A5011366562- Bauxite Residue and Utilization
- Recycling and utilization of industrial and municipal waste in materials production
- Extraction and Separation Processes
- Aluminum Alloys Composites Properties
- Molten salt chemistry and electrochemical processes
- Recycling and Waste Management Techniques
- Coal and Its By-products
- Advancements in Battery Materials
- Graphite, nuclear technology, radiation studies
- Aluminum Alloy Microstructure Properties
- Fluoride Effects and Removal
- Clay minerals and soil interactions
- Fiber-reinforced polymer composites
- Induction Heating and Inverter Technology
- Concrete and Cement Materials Research
- Iron and Steelmaking Processes
- Supercapacitor Materials and Fabrication
- Advanced Battery Technologies Research
- Minerals Flotation and Separation Techniques
- Fluid Dynamics and Heat Transfer
- Combustion and flame dynamics
- Phosphorus and nutrient management
- Fluid Dynamics and Mixing
- Thermochemical Biomass Conversion Processes
- Enhanced Oil Recovery Techniques
University of Science and Technology Beijing
2019-2024
Shanghai Institute of Quality Inspection and Technical Research
2011
Coal gangue is the solid waste from coal mining process. About 1 billion tons of discharged every year in world. usually piled up large areas and difficult to be used. Phase transformation separation alumina silica minerals are studied this paper order prompt resource utilization gangue. The results show that phase kaolinite during high-temperature calcination following way: → metakaolin spinel mullite. Active mineral released transition process, which can separated other by caustic...
Coal gangue is a solid waste discharged during coal mining, which not only occupies large land resources but also brings about certain risks to the environment. The alumina and silica minerals in are major difficult separate from each other, hinders resource utilization of gangue. catalytic effect various additives on phase transformation process studied this paper strengthen separation increase rate study results show that silica-containing can be promoted transform into mullite by...
The emission of hazardous aluminum dross is increasing with the rapid development China's industry. It not only a waste valuable resources, but also serious ecological problem. Aluminum dross, calcium based additives, and trace alkaline additives are used for roasting reactions to achieve high-temperature synergistic detoxification. A new method extracting elements from has been proposed. research results indicate that small amount sodium carbonate added calcination system can enable Na2O...
The aluminum dross generated during the alloy processing and regeneration process contains a large amount of harmful highly reactive nitride salts, which can cause environmental pollution. A novel method for preparing calcium aluminate by dry calcification is proposed in this paper to extract valuable resources while achieving efficient detoxification. Detection methods such as XRD, XRF, standard dissolution procedures have been applied characterize phase transition reaction behavior...
Reaction characteristics in pyrometallurgical treatment for aluminum dross were studied qualitatively and quantitatively by thermal analysis. The transformation of nitride (AlN), volatilization chlorides fluorides two kinds under both argon (Ar) Ar-Oxygen (O2) atmospheres detail analyzed compared. Gas species including water vapor (H2O(g)), ammonia (NH3), nitrogen (N2), nitric oxide (NO), carbon dioxide (CO2) clearly identified. study indicated that N2 small amount NO produced from AlN–O2...
Secondary aluminum dross (SAD) is a hazardous solid waste discharged from electrolysis and processing the secondary industries, which causes severe environmental pollution public health disasters. The stable presence of α-Al2O3 MgAl2O4 phases in SAD makes it difficult for to be efficiently utilized. A combined dry pressing alkaline roasting process was proposed extracting valuable Al element SAD. Two additives (NaOH Na2CO3) were selected as sodium source order perform thermodynamic analysis...
The collaborative detoxification and extraction of valuable resources from various industrial wastes are proposed based on the composition characteristics toxic properties different solid/hazardous such as coal gangue, aluminum dross, red mud, spent cathode carbon blocks, carbide slag. coupling reaction mechanism or components aluminum, sodium, silicon, calcium, iron, fluorine, nitrogen in was studied order to explore potential value waste. results show that alumina sodium efficiently...
The continuous growth of the aluminum electrolysis industry has produced large amounts electrolytic dross (EAD) as a waste product, which lacks proper recycling methods and poses serious environmental pollution risks. A short clean process for EAD is proposed involving preparation anode protection rings, can effectively reduce corrosion steel stubs, improve quality molten aluminum, return to reduction cells alumina fluoride after being broken. phase transition path Al(OH)3 in denitrified by...
In metallurgical and chemical engineering processes, the gas–liquid–liquid multiphase flow phenomenon is often encountered. The movement of bubbles in liquid, influence on liquid–liquid interface, have been focus extensive research. present work, an air–water–oil system was used to explore that occurs when pass through interface with various oil viscosities at gas rates. results show bubble greatly influenced by viscosity low type phase entrainment jet height changed increasing rate....
Abstract The three-dimensional (3-D) comprehensive mathematical model was developed to simulate the coal gasification process in an entrained flow gasifier with a swirl burner. models employed or includes devolatilization model, char combustion and gas homogeneous reaction random-trajectory turbulence P-1 radiation model. solution of executed based on computational fluid dynamics (CFD). By qualitatively comparing results at different number, significant influences characteristics such as...