
Carbide slag drying

Resource utilization of solid waste carbide slag: a brief
The huge production capacity of calcium carbide is accompanied by a large number of solid waste carbide slag Due to the immature treatment technology of carbide slag, a large number of 2019年5月23日 Carbide slag (acetylene sludge) is the industrial residue, which is discharged when the hydrolysis of calcium carbide is undertaken to prepare acetylene The slag mainly Comprehensive Utilization of Carbide Slag SpringerLinkCarbide slag is a calciumrich residue produced as a byproduct in ethyne gas production industry Besides calcium, carbide slag contains other residual minerals like magnesium, iron and Carbide Slag an overview ScienceDirect TopicsIssues existing in the plant were analyzed in detail, which included feeding and drying of calcium carbide slag, the operation of raw meal preparation and mills, the safe operation of clinker Application technology of calcium carbide slag: a case
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Research on Utilizable Calcium from Calcium
2024年2月26日 The carbide slag was dried in a blastdrying oven for 12 h prior to the experiment to remove moisture and weighed Based on the L/S and NH 4 + /Ca in the experimental research, a specific volume and concentration of 2022年7月14日 Carbide slag (CS) is the main byproduct of acetylene production by calcium carbide With the rapid development of polyvinyl chloride (PVC) industry, the output of calcium Desulphurization mechanism and engineering practice of carbide slag 2020年7月20日 In this study, granulated blastfurnace slag was treated by wet grinding to promote its reactivity (ie WGGBS), and carbide slag (CS), one kind of industrial wastes, was Utilization of carbide slaggranulated blast furnace slag 2018年9月24日 The calcium carbide slag content (α CCS) of 10% can be determined for the minimum effect of the dryingwetting cycle on the strength of the treated specimen An Experimental Studies on Drying‐Wetting Cycle

Durability Analysis of Industrial Waste Stabilized Sludge
2024年4月18日 This study explores the application of calcium carbide residue, desulfurization gypsum, and ground granulated blast slag as curing agents to solidify sludge Through indoor experiments simulating dry–wet cycles and sulfate erosion, using unconfined compressive strength (UCS), Xray diffraction, and scanning electron microscope as testing methods, the 2022年10月3日 The high water content and viscosity make construction mud extremely difficult to manage, causing land occupation and environmental pollution problems This research aims to investigate the durability of ground granulated blast furnace slag (S) and calcium carbide residue (CCR), two industrial byproducts, solidified waste mud under wetting–drying cycles, and Study on Compressive Strength and Microstructure of SlagThe huge production capacity of calcium carbide is accompanied by a large number of solid waste carbide slag Due to the immature treatment technology of carbide slag, a large number of carbide slag are stacked onsite, resulting in land occupation, airdryingResource utilization of solid waste carbide slag: a brief review 2020年9月4日 Dryprocess calcium carbide slag is a large amount of calciumbased solid waste produced in the process of making acetylene by the calcium carbide process, in which residual calcium carbide and acetylene gas have a greater impact on resource utilizationProperties analysis of dryprocess calcium carbide slag and

CO2 mineralization of carbide slag for the production of
2022年3月1日 Currently, the carbide slag with high CaO content is usually stacked in residue field, easily draining away with the rain and corroding the soil In this work, we coupled the treatment of flue gas and carbide slag to propose a facile CO 2 mineralization route to prepare light calcium carbonate and the dry density was 857 kg/m 3 The orders 2020年5月10日 As a latent hydraulic material, the effect of lime slag and magnesiaactivated GGBS on soil stabilization has been investigated, and the results show that the activated GGBS works better to improve the unconfined compressive strength (UCS) compared with cement [7], [15] Carbide slag (CS) is an industrial byproduct of the calcium carbideStrength properties of dredged soil at high water content 2024年6月6日 The alkaliactivated blast furnace slag is attracting significant attention in replacing Portland cement due to several characteristics similar to cement hydration However, there are a few practical problems with commercial alkali activators, such as the fast setting time, relatively high costs, and significant CO2 emissions during preparation Thus, discovering Compressive Strength and Microstructure of Carbide Slag 2022年11月18日 on carbide slag was studied in the laboratory, and the process parameters of carbide slag desulfurization were explored and optimized The specic surface area, pore distribution, and other physicochemical parameters were analyzed by XRD and which is CaO after drying and dehydration The mass fraction of calcium is about 60 ~ 70%, and the slurryDesulphurization mechanism and engineering practice
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Solid wastebased drymix mortar using fly ash, carbide slag,
2022年11月1日 Therefore, the use of FA, carbide slag and desulfurized gypsum instead of OPC, and coal gangue instead of quartz sand, can reduce the cost, energy requirements, and emissions of drymixed mortar, while also utilizing solid waste resources and promoting the development of solid waste in the construction material industry2023年7月4日 Solidifying shield muck with calcium carbide slag and fly ash as curing agents was proposed as a highly efficient method for reusing waste shield muck The compaction test, unconfined compression test, and dry–wet cycle test were used to evaluate the compressive strength, water immersion stability, and durability of the cured soil The stress–strain curve and Stabilization of Shield Muck Treated with Calcium Carbide Slag 2020年5月1日 Li and Xiong [52,53] used dry and wet carbide slag to replace limestone to produce cement, which reduced energy consumption, cost, and CO 2 emissionsLife Cycle Assessment of Comprehensive Utilization of Calcium Carbide 5 The last issue is the necessity to deal with the explosionproof system and the dust collection and disposal of dry calcium carbide slag The moisture content of dry calcium carbide slag is about 3~10 wt% And due to the phenomenon of Application technology of calcium carbide slag:
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Influence of WetDry Cycles on Compressive Strength of Calcium Carbide
2013年5月15日 This article studies the durability of the calcium carbide residue (CCR) and fly ash (FA) stabilized silty clay against wetting and drying cycles to ascertain its performance in pavement applications The durability test on the CCRFA stabilized clay samples compacted on dry and wet sides of optimum was performed according to the ASTM2020年7月20日 Carbide slag (CS) is the solid waste generated in the process of acetylene production and mainly contains Ca(OH) 2 and CaCO 3 as well as small amounts of MgO, SiO 2, Al 2 O 3, Fe 2 O 3 [49], [50]With the increase of acetylene demand, the emission of carbide slag is growing continuously and it is estimated that around 56 × 10 7 tonnes are produced Utilization of carbide slaggranulated blast furnace slag 2024年2月26日 The carbide slag was dried in a blastdrying oven for 12 h prior to the experiment to remove moisture and weighed Based on the L/S and NH 4 + /Ca in the experimental research, a specific volume and concentration of extractant solution was prepared and reacted with the carbide slag in a conical flask in a closed manner After the reaction was Research on Utilizable Calcium from Calcium Carbide Slag 2023年11月14日 Carbide slag (CS), which is usually disposed of as sludge in open spaces by firms producing acetylene gas, poses environmental hazards This study compares the strength and stiffness of expansive clay stabilized with CS and hydrated lime The influence of the curing period (28 and 120 days), postcompaction moisture variation, stress (deviator and confining) Influence of Carbide Slag Stabilization on the ShortTerm

