A review of comprehensive utilization of red mud

Mi, Hongcheng; Yi, Liang; Wu, Qian; Xia, Jin Lan; Zhang, Binghang

doi:10.1177/0734242x221107987

Cited by 16 publications

(4 citation statements)

References 126 publications

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“…Meanwhile, FA and QS were selected as auxiliary sintering materials to supply the silicon-aluminum phase in the raw materials. Furthermore, a small amount of RM was added caused of its property of containing iron phases that could be used as a foaming agent at relatively high temperatures, reducing the density of the ceramsite, and also serving as a flux component during granulation (Mi et al, 2021;Mi et al, 2022). According to Riley's ternary phase diagram (Riley, 1951), the content of SiO 2 , Al 2 O 3 , and fusing components in the green body should be controlled within a certain range, in order to achieve a good sintering performance for preparation of the ceramsite.…”

Section: Raw Materialsmentioning

confidence: 99%

“…The decomposition temperature of Fe 2 O 3 under high temperatures was generally between 800 °C and 1550 °C. The decomposition reaction occurred in a wide temperature range and belonged to a slowrelease type (Mi et al, 2022).…”

Section: Raw Materialsmentioning

confidence: 99%

“…However, with the depletion of natural mineral resources and the increasingly stringent environmental regulations, industrial wastes were becoming a substitute for natural raw materials in the building ceramsite production. The reported industrial solid wastes that have been used for the preparation of building ceramsites include tailings (Wang et al, 2014;Li et al, 2020), municipal sludge (Qi et al, 2009), red mud (RM) (Mi et al, 2021;Mi et al, 2022), and fly ash (FA) (Qin et al, 2015), which contain abundant silicon-aluminum components to obtain good properties. Meanwhile, previous studies indicate that ODCPRs have similar components to ordinary industrial solid wastes, which was also a proper candidate to generate sintering ceramsites.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of lightweight and high-strength building ceramsites with oil-based drilling cuttings pyrolysis residues

Wang,

Li,

Lin

et al. 2023

Front. Mater.

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With the continuing advancement in China’s exploration and development technologies of shale gas resources, there was a significant increase in shale gas oil-based drilling cuttings. In this paper, oil-based drilling cutting pyrolysis residues (ODCPRs) was used as the main raw material for preparing lightweight and high-strength building ceramsites to eliminate the environmental risks and recycle industrial waste. Firstly, orthogonal experiments were used to study the influences of raw material composition, preheating temperature, preheating time, sintering temperature, and sintering time on the properties of building ceramsites. From the results, the sintering temperature and the content of ODCPRs were discovered to be the key factors affecting the sintering process of ceramsites. Secondly, the influences of sintering temperature and heating rate on the properties of building ceramists were further explored to find the optimum sintering conditions. When the content of ODCPRs in the ceramsite was set to be 50%, the obtained building ceramsites presented excellent properties with particle compressive strength of 6.31 MPa, bulk density of 575.11 kg/m3, apparent density of 1097.24 kg/m3, and the water absorption of 1.89%. Finally, XRD, SEM, TG-DSC, and heavy metal leaching experiments were comprehensively conducted to analyze the composition structure variation and sintering mechanism of the building ceramsite. This paper presents an approach for the recycling, utilization, and disposal of oil-based drilling cuttings in the oil field waste management.

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Section: Raw Materialsmentioning

confidence: 99%

Section: Raw Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of lightweight and high-strength building ceramsites with oil-based drilling cuttings pyrolysis residues

Wang,

Li,

Lin

et al. 2023

Front. Mater.

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“…RM can be recycled and reused by recovering valuable metals, producing building materials [8], etc. Chavan et al [9] used RM to partially replace cement to prepare concrete.…”

Section: Introductionmentioning

confidence: 99%

Engineering Properties and Microstructure of Soils Stabilized by Red-Mud-Based Cementitious Material

Li,

Huang,

Chen

et al. 2024

Materials

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Red mud (RM) is an industrial waste generated in the process of aluminum refinement. The recycling and reusing of RM have become urgent problems to be solved. To explore the feasibility of using RM in geotechnical engineering, this study combined magnesium oxide (MgO) (or calcium oxide (CaO)) with RM as an RM-based binder, which was then used to stabilize the soil. The physical, mechanical, and micro-structural properties of the stabilized soil were investigated. As the content of MgO or CaO in the mixture increased, the unconfined compressive strength (UCS) of the RM-based cementitious materials first increased and then decreased. For the soils stabilized with RM–MgO or RM–CaO, the UCS increased and then decreased, reaching a maximum at RM:MgO = 5:5 or RM:CaO = 8:2. The addition of sodium hydroxide (NaOH) promoted the hydration reaction. The UCS enhancement ranged from 8.09% to 66.67% for the RM–MgO stabilized soils and 204.6% to 346.6% for the RM–CaO stabilized soils. The optimum ratio of the RM–MgO stabilized soil (with NaOH) was 2:8, while that of the RM–CaO stabilized soil (with NaOH) was 4:6. Freeze–thaw cycles reduced the UCS of the stabilized soil, but the resistance of the stabilized soil to freeze–thaw erosion was significantly improved by the addition of RM–MgO or RM–CaO, and the soil stabilized with RM–MgO had better freeze–thaw resistance than that with RM–CaO. The hydrated magnesium silicate generated by the RM–MgO stabilized soil and the hydrated calcium silicate generated by the RM–CaO stabilized soil helped to improve the UCS of the stabilized soil. The freeze–thaw cycles did not weaken the formation of hydration products in the stabilized soil but could result in physical damage to the stabilized soils. The decrease in the UCS of the stabilized soil was mainly due to physical damage.

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Life Cycle Assessment of Red Mud-Based Geopolymer Production at Industrial Scale

Adelfio,

Sgarbossa,

Leone

et al. 2023

IFIP Advances in Information and Communication Technology

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A review of comprehensive utilization of red mud

Cited by 16 publications

References 126 publications

Preparation and properties of lightweight and high-strength building ceramsites with oil-based drilling cuttings pyrolysis residues

Preparation and properties of lightweight and high-strength building ceramsites with oil-based drilling cuttings pyrolysis residues

Engineering Properties and Microstructure of Soils Stabilized by Red-Mud-Based Cementitious Material

Life Cycle Assessment of Red Mud-Based Geopolymer Production at Industrial Scale

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