Synthesis of precipitated Calcium Carbonate (PCC) From Lime Rock Nature Methods Caustic Soda (Studies Concentration HNO3)

Azkiya, Noor Isnaini; Prasetia, Fanny; Putri, Elsa Desyta; Rosiana, Anggita; Wardhani, Sri

doi:10.19184/jid.v17i1.2670

Cited by 4 publications

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References 2 publications

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“…The utilization of HNO3 as a solvent in the preparation of PCC is a modification of the PCC preparation using the caustic soda method by Azkiya et al (2016). Modification with acidic solvents could increase the solubility of CaO compared to hydration with H2O alone.…”

Section: Resultsmentioning

confidence: 99%

“…Carbonate (PCC) (Azkiya et al, 2016) Ale-ale shells were washed, dried with various particle sizes of 40 mesh, 60 mesh, and 80 mesh, and calcined at a temperature of 800°C for 4 hours. A total of 5.6 g of each calcined product was added to a beaker glass and added with 20 mL of 6 M HNO3 and distilled water until the volume reached 200 mL, then stirred using a magnetic stirrer at 700 rpm 65°C for 30 minutes.…”

Section: Synthesis Of Precipitated Calciummentioning

confidence: 99%

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Adsorption of Organic Compounds in Leachate using Precipitated Calcium Carbonate (PCC) from Ale-Ale Shells

Maulidya

2022

JSTK

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Leachate waste from piles of garbage in the landfill (TPA) has a high concentration of Chemical Oxygen Demand (COD). High COD concentrations can cause a decrease in dissolved oxygen concentrations in the waters. Simple leachate treatment is carried out using the adsorption method with adsorbents derived from food waste. This research used Precipitated Calcium Carbonate (PCC) adsorbent from ale-ale shells. This study aims to evaluate the effect of particle size and calcination temperature variations on PCC yield and analyze the adsorption ability of PCC adsorbents in reducing COD concentrations. In addition, PCC was characterized using an infrared spectrophotometer (FTIR) and an X-ray diffractometer (XRD). Determination of COD concentration was carried out by permanganometric titration. The optimum PCC yield of 57.75% was obtained from Ale-ale shells with a particle size of 40 mesh with a calcination temperature of 800°C. The functional groups in PCC are C-O at wave numbers 1403 cm -1 , 873 cm -1 , and 713 cm -1 . XRD characterization showed the presence of a calcite phase with a high peak intensity at 2𝜃 = 29.38°. The adsorption of organic matter on leachate by PCC (4.5 g/50 mL) with a stirring speed of 200 rpm for 240 minutes reduced the COD concentration of leachate from 1131.28 mg/L to 456.94 mg/L with an adsorption efficiency of 59.61%.

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Section: Resultsmentioning

confidence: 99%

Section: Synthesis Of Precipitated Calciummentioning

confidence: 99%

Adsorption of Organic Compounds in Leachate using Precipitated Calcium Carbonate (PCC) from Ale-Ale Shells

Maulidya

2022

JSTK

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Influence of synthesis conditions on the calcium carbonate microparticle properties obtained by homogeneous and heterogeneous precipitation

Arkhypova

Smotraiev

Sorochkina

et al. 2020

Braz. J. Chem. Eng.

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CaCO 3 microparticles were obtained by chemical precipitation from CaCl 2 solution using Na 2 CO 3 or (NH 4) 2 CO 3 solutions (heterogeneous precipitation) or carbamide (homogeneous precipitation) as precipitation agents. The effects of various experimental conditions, such as the temperature, duration and reagent ratio on the properties of precipitated CaCO 3 were experimentally investigated. It was found that the shape of particles and CaCO 3 polymorphs depended on the precipitation agent and process temperature; the size of particles-on the reagent ratio, the precipitation agent and the deposition time. Biphasic calcite-vaterite spherical microparticles with the highest polydispersity coefficient (K = 0.98 with an average particle size l n ≈ 3 μm) were obtained using Na 2 CO 3 solution as a precipitation agent under low temperature (20 °C). Calcite rhombohedral crystals (l n ≈ 3 μm) were obtained using carbamide at high temperature (100 °C). Increasing the temperature of Na 2 CO 3 and (NH 4) 2 CO 3 solutions (70-100 °C) led to formation of the biphasic aragonite-calcite druses of needle crystals (druses size ≈ 10-30 μm). Increasing the aging time for sediments in the mother liquor up to 1 h did not affect the shape of CaCO 3 particles.

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Synthesis of hydroxyapatite from limestone by using precipitation method

Sirait

Sinulingga

Siregar

et al. 2020

J. Phys.: Conf. Ser.

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Hydroxyapatite from limestone was synthesized by precipitation method. During the synthesization, the temperature of a 200 mesh sample was increased to 600°C for 3 hours. It was transformed CaCO3 into CaO powder. Then the CaO powder was dissolved with water to get Ca(OH)2, then it dissolved with H3PO4 0.3M as a source of phosphate. The solution was mixed by using magnetic stirrer with a speed of 300 rpm for 1 hour. Then NH4OH 1M solution was periodically dropped to that the solution until it became an alkaline with pH 10. The solution was stood for 24 hours and the precipitate was dried by using an oven in 120°C for 5 hours. Hydroxyapatite powder obtained was characterized by FTIR to see the major functional groups that are formed in hydroxyapatite limestone. The results obtained were 3 functional major groups that are phosphate (PO4 3−), carbonate (CO3 2−) and hydroxyl (OH−) on hydroxyapatite limestone.

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Synthesis of precipitated Calcium Carbonate (PCC) From Lime Rock Nature Methods Caustic Soda (Studies Concentration HNO3)

Cited by 4 publications

References 2 publications

Adsorption of Organic Compounds in Leachate using Precipitated Calcium Carbonate (PCC) from Ale-Ale Shells

Adsorption of Organic Compounds in Leachate using Precipitated Calcium Carbonate (PCC) from Ale-Ale Shells

Influence of synthesis conditions on the calcium carbonate microparticle properties obtained by homogeneous and heterogeneous precipitation

Synthesis of hydroxyapatite from limestone by using precipitation method

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