Characteristics of the fired bricks with low-silicon iron tailings

Yang, Chuanlei; Cui, Chong; Qin, Juan; Cui, Xiaoyu

doi:10.1016/j.conbuildmat.2014.07.075

Cited by 106 publications

(39 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Compared to the blank, the germination rate increases by 30%. However, the germination rate decreases sharply for a dose larger than 4 g kg 21 Soil of Si-IOT. It may create soil salinity and the pakchoi seeds cannot grow well in the soil.…”

Section: Pot Experiments Resultsmentioning

confidence: 94%

“…The germination rates after applying Si-IOT are larger than those without Si-IOT. The germination rate is 80% for 4 g kg 21 Soil of Si-IOT. Compared to the blank, the germination rate increases by 30%.…”

Section: Pot Experiments Resultsmentioning

confidence: 99%

“…The allowable disposal method for iron tailings is outdoor stacking after solidification with curing agents and may cause soil contamination, river and underground water pollution, and other hazards [15]. The use of iron tailings to produce green and sustainable products such as concrete stabilizers [16], road materials [17], concrete aggregate [18,19], ceramic tiles [20], fired blocks [21], glass-ceramic tiles [22], and geo-polymer bricks [23] has been explored. The use of iron tailings to produce green and sustainable products such as concrete stabilizers [16], road materials [17], concrete aggregate [18,19], ceramic tiles [20], fired blocks [21], glass-ceramic tiles [22], and geo-polymer bricks [23] has been explored.…”

Section: Introductionmentioning

confidence: 99%

“…To satisfy environmental protection and sustainable development, proper utilization of iron tailings is a big issue. The use of iron tailings to produce green and sustainable products such as concrete stabilizers [16], road materials [17], concrete aggregate [18,19], ceramic tiles [20], fired blocks [21], glass-ceramic tiles [22], and geo-polymer bricks [23] has been explored. Moreover, IOTs have been used to treat heavy metal waste water [24,25].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Preparation and effectiveness of slow‐release silicon fertilizer by sintering with iron ore tailings

Zhang

Zhou

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

Recycling of iron ore tailings (IOT) which are by‐products of iron ore processing has attracted attention but there have been few studies on their use as fertilizers. In this study, slow‐release silicon fertilizers are prepared from iron tailings by solid‐phase sintering and characterized by X‐ray diffraction (XRD) and scanning electron microscopy (SEM). The solubility results acquired from the optimal sample (Si‐IOT) indicate that the available SiO2 is 20.77% and that of available K2O is 18.43% in 0.50 mol L−1 HCl. For 10 g of Si‐IOT in 200 mL of distilled water at 25°C, the cumulative release of K2O is 4.32% in the first day and 19.4% in 28 days and that of SiO2 is 2.12% in the first day and 16.30% in 28 days. The performance satisfies the Chinese national standard for slow‐release fertilizers and Chinese agricultural standard for silicon fertilizers. The results obtained from Si‐IOT pertaining to release of heavy metals indicate that heavy metals will not affect the quality of the crops and pakchoi growth is improved. Hence, they are potential raw materials for slow‐release silicon fertilizers. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1011–1019, 2018

show abstract

Section: Pot Experiments Resultsmentioning

confidence: 94%

Section: Pot Experiments Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation and effectiveness of slow‐release silicon fertilizer by sintering with iron ore tailings

Zhang

Zhou

et al. 2017

Env Prog and Sustain Energy

View full text Add to dashboard Cite

show abstract

“…In recent years, comprehensive utilization of tailings has been receiving considerable attention by most countries in the world, and many studies have been reported [5][6][7], for example, backfilling, preparation of building materials and recovery of valuable elements. Currently, the iron tailings is mainly reused as raw materials in producing building materials [8][9][10][11], such as these fields of fired bricks, foamed concrete, autoclaved bricks and cementitious materials. Using tailings to produce building materials not only can realize zero-emission of tailings wastes, but also would offer a new alternative raw material for building industry.…”

Section: Introductionmentioning

confidence: 99%

Recycling of low-silicon iron tailings in the production of lightweight aggregates

Yang¹,

Cui²,

Qin³

2015

Ceramics International

Self Cite

View full text Add to dashboard Cite

Thermoplastic polyurethane composites based on aluminum hypophosphite/modified iron tailings system with outstanding fire performance

Liu

Sun

et al. 2022

J of Applied Polymer Sci

View full text Add to dashboard Cite

Iron tailings (IT) is the remaining industrial solid waste after beneficiation. The accumulation of billion tons of tailings not only occupies valuable land resources but also causes serious environmental pollution and human harm. This work aims to explore the potential application of IT in flame retardant field. The modified iron tailings (MIT) were combined with aluminum hypophosphite (AHP) to prepare a series of TPU/AHP/MIT composites by melt blending method. Thermogravimetric (TGA) test indicated that MIT and AHP significantly improved the thermal stability of the composites. The char residue of TPU/AHP22.5/MIT2.5 was enhanced to 29.60 wt% compared with 27.51 wt% of TPU/AHP25. Cone calorimetry test (CCT) confirmed that PHRR and THR of TPU/AHP15/MIT10 were decreased by 88.4% and 55.2% compared with those of pure TPU. Adding 2.5 wt% MIT could reduce the gas production of the TPU/AHP system by 32.82%. Scanning electron microscopy (SEM) and Raman spectroscopy tests confirmed that AHP/MIT system could increase the thickness and graphitization degree of char residue for the TPU composites, and thus increase the thermal stability and fire resistance of the composites. Lastly, the possible fire retarding mechanism of TPU/AHP/MIT composites was illustrated. This work provided a novel strategy for utilization of IT.

show abstract

Characteristics of the fired bricks with low-silicon iron tailings

Cited by 106 publications

References 16 publications

Preparation and effectiveness of slow‐release silicon fertilizer by sintering with iron ore tailings

Preparation and effectiveness of slow‐release silicon fertilizer by sintering with iron ore tailings

Recycling of low-silicon iron tailings in the production of lightweight aggregates

Thermoplastic polyurethane composites based on aluminum hypophosphite/modified iron tailings system with outstanding fire performance

Contact Info

Product

Resources

About