Articles with "coal gangue" as a keyword



The variations of free radical and index gas CO in spontaneous combustion of coal gangue under different oxygen concentrations

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Published in 2021 at "Fire and Materials"

DOI: 10.1002/fam.3000

Abstract: In order to study the effect of oxygen concentrations on the change of active groups in the oxidation process of coal gangue, the airflows of different oxygen concentrations were prepared to simulate the oxidation and… read more here.

Keywords: gangue; oxygen concentrations; oxygen; coal gangue ... See more keywords

Effect of fixed carbon on the interfacial compatibility of coal gangue/polyethylene composites was investigated using anthracite as a model compound

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Published in 2024 at "Polymer Composites"

DOI: 10.1002/pc.28363

Abstract: Coal gangue (CG), a byproduct of coal mining, integrated with polyethylene (PE) offers potential in diverse applications. However, ensuring compatibility between CG and PE remains a challenge due to CG's complex nature. This study explores… read more here.

Keywords: carbon; coal; coal gangue; fixed carbon ... See more keywords

Turn "Waste" Into Wealth: MoO2 @coal Gangue Electrocatalyst with Amorphous/Crystalline Heterostructure for Efficient Li-O2 Batteries.

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Published in 2023 at "Small"

DOI: 10.1002/smll.202208145

Abstract: Unreasonable accumulation of coal gangue in mining area has become the major source of global pollution. Probing the high-valued utilization of coal gangue has become a key approach to address the problem. Herein, a promising… read more here.

Keywords: crystalline heterostructure; coal gangue; coal; amorphous crystalline ... See more keywords

Synthesis and characterization of zeolites NaA and NaX from coal gangue

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Published in 2018 at "Journal of Material Cycles and Waste Management"

DOI: 10.1007/s10163-017-0605-5

Abstract: Zeolites NaA and NaX were synthesized from initial coal gangue (milled sample) and pretreated coal gangue (calcinated and acid immersed sample) by an alkali fusion method prior to hydrothermal treatment, which started by mixing NaOH… read more here.

Keywords: coal gangue; naa nax; zeolites naa; alkali fusion ... See more keywords
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Immobilizatiaon of heavy metals in municipal solid waste incineration fly ash with red mud-coal gangue

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Published in 2020 at "Journal of Material Cycles and Waste Management"

DOI: 10.1007/s10163-020-01082-7

Abstract: In this research, Bayer red mud (RM) and coal gangue (CG) bend with a ratio of 8:2 was prepared as a geopolymer precursor (RG) through mechanochemistry-alkali activation. It was used for municipal solid waste incineration… read more here.

Keywords: red mud; coal gangue; municipal solid; heavy metals ... See more keywords

Characteristics, speciation, and bioavailability of mercury and methylmercury impacted by an abandoned coal gangue in southwestern China

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Published in 2019 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-019-06775-7

Abstract: During coal mining activities, a lot of coal gangue is produced, which usually contains high mercury (Hg) concentrations as well as the acid mine drainage (AMD) generator of pyrite. In the present study, the total… read more here.

Keywords: coal gangue; bioavailability; gangue; soil ... See more keywords

Characterization of dissolved organic matter derived from coal gangue packed in underground reservoirs of coal mines using fluorescence and absorbance spectroscopy

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Published in 2021 at "Environmental Science and Pollution Research"

DOI: 10.1007/s11356-020-11456-x

Abstract: Organic and nitrogen pollutants in mine water could be removed effectively during the storage and transport of water in a coal mine underground reservoir packed with coal gangue through various water-rock interactions. However, little is… read more here.

Keywords: underground reservoirs; coal gangue; dissolved organic; spectroscopy ... See more keywords

The real-time detection method for coal gangue based on YOLOv8s-GSC

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Published in 2024 at "Journal of Real-Time Image Processing"

DOI: 10.1007/s11554-024-01425-9

Abstract: To address the issues of complex algorithm models, poor accuracy, and low real-time performance in the coal industry's coal gangue sorting, a lightweight real-time detection method called YOLOv8s-GSC is proposed based on the characteristics of… read more here.

Keywords: detection; real time; time; coal gangue ... See more keywords
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Preparation of nano-sized Mg-doped copper silicate materials using coal gangue as the raw material and its characterization for CO2 adsorption

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Published in 2020 at "Korean Journal of Chemical Engineering"

DOI: 10.1007/s11814-020-0593-3

Abstract: This work presents a simple method for the preparation of the Mg-doped nanocomposite copper silicates (Mgx-Cu1−x-SiO3) (x=0.25, 0.5, 0.75 and 0.9) using coal gangue waste as the silicon source for CO2 capture at low temperature.… read more here.

Keywords: adsorption; co2 adsorption; coal gangue; using coal ... See more keywords

Porous mullite thermal insulators from coal gangue fabricated by a starch-based foam gel-casting method

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Published in 2017 at "Journal of the Australian Ceramic Society"

DOI: 10.1007/s41779-017-0035-9

Abstract: Porous mullite materials with high porosity of 71.8–88.2% were prepared by foaming of coal gangue/Al2O3/starch composite slurry and subsequent pore structure stabilization using starch consolidation and sintering. Coal gangue was recycled to prepare porous mullite… read more here.

Keywords: mullite foams; coal gangue; sized pores; porous mullite ... See more keywords

Combustion properties of coal gangue using thermogravimetry–Fourier transform infrared spectroscopy

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Published in 2017 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2017.01.083

Abstract: Abstract This study investigated the combustion properties of coal gangue (CG) from the Gongwusu coal mine in northern China. Three CG samples collected from various parts of the spontaneous combustion gangue dump were evaluated using… read more here.

Keywords: combustion properties; coal gangue; properties coal; combustion ... See more keywords