Production and characterization of synthetic aragonite prepared from dolomite by eco-friendly leaching–carbonation process

Altıner, Mahmut; Yıldırım, Mehmet

doi:10.1016/j.apt.2016.10.024

Cited by 25 publications

(11 citation statements)

References 55 publications

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“…Limestone in Madura Island only has low value [2]. PCC has a full application in many industries; as a filler in paper, rubber, and plastic material, coatings [3,4]. The calcite phase PCC is widely used in the industry because of its superior appearance and bright colors [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Precipitated CaCO3 from Ankerite Prepared by Bubbling Method

Munawaroh¹,

Muharrami²,

Triwikantoro³

et al. 2019

KEG

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Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Precipitated CaCO3 from Ankerite Prepared by Bubbling Method

Munawaroh¹,

Muharrami²,

Triwikantoro³

et al. 2019

KEG

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“…The final product obtained in the range of 500–1100°C was composed of 99.98% MgO and 0.02% CaO. There were no impurities (i.e., SiO 2 , B 2 O 3 , Al 2 O 3 , Fe 2 O 3 , MnO, and PbO) detected in each product because the purification of the solution had been conducted before the carbonation experiment . Therefore, each product obtained can be used in many industrial applications such as toxic waste absorbent, ceramic material, and production of magnesium oxychloride cement.…”

Section: Resultsmentioning

confidence: 99%

Preparation of periclase (MgO) nanoparticles from dolomite by pyrohydrolysis–calcination processes

Altıner

Yıldırım

2017

Asia-Pacific J Chem Eng

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Dolomite is one of the most important resources for producing periclase (MgO) nanoparticles, which are of highly demanded in many industrial applications. For that reason, this study investigated to prepare MgO nanoparticles from dolomite through pyrohydrolysis–calcination processes. Each obtained product was characterized using X‐ray fluorescence, scanning electron microscope, X‐ray diffraction, and wet chemical and image processing analyses. Synthetic aragonite (CaCO3) crystals and CO2 gas were obtained as by‐products. The experimental results indicate that each obtained product was identified as a periclase mineral, and the production temperature played a curial role for producing pure MgO nanoparticles. However, the reactivity and particle size distribution of each product were strongly influenced by the production temperature. The particle size of the product obtained at various temperatures ranged from 180.05 nm to 6 μm depending on the production condition. We determined that the calcination process should be conducted to produce MgO nanoparticles. The proposed method brings a new perspective to researchers for the production of MgO nanoparticles from dolomite. © 2017 Curtin University and John Wiley & Sons, Ltd.

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“…Besides the purity of the solid phase, calcium carbonate with micron size and narrow particle size distribution is preferable for broad use and due to market demand. 1,10) Technology for the production of calcium carbonate with the properties mentioned above include two main routes: solid-liquid-gas route and liquid-liquid route. In the former, precipitated calcium carbonate (PCC) occurs on a time scale of seconds in a chemical reaction of two soluble salts, where as in the latter carbon dioxide is bubbled through solution as the source of carbonate ion.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting the Particle Size of Bio-Calcium Carbonate Synthesized from Industrial Eggshell Waste

2018

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Calcium carbonate is broadly used as a catalyst support, filler, additive, and reinforcement in several types of industry e.g. chemical, food, and biomedical industry. Recently, eggshell waste has attracted much attention for the purpose of calcium carbonate production due to its compost about 96% calcium carbonate. However, direct use of egg shells as filler material can probably cause product defects. In this research, calcium chloride was extracted from chicken-eggshell waste followed by precipitation of micron size calcium carbonate. The effect of agitation time, the initial concentration of calcium chloride and synthesis temperature on particle size, and selected physicochemical properties of this precipitated calcium carbonate (PCC) were investigated. Scanning electron micrographs of the prepared materials illustrated that all of the PCCs obtained from these experiments exhibit uniform-round shape. The laser diffraction results show that the median size of the PCC particles increased significantly from about 6 µm to 19 µm with increasing agitation time and with decreasing initial concentration of calcium chloride. However, increasing the synthesis temperature from 30°C to 160°C only slightly increased the median size of the PCC particles. The results of X-ray diffraction indicated that both agitation time and initial concentration also have an effect on the crystalline morphology of the PCCs. In addition, calcite crystalline phase became dominant over the other crystalline phases when agitation time and initial concentration were increased. In comparison, PCCs synthesized from this eggshell waste have much smaller median particle size than commercial calcium carbonate. Furthermore, the purity of the PCC derived from shell waste was comparable to commercial calcium carbonate. This facile synthesis is environmentally friendly and cost effective.

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Production and characterization of synthetic aragonite prepared from dolomite by eco-friendly leaching–carbonation process

Cited by 25 publications

References 55 publications

Synthesis and Characterization of Precipitated CaCO3 from Ankerite Prepared by Bubbling Method

Synthesis and Characterization of Precipitated CaCO3 from Ankerite Prepared by Bubbling Method

Preparation of periclase (MgO) nanoparticles from dolomite by pyrohydrolysis–calcination processes

Factors Affecting the Particle Size of Bio-Calcium Carbonate Synthesized from Industrial Eggshell Waste

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