 精煤产率;

Coal flotation using wash oil as a new type of collector

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