Predicting Gaseous Pollution of Sintered Brick
Preparation from Yellow Phosphorus Slag

Ming, Jiang; Liu, Hongpan; Fan, Xide; Wang, Zhonghua

doi:10.15244/pjoes/89900

Cited by 9 publications

(2 citation statements)

References 12 publications

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“…Phosphorous slag is a by-product of granular industrial production in the yellow phosphorus industry. Generally, 8–10 tons phosphorous slag is produced for every 1 ton of yellow phosphorus product [7]. For instance, the amount of phosphorous slag exceeds 8.0 million tons annually, so the accumulation and pollution of phosphorus slag has become a serious problem in China [8].…”

Section: Introductionmentioning

confidence: 99%

Properties of Phosphorus-Slag-Based Cementitious Pastes for Stabilizing Lead

et al. 2019

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The properties and curing mechanism of leaded samples solidified with phosphorous-slag-based cementitious pastes are studied. The compressive strength, pH of percolate, and lead-ion concentrations of leaded samples stabilized with the phosphorous-slag-based cementitious pastes and cement were analyzed. Results confirmed that the phosphorous-slag-based cementitious paste performed much better than cement in terms of solidifying lead. The cured form of lead with phosphorous-slag-based cementitious pastes had higher compressive strength, lower lead leaching, and smaller change in pH. Higher lead content corresponded with more obvious advantagees of phosphorus-slag-based cementitious pastes and lower risk of environmental pollution. By means of X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and Energy Dispersive Spectrometer-Scanning Electron Microscope (EDS-SEM) analyses, we found that the hydration of phosphorus-slag-based cementitious pastes produced hydrated calcium silicate gels, ettringite and other minerals with large specific surface areas, as well as some leaded products that can combine with lead ions to form chemically stable leaded products. This finding well explained the high performance of phosphorus-slag-based cementitious pastes in terms of lead solidification and stabilization.

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Section: Introductionmentioning

confidence: 99%

Properties of Phosphorus-Slag-Based Cementitious Pastes for Stabilizing Lead

et al. 2019

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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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