Resource utilization of solid waste carbide slag: a brief
2022年3月1日 carbide slag in enterprises that use both dry and wet carbide slag as raw materials to produce cement clinker, the firstline wet carbide slag has high moisture (about 30%) and is easy 2021年2月1日 CaC 2 reacts with water to produce acetylene and calcium carbide slag (CCS) as a solid waste for polyvinyl chloride production Approximate 40 million tons of dry CCS are generated annually in China, among which only a small part is used in cement and as desulfurization agentsMechanical properties and microstructure of binding material using slag 2024年7月1日 Carbide slag is the byproduct of industrial preparation of the acetylene gas, whose main component is calcium hydroxide (Liu et al, 2020; Philbert et al, 2021)To produce 1 ton of acetylene gas, 12–18 tons of carbide slag are produced (Altiner, 2019)China is the largest calcium carbide manufacturing country in the world, and its total emissions of carbide slag are Preparation of calcium carbonate with microstructure and 2024年1月1日 Carbide slagderived alkaline condition was identified as the dominant contributor and drove 7483–8393 % of total sludge hydrolysis, while other carbide slag components and fermentation environment provided less contributions of 714–2109 % and 408–995 %, respectively The divalent cations in carbide slag provided negative Two wastes into one resource: Carbide slagdriven anaerobic
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Carbide slag recycling to fabricate shapestable phase
2023年4月1日 The mining and processing of traditional skeleton materials inevitably generates carbon emissions and pollutes the surrounding environment To make full use of industrial solid waste, this work innovatively used carbide slag as skeleton material and Na 2 CO 3 as phase change material (PCM) to fabricate shapestable phase change composites (SSPCCs) via the The invention relates to a method for extracting highpurity calcium oxide from carbide slag The method is characterized by comprising the following steps: drying the carbide slag; carrying out high temperature roasting pretreatment; preparing carbide slag emulsion; carrying out centrifugal separation to produce a calcium chloride leaching liquid; acidifying the leaching liquid; adding a CNA Method for extracting highpurity2024年10月15日 Carbide slag (CS) is a typical alkaline solid waste with Ca(OH) 2 as its main component, exhibiting a high capacity for CO 2 mineralization Currently, the methods for CS mineralization of CO 2 include direct and indirect mineralization which the initial pH of the reaction system plays a crucial role in the mineralization process In this study, we explored the effects Optimizing carbonation reaction parameters of calcium carbide slag Carbide slag, a solid waste produced during the acetylene production process using the calcium carbide method, has recently gained significant attention regarding its disposal strategies (Sun et al, 2024)The main component of carbide slag is Ca(OH) 2, a common industrial waste that can be directly used as a calciumbased additive for copyrolysis with sludgeEnhancement of apatitephosphorusrich biochar

