Effect of Fe2O3 on the crystallization behavior of glass-ceramics produced from naturally cooled yellow phosphorus furnace slag

Hongpan, Liu; Huang, Xiaofeng; Ma, Liping; Chen, Dan-li; Zhibiao, Shang; Ming, Jiang

doi:10.1007/s12613-017-1410-9

Cited by 24 publications

(3 citation statements)

References 20 publications

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“…In the Fe5 sample, the growth of columnar crystals was facilitated, and the agglomeration of columnar crystals gradually appeared, as shown in Figure 12d. In the elemental distribution images, Fe was distributed homogenously in the crystal and glass phases, which is consistent with the previous literature [31]. Previous research demonstrated that the prevention of Cr 2 O 3 precipitating in the glass matrix as a form of chromium spinel crystallites during the cooling stage of glass is mainly responsible for the reduction of viscosity.…”

Section: Effect Of Blast Furnace Slag Percentage On Diopside-based Gl...supporting

confidence: 90%

Recycling of Blast Furnace Slag and Fluorite Tailings into Diopside-Based Glass-Ceramics with Various Nucleating Agents’ Addition

et al. 2021

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Diopside-based glass-ceramics are successfully produced by recycling blast furnace slag and fluorite tailing with the addition of supplementary elements such as TiO2, Fe2O3 and Cr2O3 as nucleation agents, using a conventional melting method. The effects of various nucleating agents on the phase components and structure of the prepared glass-ceramics were evaluated by a differential scanning calorimeter, X-ray diffraction and scanning electron microscope–energy disperse spectrometer methods to determine the optimal dosage of nucleating agents. The results show that, in the preparation of diopside-based glass-ceramics, the suitable percentages of blast furnace and fluorite tailing are 55% and 45%, and the recommended composite nucleating agents consist of 1.5% Cr2O3, 2% TiO2 and 3% Fe2O3. Heat treatment was conducted at a nucleation temperature of 720 °C and a crystallization temperature of 920 °C, and the nucleation and crystallization durations were 1.0 h and 1.5 h, respectively. Under the abovementioned parameters, the obtained diopside-based glass-ceramics displayed a Vickers hardness of 7.12 GPa, density of 2.95 g·cm−3, water absorption of 0.02%, acid resistance of 0.23% and alkali resistance of 0.02%.

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Section: Effect Of Blast Furnace Slag Percentage On Diopside-based Gl...supporting

confidence: 90%

Recycling of Blast Furnace Slag and Fluorite Tailings into Diopside-Based Glass-Ceramics with Various Nucleating Agents’ Addition

et al. 2021

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“…Figure 5 presents the XRD of the cementitious materials in the concrete specimen and the raw materials. e XRD results show that the main mineral phase of the YPS was vitreous because there was insufficient time for crystallization and a large number of amorphous active reticular or glass structures were formed inside the YPS when the phosphorus slag was treated by water quenching from the high-temperature amorphous melt [52,53]. ere was a great quantity of calcium aluminum oxide in the RM, which could promote the generation and growth of the cementing materials.…”

Section: Role Of Rm In the Microstructure Formation Of Rm-yps-ccmentioning

confidence: 99%

Study on the Preparation and Fracture Behavior of Red Mud-Yellow Phosphorus Slag-Based Concrete

Zhang

Mao

et al. 2019

Advances in Materials Science and Engineering

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Serious environmental pollution issues caused by the storage and exposure of large amounts of red mud (RM) and yellow phosphorus slag (YPS) have raised significant concerns. Red mud-yellow phosphorous slag-cement concrete (RM-YPS-CC) is prepared with 25% yellow phosphorus slag content (YPSC) and 10% red mud content (RMC) to replace a portion of the cement at the age of 28 days and was found in this study to satisfy the mechanical property requirements. More ettringite and portlandite were generated with the RM-YPS-CC than with the yellow phosphorous slag-cement concrete (YPS-CC). In addition, the cementitious materials were more interlaced, and there was more disorder in the crystals of the RM-YPS-CC, which formed a more complex spatial structure than the YPS-CC did. Without RM, the initial cracking strength on the surface of the concrete was 5–6 MPa, the maximum crack width was 3.96 mm, and the crack number was 8. However, the cracking strength was 26.5–27 MPa with RMC5, the maximum crack width was 0.66 mm with RMC15, and the crack number was 3 with RMC15. Moreover, studies using the digital image correlation (DIC) method indicated that the displacement distribution and evolution of the first crack area changed quickly at 10 MPa in either horizontal or vertical direction, and a similar trend was maintained from 10 MPa to 27.1 MPa for the YPS-CC. However, with a small distribution and evolution of horizontal or vertical displacement from 5 MPa to 25 MPa, the evolution would change rapidly when reaching 30 MPa for RM-YPS-CC. This study aims to provide new insights into the wide application of YPS and RM for saving energy and reducing emissions and to develop a new method to study the fracture behavior of concrete.

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“…In China, about 80,00,000 tons of yellow phosphorus slag is produced every year, which can produce 7-10 Mt of calcium carbonate in theory. At present, the slag is mainly used in the field of producing sintered brick [19], glass ceramics [20], and concrete [21]. As far as we know, there are no reports on using yellow phosphorus slag to produce fibrous aragonite.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag

et al. 2020

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AbstractIn this study, a procedure for producing calcium carbonate whisker through yellow phosphorus slag carbonation without adding any crystal control agents was proposed. The influence of process parameters on the crystal phase and morphology of the product was discussed. The content of aragonite in the product was more than 90% under optimal conditions. The whiteness of the product was 97.6%. The diameter of a single particle was about 1.5–3 μm, and the length of a single particle was about 8–40 μm. Various polymorphs and morphologies of CaCO3 could be formed by adjusting the production conditions. The by-products produced during the whole preparation process could also be reused. The whole preparation process of fibrous aragonite from yellow phosphorus slag without using any chemical additives was also proposed. These indicated that the production strategy had a good application prospect.

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Effect of Fe2O3 on the crystallization behavior of glass-ceramics produced from naturally cooled yellow phosphorus furnace slag

Cited by 24 publications

References 20 publications

Recycling of Blast Furnace Slag and Fluorite Tailings into Diopside-Based Glass-Ceramics with Various Nucleating Agents’ Addition

Recycling of Blast Furnace Slag and Fluorite Tailings into Diopside-Based Glass-Ceramics with Various Nucleating Agents’ Addition

Study on the Preparation and Fracture Behavior of Red Mud-Yellow Phosphorus Slag-Based Concrete

Synthesis and characterization of calcium carbonate whisker from yellow phosphorus slag

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