A promising strategy for the large-scale preparation of spherical calcium carbonate by efficiently using carbon dioxide

Ma, Jing; Ji, Junrong; Muhammad, Yaseen; Chen, Xiaopeng; Liao, Dankui; Tong, Zhangfa

doi:10.1016/j.jcou.2022.102136

Cited by 5 publications

(4 citation statements)

References 58 publications

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“…Among the polymorph modifications of CaCO 3 , the metastable vaterite is the most practical inorganic filler and reinforcing agent in the pharmaceutical industry, the paper industry, and the rubber industry [ 42 , 43 , 44 ]. Vaterite is usually prepared by coprecipitation and carbonation in industry [ 45 ]. However, both methods have the problem that vaterite with good crystal form and particle size can only be prepared in aqueous solution with low Ca 2+ concentration [ 45 ].…”

Section: Introductionmentioning

confidence: 99%

“…Vaterite is usually prepared by coprecipitation and carbonation in industry [ 45 ]. However, both methods have the problem that vaterite with good crystal form and particle size can only be prepared in aqueous solution with low Ca 2+ concentration [ 45 ]. Increased Ca 2+ concentration leads to a transformation of the crystalline form, with the coexistence of vaterite and calcite [ 46 ].…”

Section: Introductionmentioning

confidence: 99%

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Research on Utilizable Calcium from Calcium Carbide Slag with Different Extractors and Its Effect on CO2 Mineralization

Ma,

Zhang,

et al. 2024

Materials

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With the increasing accumulation of alkaline industrial solid waste, the mineralization of CO2 using alkaline industrial solid waste has broad application prospects. Carbide slag is highly alkaline and contains a large amount of calcium elements, making it an excellent material for CO2 mineralization. Our idea was to acquire qualified products and fast kinetics by integrating carbide slag utilization and carbon reduction. The reaction route was divided into two steps: calcium extraction and carbonization. In order to achieve efficient extraction of utilizable calcium, we selected NH4Ac as the extraction agent, which has the advantage of buffer protection and environmental friendliness due to being an acetate radical. The extraction efficiency of utilizable calcium exceeded 90% under the conditions of L/S 20:1 and NH4+/Ca2+ 2:1. In the carbonization process, the crystal forms of CaCO3 synthesized by direct carbonation, acid extraction, and ammonium salt were characterized. The formation mechanism of vaterite in ammonium solution and the influence of impurities (Al3+, Mg2+) on the crystal transformation were revealed. This study provides technical support for using alkaline industrial waste to prepare high-purity vaterite. Therefore, alkaline industrial waste can be efficiently and sustainably utilized through CO2 mineralization.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on Utilizable Calcium from Calcium Carbide Slag with Different Extractors and Its Effect on CO2 Mineralization

Ma,

Zhang,

et al. 2024

Materials

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“…Ma et al. [ 20 ] used polyethyleneimine (PEI) (as a crystal modifier) and high concentrations of calcium hydroxide to efficiently prepare spherical calcium carbonate particles via the carbonization method; they obtained spherical calcium carbonate particles with a particle size of ≈1 µm.…”

Section: Introductionmentioning

confidence: 99%

“…Yu et al [19] used sodium carbonate and calcium chloride to prepare monodispersed spherical calcium carbonate particles with a size of ≈1-2 μm via a simple precipitation reaction in the presence of poly(maleic anhydride) (PMA) or poly(sodium 4-styrenesulfonate) (PSSS). Ma et al [20] used polyethyleneimine (PEI) (as a crystal modifier) and high concentrations of calcium hydroxide to efficiently prepare spherical calcium carbonate particles via the carbonization method; they obtained spherical calcium carbonate particles with a particle size of ≈1 μm.…”

Section: Introductionmentioning

confidence: 99%

Nano‐Calcium Carbonate with Core–Shell Structure was Prepared by Dopamine Chelation Using Pluronic F‐127 as Template

Shu,

Gong,

Zhang

et al. 2024

Part & Part Syst Charact

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Herein, a new template carbonization method is used to prepare calcite‐type nano‐calcium carbonate (CaCO3) with a core–shell structure using calcium hydroxide as a solute and Pluronic F‐127 as a templating and pore‐forming agent. Dopamine hydrochloride is added to control the size of calcium hydroxide particles. The morphology, particle size, and crystal type of CaCO3 are characterized via transmission electron microscopy, X‐ray diffraction, nanoparticle size, and zeta potentiometer. The creation of core–shell calcium carbonate nanoparticles is examined in relation to reaction circumstances (i.e., additive sequence, additive amount, and additive mixing time), carbonization temperature, liquid flow rate, and templates with varying chain lengths. Furthermore, a discussion is held regarding the formation mechanism of spherical core–shell calcium carbonate that is created using the innovative template carbonization method. The results show that the order, amount, liquid flow rate, and template type of additives have a significant effect on the crystal shape of calcium carbonate nanoparticles. The mixing time of additives has a significant effect on the particle size of calcium carbonate nanoparticles. Interestingly, the thickness of the shell depends on the carbonization temperature, and too slow or too fast flow rate will lead to the formation of cyclic calcium carbonate nanoparticles.

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Conservation of aged paper using reduced cellulose nanofibrils/aminopropyltriethoxysilane modified CaCO3 particles coating

Li,

Tang,

Jiang

et al. 2024

International Journal of Biological Macromolecules

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A promising strategy for the large-scale preparation of spherical calcium carbonate by efficiently using carbon dioxide

Cited by 5 publications

References 58 publications

Research on Utilizable Calcium from Calcium Carbide Slag with Different Extractors and Its Effect on CO2 Mineralization

Research on Utilizable Calcium from Calcium Carbide Slag with Different Extractors and Its Effect on CO2 Mineralization

Nano‐Calcium Carbonate with Core–Shell Structure was Prepared by Dopamine Chelation Using Pluronic F‐127 as Template

Conservation of aged paper using reduced cellulose nanofibrils/aminopropyltriethoxysilane modified CaCO3 particles coating

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