Factorial analysis of nano-precipitated calcium carbonate via a carbonation route using Solvay wastewater

Farrag, Nessren M.; Bayoumi, Rana Adel; Mohamed, Tamer A.

doi:10.1016/j.cscee.2022.100236

Cited by 3 publications

(5 citation statements)

References 30 publications

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“…Infrared (IR) spectroscopy can discern vibrations of Ca in various calcium carbonate structures. This aspect of analysis is discussed in existing literature 21–24 . The absorption bands of vaterite are categorized into four regions: ν 1 (symmetric stretching) at 1080 cm −1 , ν 2 (out‐of‐plane bending) at 876 cm −1 , ν 3 (doubly‐degenerate planar asymmetric stretching) at 1440 cm −1 , and ν 4 (doubly‐degenerate planar bending) at 744 cm −1 .…”

Section: Resultsmentioning

confidence: 99%

“…Interfacial mass transfer effects play a crucial role in gas–liquid reactions, influencing their progression. Due to the dissolution‐diffusion equilibrium state, the solution becomes unevenly distributed, leading to localized regions with elevated Ca 2+ concentrations, resulting in the formation of heterogeneous calcium carbonate products 24 . To counteract this, magnetic agitation was employed in the experiment to mitigate solution nonuniformity.…”

Section: Resultsmentioning

confidence: 99%

“…This aspect of analysis is discussed in existing literature. [21][22][23][24] The absorption bands of vaterite are categorized into four regions: ν 1 (symmetric stretching) at 1080 cm −1 , ν 2 (out-of-plane bending) at 876 cm −1 , ν 3 (doubly-degenerate planar asymmetric stretching) at 1440 cm −1 , and ν 4 (doubly-degenerate planar bending) at 744 cm −1 . Notably, a diagnostic peak at 712 cm −1 was observed in the sample with the lowest Ca 2+ concentration, indicating calcite presence.…”

Section: Effect Of Ph On Carbonated Productmentioning

confidence: 99%

“…Due to the dissolution-diffusion equilibrium state, the solution becomes unevenly distributed, leading to localized regions with elevated Ca 2+ concentrations, resulting in the formation of heterogeneous calcium carbonate products. 24 To counteract this, magnetic agitation was employed in the experiment to mitigate solution nonuniformity. Coating the precipitate's surface with Gly can delay nucleation time, 25 and magnetic stirring enhances solution mixing, leading to a more uniform reaction.…”

Section: Effect Of Additive On Carbonated Productmentioning

confidence: 99%

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Optimization of calcium carbide residue utilization for producing high‐quality calcium carbonate

Yang,

Li,

Xun

et al. 2023

Greenhouse Gases

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In light of the current situation where the utilization of calcium carbide slag yields low profits but holds significant potential for reducing carbon emissions, ammonium acetate was employed to leach calcium carbide slag. It also played a crucial role in regulating the products of indirect carbon dioxide carbonation when mixed with glycine and lye. Ammonium acetate's significance underscores its dual role in both the leaching and carbonation processes. This process yielded calcium carbonate with particle sizes smaller than 100 nm, with a purity of 98% and a single vaterite phase. The calcium carbide residue demonstrated an impressive CO2 uptake rate of 23.5%. Ammonium acetate exhibited an efficiency of 79.2% as a leaching agent. The ammonium acetate method demonstrated enhanced environmental friendliness and facilitated a more efficient carbon uptake rate of 23.5% compared to conventional indirect methods. Furthermore, the addition of lye, glycine, and ammonium acetate effectively extended the nucleation time of the calcium carbonate crystals and induced the formation of more vaterite intermediates with smaller particle sizes. The influence mechanism of compound additives on the carbonation reaction was revealed through kinetic analysis and molecular dynamics. This innovative approach offers a promising avenue for simultaneously treating solid waste and reducing CO2 emission. © 2023 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Effect Of Ph On Carbonated Productmentioning

confidence: 99%

Section: Effect Of Additive On Carbonated Productmentioning

confidence: 99%

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Optimization of calcium carbide residue utilization for producing high‐quality calcium carbonate

