Reaction between CaO and Fe&lt;sub&gt;3&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; under CO–CO&lt;sub&gt;2&lt;/sub&gt; Atmosphere at 800°C–1100°C

Su, Zijian; Zhang, Yuanbo; Chen, Yingming; Li, Guanghui; Jiang, Tao

doi:10.2355/isijinternational.isijint-2016-455

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…Figure 5 demonstrated that it was easy to get high Fe recovery and iron grade of the magnetic materials as the temperature increased from 700 to 850 °C, meanwhile, the tin content in the magnetic materials decreased obviously from 0.268 wt.% to 0.089 wt.%. However, as the roasting temperature increased further to 900 °C and 1000 °C, the iron recovery and iron grade of magnetic materials decreased while the tin content increased slightly, which was attributed to the formation of Ca-Fe-Sn-O and Ca-Fe-O compounds at higher temperature 32,33 .…”

Section: Resultsmentioning

confidence: 98%

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

Chen

et al. 2019

Sci Rep

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Tin-, iron-bearing tailing is a typically hazardous solid waste in China, which contains plenty of valuable tin, iron elements and is not utilized effectively. In this study, a multistage utilization process was put forward to get the utmost out of the valuable elements (tin and iron) from the tailings, and a gradient-recovery method with three procedures was demonstrated: (1) An activated roasting followed by magnetic separation process was conducted under CO-CO2 atmosphere, tin and iron were efficiently separated during magnetic separation process, and 90.8 wt% iron was enriched in magnetic materials while tin entered into non-magnetic materials; (2) The tin-enriched non-magnetic materials were briquetted with CaCl2 and anthracite and roasted, then tin-rich dusts were collected during the chloridizing roasting process; (3) The roasted briquettes were infiltrated in melting NaNO3 to prepare NaNO3/C-PCMs by a infiltration method. Three kinds of products were obtained from the tailings by the novel process: magnetic concentrates containing 64.53 wt.% TFe, tin-rich dusts containg 52.4 wt.% TSn and NaNO3/C-PCMs for high temperature heat storage. Such a comprehensive and clean utilization method for tin-, iron-bearing tailings produced no secondary hazardous solid wastes, and had great potential for practical application.

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Section: Resultsmentioning

confidence: 98%

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

Chen

et al. 2019

Sci Rep

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“…All three samples have the prevalent phase that corresponds to Ca 2 Fe 2 O 5 (PDF 96-901-4372). Two small peaks identied at 2q values of 20°and 43°correspond to Fe 3 O 4 (PDF 96-210-7250), 52,53 a by-product of the wet precipitation method. Fig.…”

Section: Resultsmentioning

confidence: 99%

Investigating the activity of Ca₂Fe₂O₅ additives on the thermochemical energy storage performance of limestone waste

Anwar,

Vijayaraghavan,

McNally

et al. 2023

RSC Adv.

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“…Additionally, some papers have proven that Ca promotes the recovery of lattice oxygen from Fe-based OCs. 100,101 However, the details of this synergistic effect are still unknown. Liu et al 102 systematically studied the synergistic reactivity of spinel NiMn 2 O 4 using thermogravimetric analysis (TGA) and theoretical calculations.…”

Section: Complex-metal Oxygenmentioning

confidence: 99%

“…The results showed that the CL reactivity could potentially be related to the oxygen transformation between lattice oxygen and oxygen vacancy (as shown in Figure ), which potentially affects their CL reactivity and stability. Additionally, some papers have proven that Ca promotes the recovery of lattice oxygen from Fe-based OCs. , However, the details of this synergistic effect are still unknown. Liu et al systematically studied the synergistic reactivity of spinel NiMn 2 O 4 using thermogravimetric analysis (TGA) and theoretical calculations.…”

Section: Migration and Transformation Of Oc’s Lattice Oxygenmentioning

confidence: 99%

Review on Migration and Transformation of Lattice Oxygen during Chemical Looping Conversion: Advances and Perspectives

Song

Lin

et al. 2023

Energy Fuels

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Chemical looping technology is one of the most promising approaches in the fields of fuel conversion, pollution removal, energy conservation, and carbon dioxide capture and utilization and has been extensively investigated for more than two decades. A majority of the chemical looping process is achieved through the migration and transformation of lattice oxygen. Thus, exploring the migration and transformation of lattice oxygen is critical to clarify chemical looping’s reaction rules to allow for further control of reaction selectivity and yield. Herein, recent advances in the exploration of lattice oxygen’s migration mechanism are systematically reviewed, with a focus on structure–activity relationships. The great roles that characterization techniques perform to address the challenges in exploring the migration mechanism of lattice oxygen activities are discussed first. We then outline the categories of oxygen carrier materials and the migration mechanism of lattice oxygen. Lastly, the most promising research directions that design high-performance oxygen carriers with well-regulated lattice oxygen activity through the redox reaction mechanism are overviewed. We infer that the research on the relationship between lattice oxygen activity and target products is challenging but essentialit is a direction worthy of our efforts in the future.

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Reaction between CaO and Fe<sub>3</sub>O<sub>4</sub> under CO–CO<sub>2</sub> Atmosphere at 800°C–1100°C

Cited by 9 publications

References 15 publications

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

Investigating the activity of Ca₂Fe₂O₅ additives on the thermochemical energy storage performance of limestone waste

Review on Migration and Transformation of Lattice Oxygen during Chemical Looping Conversion: Advances and Perspectives

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Reaction between CaO and Fe<sub>3</sub>O<sub>4</sub> under CO–CO<sub>2</sub> Atmosphere at 800°C–1100°C

Cited by 9 publications

References 15 publications

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

A value-added multistage utilization process for the gradient-recovery tin, iron and preparing composite phase change materials (C-PCMs) from tailings

Investigating the activity of Ca2Fe2O5 additives on the thermochemical energy storage performance of limestone waste

Review on Migration and Transformation of Lattice Oxygen during Chemical Looping Conversion: Advances and Perspectives

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Investigating the activity of Ca₂Fe₂O₅ additives on the thermochemical energy storage performance of limestone waste