Coal gangues i a solid waste during the coal mining process and the accumulation of coal gangue will harm the environment Therefore solid waste utilization of coal gangue is required to reduce the environmental damage
Basic principle progress and prospects of coal gangue ceramic proppants 、
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Ceramic Soc 42 133 143 Due to coal gangue concrete having higher brittleness and lower deformation resistance than ordinary concrete basalt fibre BF is a green high performance fibre
The invention belongs to the technical field of ceramic floor tiles and particularly relates to a coal gangue ceramic floor tile and a production process thereof The coal gangue ceramic floor tile is composed of the following raw materials 50 60% of coal gangue 5 12% of bentonite 7 10% of ironmaking water slag 10 22% of high silicon feldspar 5 12% of inner covering soil and 3 9%
The ceramic membrane is widely used in the field of domestic sewage treatment due to its high flexural strength acid and alkali corrosion resistance easy cleaning and other advantages
The heavy metals present in coal gangue can be classified into weak acid−soluble oxidizable reducible and residual states in which the weak acid soluble state is the easiest to release and the residual state is the most stable [25] [26] The leaching of heavy metals from coal gangue is not only closely related to the type and concentration of leaching agents but is also significantly
Recycling of coal gangue to prepare low density ceramic proppants for coal bed methane wells Ceramics Silikáty 63 3 315 320 2019 317 is indication of a mass loss of % The exothermic peak at 990 °C corresponds to the transformation of amorphous SiO 2 into cristobalite In Figure 1b three
Ceramic industry is the third largest silicate industry after cement and concrete industry [7] CG is rich in clay quartz and other minerals as well as silicon and aluminum element which is suitable for resource utilization in the ceramic industry and increases added value [8] In addition the high content of carbon content of CG makes it feasible to prepare environmentally
Coal gangue is a solid waste that is rich in SiO 2 and Al 2 O 3 making it a potential substitute for the preparation of ceramic proppants The use of coal gangue to prepare ceramic proppants can
To realize the effective utilization of the industrial waste coal gangue in this study β SiAlON multiphase ceramic material was successfully prepared using coal gangue as main raw material The thermodynamic analysis of β SiAlON synthesis was firstly performed
Coal gangue is a solid waste that is rich in SiO 2 and Al 2 O 3 making it a potential substitute for the preparation of ceramic proppants The use of coal gangue to prepare ceramic proppants can
Quantitative Inversion of Fixed Carbon Content in Coal Gangue Gangue is the main solid waste in coal mine areas In China there are more than 1700 coal waste piles totaling approximately billion tons with a rate of increase of 350 million tons per year [] The long term accumulation of a large amount of gangue will have a serious impact on the ecological environment of the mining
As a kind of solid waste rich in silicon and aluminium coal gangue can be used to prepare ceramic materials Therefore a new ceramic preparation process was proposed in this study to prepare ceramic binders for grinding wheels by geopolymerization The
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This article uses coal gangue and loess as the main raw material coal gangue loess = 8 2 calcium carbonate as the pore forming agent and carboxymethyl cellulose as the binder The ceramic membrane was prepared by extrusion molding method and solid particle sintering method
Preparation and characterization of low density ceramic proppant containing coal gangue additive 2017 Hao Jianying Gao Yunfeng Wu Yaqiao 《Materials Research Innovations》 0
The support of gangue ceramic membrane was prepared by using extrusion method with gangue and loess as the main raw materials carbon powder as the poro forming agent and carboxymethyl cellulose CMC as the binder The effects of sintering temperature and poro forming agent content on the physical and chemical properties of the support such
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Semantic Scholar extracted view of "Sustainable use of coal gangue and other wastes in lightweight material Physical mechanical environmental security and synergistic mechanisms" by Taoyong Liu et al Isothermal foaming nucleation crystallization of glass ceramic foams with hierarchical pore structure a sustainable approach for disposal
ceramic particle 25 30% coal gangue ceramic sand 1% steelfiber and % polypropylene fiber The grey prediction model GM 1 5 is obtained