Yang,

Li,

Xun

et al. 2023

Greenhouse Gases

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“…PCC memiliki 3 polimorf kristal anhidrat yaitu kalsit (Altiner & Yildirim, 2017), veterit (Zhang et al, 2020), dan aragonit (Sari et al, 2022) dengan struktur rhombohedral, hexagonal dan orthorhombic (Sarkar & Mahapatra, 2010). PCC mempunyai nilai ekonomi yang tinggi karena memiliki keunggulan seperti ukuran partikel yang kecil (mikro), sifatnya yang mudah diatur, kehomogenanya yang tinggi serta keseragaman bentuk partikelnya tinggi (Farrag et al, 2022). Saat ini PCC telah digunakan dalam bidang kesehatan (Wu et al, 2014), makanan dan minuman, farmasi, industri kertas, plastik, mantel, tinta, cat, dan pipa polimer (Altiner et al, 2019).…”

Section: Pendahuluanunclassified

Penghilangan Kadar Klorine pada Precipitate Calcium Carbonate (PCC) dengan Proses Pencucian dan Filtrasi

Naldi,

Arief,

Desmiarti

et al. 2023

Eksergi

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ABSTRAK: Kualitas precipitated calcium carbonate (PCC) yang dapat digunakan di industri kertas dan cat harus bebas dari klorin, karena dapat menyebabkan korosi pada peralatan. Hasil penelitian skala pilot plant kapasitas 2 kg/jam, produk PCC masih mengandung klorin (0,73 s/d 2,02 %), sedangkan standar industri <0,001%. Penelitian ini bertujuan untuk menghilangkan kadar klorin dengan metoda pencucian dan filtrasi tanpa vakum dan metode kedua pencucian dan filtrasi dengan vacuum filter. Proses pencucian menggunakan air PDAM, air hujan dan aquadest dengan rasio PCC dengan air pencucinya yaitu 1:1, 1:2, 1:3 dan 1:4. PCC yang dihasilkan dari pilot plant dengan dua jenis PCC yaitu PCC dengan konsentrasi pelarut NH4Cl 12,5 g/L dan 50 g/L. Hasil penelitian menunjukkan penggunaan air PDAM dapat menurunkan kadar klorin 0,0322% (NH4Cl 12,5 g/L) dan 0,0959% (NH4Cl 50 g/L) dengan metoda pencucian dan filtrasi tanpa vakum dengan rasio 1:4. Kadar klorin yang diperoleh pada metode pencucian dan filtrasi dengan vacuum filter kadar klorin menjadi 0,0203% (pelarut NH4Cl 12,5 g/L) dan 0,0364% (pelarut NH4Cl 50 g/L). Morfologi PCC dipengaruhi konsentrasi NH4Cl. Kristal kalsit untuk konsentrasi NH4Cl (12,5 g/L) dan kristal aragonit untuk konsentrasi NH4Cl 50 g/L. Ukuran partikel yang diperoleh PCC 2 -5 µm. Kata Kunci: precipitated calcium carbonate; pencucian; filtrasi; klorin; kristal PCC

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Toward sustainable soda ash production: A critical review on eco-impacts, modifications, and innovative approaches

Rahimpour,

Fahmi,

Zinatloo-Ajabshir

2024

Results in Engineering

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Factorial analysis of nano-precipitated calcium carbonate via a carbonation route using Solvay wastewater

Cited by 3 publications

References 30 publications

Optimization of calcium carbide residue utilization for producing high‐quality calcium carbonate

Optimization of calcium carbide residue utilization for producing high‐quality calcium carbonate

Penghilangan Kadar Klorine pada Precipitate Calcium Carbonate (PCC) dengan Proses Pencucian dan Filtrasi

Toward sustainable soda ash production: A critical review on eco-impacts, modifications, and innovative approaches

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