Different Effects of Wet and Dry Grinding on the Activation of Iron Ore Tailings

Yang, Yingchun; Chen, Liqing; Mao, Yuguang

doi:10.32604/jrm.2021.015793

Cited by 10 publications

(3 citation statements)

References 39 publications

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“…In addition to above, some unique studies which can potentially contribute to meeting SDGs have been reported: e.g., analysis of grinding processes (Bu et al, 2019;2020;Krauze et al, 2021;Nava et al, 2020;Prziwara et al, 2020a;Toraman, 2013), characterization and utilization of ground products (Arsoy et al, 2017;Choi et al, 2016;Gomez et al, 2019;Guzzo et al, 2019;2020;Letelier et al, 2019;Liu et al, 2015;Makuza et al, 2021;Okazaki et al, 2022;Peltoniemi et al, 2020;Yang et al, 2021). However, the grinding mechanism considerably changes depending on the type of grinding machine, which makes it difficult to evaluate the energy efficiency using a unified standard.…”

Section: Possible Contribution Of Dry Grinding To Sdgsmentioning

confidence: 99%

Environmentally Friendly Green Synthesis of Fine Particles by Dry Mechanical Processes Toward SDGs: A Review

Iwasaki

2023

KONA

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The United Nations Sustainable Development Goals (SDGs) have attracted much attention due to increasing interest in global social, energy and environmental problems. The immediate contribution to the achievement of the SDGs is required in all individual and industrial activities. The industries dealing with fine particles are also no exception to the demand and have actively worked on the contribution. Conventionally, fine particles have been industrially synthesized in gas, liquid and solid phases using top-down and bottom-up approaches. Among them, dry synthesis processes are promising from a viewpoint of the SDGs due to the solvent-free and simplicity, which can lead to energy saving, efficient resource utilization, waste management, etc. This review describes dry mechanical processes for synthesis of fine particles, particularly focusing on grinding and mechanochemical treatment.

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Section: Possible Contribution Of Dry Grinding To Sdgsmentioning

confidence: 99%

Environmentally Friendly Green Synthesis of Fine Particles by Dry Mechanical Processes Toward SDGs: A Review

Iwasaki

2023

KONA

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“…Compared to traditional dry-milling, wet grinding shows higher efficiency and can avoid dust generation. Since most of IOTs are directly discharged into the river or exposed to rainwater, wet grinding can avoid the necessary pre-drying procedure in the traditional dry grinding [40]. More importantly, micro-IOTs are in a slurry state, which is easier to disperse evenly in SAC and conducive to the formation of a denser microstructure of SAC.…”

Section: Sem Analysismentioning

confidence: 99%

“…It was also reported that micron-size lithium slag could be obtained by wet milling, and the microparticles could be used as an accelerator to promote PC's early strength [36]. Our previous research demonstrated that IOTs with D50 = 6.203 μm were very difficult to obtain through dry grinding, but could be easily obtained using wet grinding technology [40]. These guided micro-IOTs slurry preparation by wet grinding, suggesting a new approach toward high-value utilization of IOTs powder in SAC system.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Micro-Iron Ore Tailings by Wet-Grinding and Its Application in Sulphoaluminate Cement

Yang¹,

Chen²,

Sun³

et al. 2022

Journal of Renewable Materials

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Herein, micro iron ore tailings (micro-IOTs) were prepared by wet-grinding and applied to improve sulphoaluminate cement (SAC) performance. The physicochemical properties of micro-IOTs were investigated by particle size analysis, XRD, and XPS. The hydrates trait and the hydration mechanism of micro-IOTs-SAC composite were studied by XRD, TGA, MIP, and SEM. The results demonstrated that micro-IOTs with an average grain diameter of 517 nm could be obtained by wet-grinding. The setting time of SAC gradually decreased with increasing micro-IOTs content. By adding 2% micro-IOTs, the compressive strengths of SAC pastes were enhanced about 22% and 10% at 4 h and 28 d, respectively. Moreover, the addition of micro-IOTs accelerated ettringite precipitation and changed its morphology, resulting in early strength improvement of the binary system. And increased later strength by micro-IOTs was closely related to the high content of AH 3 , fine pore structure, and high hydration degree of SAC. The findings suggested one new approach to utilize iron ore tailings in cementbased materials.

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Effect of thermal activation and particle size on cementitious activity of bauxite tailings

Zhou

Gou

Hou

et al. 2022

Environ Sci Pollut Res

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Different Effects of Wet and Dry Grinding on the Activation of Iron Ore Tailings

Cited by 10 publications

References 39 publications

Environmentally Friendly Green Synthesis of Fine Particles by Dry Mechanical Processes Toward SDGs: A Review

Environmentally Friendly Green Synthesis of Fine Particles by Dry Mechanical Processes Toward SDGs: A Review

Preparation of Micro-Iron Ore Tailings by Wet-Grinding and Its Application in Sulphoaluminate Cement

Effect of thermal activation and particle size on cementitious activity of bauxite tailings

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