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2019121 · The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization ...
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The main objective of this study was to utilize coal gangue as the primary raw material and SiC as the foaming agent to successfully prepare foamed ce…
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20191024 · This research aims to explore the effect of ultrasound irradiation as a pretreatment method on the reverse flotation of phosphates. Ultrasonic treatment was used prior to flotation at various ultrasound intensities. The feed sample containing 10.34% P2O5 and 48.01% CaO was obtained from Lar mountain located in southwest of Iran. Flotation …
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equacies that were being experienced with column and conventional flotation cells. From the first commercial installation at Mt Isa in 1989, which was for sulphide treatment followed by the first coal installation at Newlands in 1990, it has been continuously developed and improved to improve performance and make it more robust and easier to use. Over 150 …
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201411 · In this study, the mobility behavior of trace elements in coal gangue from the Huainan Coalfield was studied to evaluate the potential eco-toxicity of the trace elements. Sequential extraction was employed to analyze the fractionation behavior of …
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2022930 · Finally, there are great differences between coal gangue ceramsite concrete and ordinary concrete in the variation of compressive strength with time and the relationship between elastic modulus ...
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201721 · The mineralogy of the coal-series kaolin was studied by several methods such as X-ray diffraction (XRD), X-ray fluorescence (XRF), particle size distribution and SEM/EDS analyses. The mineralogy demonstrated that pyrite was the main occurrence of iron in the coal-series kaolin. The influence of grinding time and pH on the flotation was ...
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2023921 · In this study, the research aim is to enhance the activity index of activated coal gangue and study its activation mechanism. The activation process of coal gangue was optimized through orthogonal tests, and the Back-Propagation (BP) neural network model was improved using a genetic algorithm. With the effects of grinding duration, calcination …
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2019114 · Abstract Coal flotation wastes from of OOO MMK–UGOL’ were studied using a semiquantitative method; air and fire shrinkage, sintering, refractoriness, and tensile strength were determined. It has been proposed to use the wastes in an amount of 10–30% as an inert and combustible additive to clay mixtures for ceramic brick production by a …
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2019121 · Abstract. The amount of coal gangue, a by-product of coal mining and washing, is rapidly increasing with the growing trend of energy consumption. The accumulated coal gangue without appropriate utilization has resulted in a squander of resources, waste disposal and environmental pollution issues. Over the past few …
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