Results 171 to 180 of about 364,250 (225)

Toward large-scale utilization approaches for phosphogypsum with low-carbon paradigm. [PDF]

iScience
Wang H, Xiang Y, Huang X, Wang G, Wang G, Chen L, Deng B.   +6 more
europepmc   +1 more source

An experimental study of the effect of electric field enhancement on the adsorption characteristics of coalbed methane. [PDF]

Sci Rep
Chen Z, Liu H, Han W, Li H.
europepmc   +1 more source

Column flotation of coal with fluorosurfactants

, 1989
openaire   +2 more sources

Flotation kinetics of coal in the Inflatable Cyclonic Flotation Column

Powder Technology, 2018
This paper mainly investigates the flotation kinetics of coal in the flotation column. The flotation tests were carried out in the Inflatable Cyclonic Flotation Column (ICFC) which consists of two parts, i.e., the inflatable flotation unit and the cyclone flotation zone.
Li, Ningbo, Li, Yanfeng, Fu, Xiaoqing, Gao, Fuliang, Zhang, Chiqiang, Xia, Wencheng, Liang, Long   +6 more
openaire   +5 more sources

Removal of Pyrite in Coal Flotation

Mineral Processing and Extractive Metallurgy Review, 1992
In most operating coal-cleaning plants, a significant amount of pyrite is recovered in the froth during flotation of high-sulfur coal. Reducing the pyrite recovery first requires that the primary recovery mechanism should be identified, as different measures are required for reducing entrainment, locked-particle flotation, or true hydrophobic flotation.
S. K. KAWATRA, T. C. EISELE
openaire   +2 more sources

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Column Flotation of Coal

2006
Paper is concerning floatability of black coal from Mine Lazy by means of Flotalex, Montanol and PE2 collectors. The goal of the work was verification of floatability of mentioned coal as well as flotation collectors selectivity. The investigation was carried out on class – 0, 5 mm in a column flotation.
Fečko, Peter, Bedeković, Gordan, Stanclova, Silvie, Pectova, Iva   +3 more
openaire   +4 more sources

Coal flotation to satisfy coal quality

Filtration + Separation, 2017
During the coal flotation process, high ash coal fines are carried into foam, although process optimization can reduce ash content. This paper suggests an alternative method for coal flotation which has a significant effect on quality, coal production processes and plant design.
Yaoli Peng, Wencheng Xia, Guangyuan Xie, Haichang Yang   +3 more
openaire   +1 more source

Reverse Flotation of Taixi Oxidized Coal

Energy & Fuels, 2013
X-ray photoelectron spectroscopy (XPS) was used to indicate the chemical properties of Taixi oxidized coal. The results of XPS analysis showed that Taixi oxidized coal contained many oxygen functional groups. The results of our previous studies (conventional flotation tests using diesel as collector) indicated that Taixi oxidized coal was difficult to ...
Xia, Wencheng, Yang, Jianguo
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Desulfurization of coal by microbial column flotation

Biotechnology and Bioengineering, 1994
AbstractTwenty‐three strains capable of oxidizing iron were isolated from coal and ore storage sites as well as coal and ore mines, volcanic areas, and hot spring. Four strains were found to have high iron‐oxidizing activity. One strain (T‐4) was selected for this experiment since the strain showed the fastest leaching rate of iron and sulfate from ...
N, Ohmura, H, Saiki
openaire   +2 more sources

Effect of flotation promoter on the rate of coal slime flotation

Journal of Mining Science, 2014
The new flotation promoter (PGS) was synthesized with natural cottonseed oil and industrial by-products, and the new emulsified flotation agent (ZFC) for coal was prepared by 3% PGS promoter, 27% diesel oil and 70% water. The ZFC and diesel oil were used as collector to do the flotation rate experiments with two 1/3 coking coal samples, and first-level
W. Xie, G. Cao, X. Ren, Y. Li
openaire   +1 more source