Preparation of Calcium Magnesium Acetate Snow Melting Agent Using Raw Calcium Acetate-Rich Made from Eggshells

Zhang, Huilan; Zhang, Zhongyu; Zhao, Yuting; Liu, Ying

doi:10.1007/s12649-019-00920-6

Cited by 10 publications

(7 citation statements)

References 28 publications

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“…In the preparation of calcium acetate, compared with other studies (Zhang et al, 2019), we not only increased the number of preparation parameters, including temperature, solid-liquid ratio, acetic acid dosage, primary reaction time and secondary reaction time, but also used the RSM to comprehensively consider the test. The RSM fits the complex unknown function piping system in a small area with a simple one letter or quadratic polynomial model.…”

Section: Optimization Of Calcium Acetate Preparationmentioning

confidence: 99%

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Optimization of preparation of calcium acetate from eggshell by Response Surface Methodology (RSM)

et al. 2022

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Response surface methodology (RSM) was used to investigate the preparation-process parameters on calcium acetate from eggshell. Box-Behnken was employed for experimental design, and the optimal combination of reaction temperature, solidliquid ratio, acetic acid concentration, primary reaction time and secondary reaction time for preparing calcium acetate was analyzed. Multiple regression analysis was used to fit the experimental data to the second-order polynomial equation, and appropriate statistical methods were used for analysis. The results showed that the optimum preparation conditions of calcium acetate were as follows: reaction temperature of 39 °C, solid-liquid ratio of 1:12, acetic acid concentration of 159%, primary reaction time 1.5 h and secondary reaction time of 80min. Under the optimum preparation conditions, the experimental yield of calcium acetate was 96.5%, which was in good agreement with the predicted value.

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Section: Optimization Of Calcium Acetate Preparationmentioning

confidence: 99%

“…There are studies on the preparation of calcium acetate from egg shells by ultrasonic neutralization and suction filtration (Zhang et al, 2019), and the preparation of calcium acetate from shells by RSM (Lee et al, 2015a, b). However, the preparation of calcium acetate from eggshells through RSM has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Optimization of preparation of calcium acetate from eggshell by Response Surface Methodology (RSM)

et al. 2022

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“…This work presents an alternative way to produce CA instead of using nonrenewable resources and also helps to avoid various significant adverse environmental effects. CA has been produced from eggshells [45, 46], but only shells of black snail [47], littleneck clam [48], and oyster [3] have been used for synthesizing CA compound. The different physicochemical properties of the CA compounds depend on the preparation method including various preparation conditions such as acetic acid concentration and reaction time.…”

Section: Introductionmentioning

confidence: 99%

Simple and Rapid Synthesis of Calcium Acetate from Scallop Shells to Reduce Environmental Issues

Thongkam

Saelim

Boonchom

et al. 2021

Adsorption Science & Technology

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The search for sustainable resources remains a subject of global interest. Calcium acetate used in many fields was prepared using waste scallop shell as a raw material, and its physicochemical properties were investigated. The waste scallop shells were transformed to calcium acetate compounds by reactions with four acetic acid concentrations at ambient temperature until the completely dried powder is obtained. The maximum yield of 87% with short reaction time at a low temperature was observed in the reaction of 60%w/w acetic acid with scallop shells. Thermal transformation reactions of all prepared calcium acetate samples revealed temperature conditions for heating to produce other advanced materials. FTIR and XRD results confirmed the purity and solid phase of all prepared calcium acetate samples, and they were compared with those of literatures and found to be well consistent. The obtained timber-like particles have different sizes depending on the acetic acid concentration. This work reports an easy and low-cost method with no environmental effect to produce cheap calcium products to be used in the industry.

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“…There is a band from 3550 symmetric mode to 3120 cm −1 asymmetric mode which corresponds to the secondary amines of the PEI, an asymmetric mode of C–H at 2922 cm −1 (TEA), two symmetric vibrations of –CH 2 in PEI at 2843 and 2787 cm −1 , and two vibration peaks at 1656 and 1107 cm −1 associated to the secondary and tertiary amines of the PEI and TEA, respectively. The asymmetric and symmetric stretching for the magnesium acetate appeared at 1589 and 1402 cm −1 , respectively, and weak bands are also observed at 1313 and 1054 cm −1 due to symmetric deformation and rocking CH 3 mode [ 74 , 75 , 76 , 77 ]. Finally, a peak deformation C=O mode occur at 590 cm −1 , these spectral features indicate that the surface of the magnesium acetate precursor is covered by the PEI and TEA residuals.…”

Section: Resultsmentioning

confidence: 99%

Two-Step Triethylamine-Based Synthesis of MgO Nanoparticles and Their Antibacterial Effect against Pathogenic Bacteria

et al. 2021

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Magnesium oxide nanoparticles (MgO NPs) were obtained by the calcination of precursor microparticles (PM) synthesized by a novel triethylamine-based precipitation method. Scanning electron microscopy (SEM) revealed a mean size of 120 nm for the MgO NPs. The results of the characterizations for MgO NPs support the suggestion that our material has the capacity to attack, and have an antibacterial effect against, Gram-negative and Gram-positive bacteria strains. The ability of the MgO NPs to produce reactive oxygen species (ROS), such as superoxide anion radicals (O2•-) or hydrogen peroxide (H2O2), was demonstrated by the corresponding quantitative assays. The MgO antibacterial activity was evaluated against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli bacteria, with minimum inhibitory concentrations (MICs) of 250 and 500 ppm on the microdilution assays, respectively. Structural changes in the bacteria, such as membrane collapse; surface changes, such as vesicular formation; and changes in the longitudinal and horizontal sizes, as well as the circumference, were observed using atomic force microscopy (AFM). The lipidic peroxidation of the bacterial membranes was quantified, and finally, a bactericidal mechanism for the MgO NPs was also proposed.

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Preparation of Calcium Magnesium Acetate Snow Melting Agent Using Raw Calcium Acetate-Rich Made from Eggshells

Cited by 10 publications

References 28 publications

Optimization of preparation of calcium acetate from eggshell by Response Surface Methodology (RSM)

Optimization of preparation of calcium acetate from eggshell by Response Surface Methodology (RSM)

Simple and Rapid Synthesis of Calcium Acetate from Scallop Shells to Reduce Environmental Issues

Two-Step Triethylamine-Based Synthesis of MgO Nanoparticles and Their Antibacterial Effect against Pathogenic Bacteria

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