Preparation and curing method of red mudcalcium carbide slag
2023年5月1日 Calcium carbide slag (CS) is a byproduct of the hydrolysis of calcium carbide to produce acetylene, containing more than 80% calcium hydroxide and thus presents a high alkalinity [23]Its large production volume challenges the disposal of CS, and currently CS is mainly dealt with by pilling and landfilling, which not only occupies a large amount of land 2024年6月1日 The objective of this study is to investigate the influence of the calcium carbide slag (CCS) The effects of CCS on the fluidity, setting time, volume drying shrinkage, and compressive strength of cement pastes mixed under direct CO 2 injection conditions were investigated Changes in mineral compositions and carbon sequestration efficiency Effects of calcium carbide slag on properties and carbon Issues existing in the plant were analyzed in detail, which included feeding and drying of calcium carbide slag, the operation of raw meal preparation and mills, the safe operation of clinker calcination, the research and development of the preheater and explosion Application technology of calcium carbide slag: a case 2024年9月1日 In this study, the chemical shrinkage of calcium carbide residuewaste red brick powder cementitious materials pastes (CWCP) was tested using two different methods, and the shrinkage mechanism of drying shrinkage and chemical shrinkage was analyzed The products at different stages of material shrinkage were studied by means of Fourier transform infrared Chemical shrinkage and drying shrinkage of calcium carbide

Experimental study on engineering properties of fiber
2022年4月14日 Carbide slag has been used to prepare solidified soil to effectively reduce the stacking and disposal of carbide slag and achieve efficient resource utilization Because of the significant brittleness and low strength of carbideslagstabilized soil, fibers were added to carbideslagstabilized soil in this experimental study The effects of fiber length and fiber 2023年9月15日 The use of calcium carbide sludge (CCS) as a substitute for limestone is an effective method for reducing CO 2 emissions in the cement industry In this study, a life cycle assessment (LCA) was performed to assess the greenhouse gas (GHG) emission reduction potential of CCS cement clinker compared to that of Portland cement clinkerLife cycle assessment of beneficial use of calcium carbide 2024年4月18日 This study explores the application of calcium carbide residue, desulfurization gypsum, and ground granulated blast slag as curing agents to solidify sludge Through indoor experiments simulating dry–wet cycles and sulfate erosion, using unconfined compressive strength (UCS), Xray diffraction, and scanning electron microscope as testing methods, the Durability Analysis of Industrial Waste Stabilized Sludge2022年10月3日 The high water content and viscosity make construction mud extremely difficult to manage, causing land occupation and environmental pollution problems This research aims to investigate the durability of ground granulated blast furnace slag (S) and calcium carbide residue (CCR), two industrial byproducts, solidified waste mud under wetting–drying cycles, and Study on Compressive Strength and Microstructure of Slag
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Resource utilization of solid waste carbide slag: a brief review
The huge production capacity of calcium carbide is accompanied by a large number of solid waste carbide slag Due to the immature treatment technology of carbide slag, a large number of carbide slag are stacked onsite, resulting in land occupation, airdrying2020年9月4日 Dryprocess calcium carbide slag is a large amount of calciumbased solid waste produced in the process of making acetylene by the calcium carbide process, in which residual calcium carbide and acetylene gas have a greater impact on resource utilizationProperties analysis of dryprocess calcium carbide slag and 2022年3月1日 Currently, the carbide slag with high CaO content is usually stacked in residue field, easily draining away with the rain and corroding the soil In this work, we coupled the treatment of flue gas and carbide slag to propose a facile CO 2 mineralization route to prepare light calcium carbonate and the dry density was 857 kg/m 3 The orders CO2 mineralization of carbide slag for the production of 2020年5月10日 As a latent hydraulic material, the effect of lime slag and magnesiaactivated GGBS on soil stabilization has been investigated, and the results show that the activated GGBS works better to improve the unconfined compressive strength (UCS) compared with cement [7], [15] Carbide slag (CS) is an industrial byproduct of the calcium carbideStrength properties of dredged soil at high water content
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Compressive Strength and Microstructure of Carbide Slag
2024年6月6日 The alkaliactivated blast furnace slag is attracting significant attention in replacing Portland cement due to several characteristics similar to cement hydration However, there are a few practical problems with commercial alkali activators, such as the fast setting time, relatively high costs, and significant CO2 emissions during preparation Thus, discovering 2022年11月18日 on carbide slag was studied in the laboratory, and the process parameters of carbide slag desulfurization were explored and optimized The specic surface area, pore distribution, and other physicochemical parameters were analyzed by XRD and which is CaO after drying and dehydration The mass fraction of calcium is about 60 ~ 70%, and the slurryDesulphurization mechanism and engineering practice 2022年11月1日 Therefore, the use of FA, carbide slag and desulfurized gypsum instead of OPC, and coal gangue instead of quartz sand, can reduce the cost, energy requirements, and emissions of drymixed mortar, while also utilizing solid waste resources and promoting the development of solid waste in the construction material industrySolid wastebased drymix mortar using fly ash, carbide slag, 2023年7月4日 Solidifying shield muck with calcium carbide slag and fly ash as curing agents was proposed as a highly efficient method for reusing waste shield muck The compaction test, unconfined compression test, and dry–wet cycle test were used to evaluate the compressive strength, water immersion stability, and durability of the cured soil The stress–strain curve and Stabilization of Shield Muck Treated with Calcium Carbide Slag