Overview of alginate extraction processes: Impact on …
The extraction process parameters play a key role and significantly influence the quality of alginate and the extraction yield. Innovative technologies have the potential to enhance extraction capacity, improve process efficiency, and …
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Liquid-liquid extraction of calcium using ionic liquids in …
The previous researches show that the liquid-liquid extraction method is the best method for the separation of stable calcium isotopes. On the other hand, due to the benefits of ionic liquids and microfluidic systems, our study is based on the use of this type of material and systems for liquid-liquid extraction and enrichment of the calcium-48.
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Optimization of synergistic extraction of calcium ion via an …
The maximum efficiency of calcium extraction was found to be at a DC18C6 concentration of 0.035 M, feed phase pH of 4.0, W/O/W stirring time of 23.4 min, and feed/emulsion volume ratio of 2.3. Under the optimum conditions, the maximum calcium extraction efficiency was predicted to be 99.45% and a value of 1.0 was …
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Extraction of Calcium Phosphate from Animal Bones – IJERT
Calcium Phosphate is one of the most important compounds for our body or for industrial experimental in the recent time. As the need for Calcium Phosphate has been increasing, its production must be increased using cheaper and eco-friendly raw materials. So this paper is a summary of the attempt to extract Calcium phosphate from animal …
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Synthesis and Characterization of Calcium Carbonate …
Meanwhile, calcium carbonate from seashells such as green mussel and crab shells is relatively safe for human consumption and medical applications. The market price of medical-grade calcium carbonate can be as high as USD 1600 per ton . PCC stands for Precipitated Calcium Carbonate, also known as purified, refined, or synthetic …
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Extraction and degradation rate analysis of calcium …
Additionally, the accelerated interaction between the calcium phosphate samples and the PBS solution led to the formation of an apatite layer. Significantly, the calcium phosphate extracted from Atlantic Bonito (AB) fish bones exhibits considerable potential for use in bone substitute materials.
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Extraction of Iron from Hematite | Cambridge (CIE) IGCSE …
Revision notes on Extraction of Iron from Hematite for the Cambridge (CIE) IGCSE Chemistry syllabus, written by the Chemistry experts at Save My Exams.
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Eggshell calcium: A cheap alternative to expensive …
Calcium extraction from eggshells is easier and can be used to fortify foods with calcium to fulfil dietary calcium requirements of the population. Eggshells are also beneficial for various industries where the calcium extracted from them can be used as catalyst or as a raw material. To put it in a nut shell, eggshells have many benefits, but ...
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Tuning acid extraction of magnesium and calcium from …
One study used the pH swing process to extract magnesium and calcium from pyroxene-rich PGM tailings, and found that oxalic acid generally promoted Ca extraction, while Mg was mainly extracted via proton attack from mineral acids. 24 These results suggest that both organic and mineral acids might be necessary to maximize the …
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Review on the extraction of calcium supplements from …
Calcium extraction methods used for eggshells. Due to the abundance of eggshells in comparison to other waste resources, and their higher calcium content, this study focuses primarily on the extraction of calcium …
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Solvent extraction of calcium into nitrobenzene by using …
Abstract Extraction of microamounts of calcium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−) in the presence of dibenzo-30-crown-10 (DB30C10, L) has been investigated. The equilibrium data have been explained assuming that the species HL+, CaL2+, CaL22+, CaHL3+ and CaHL23+ are extracted into the organic …
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Extraction of Calcium Phosphate Nanoparticles from …
As a typical food waste, bone waste is always disposed of in landfills or incineration or used to make products with low added values. In contrast, extracting calcium phosphate micro/nanoparticles from bone wastes is a feasible method of valorization. However, the bones previously used for extracting Ca-P micro/nano …
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Extraction of Calcium Phosphate from Animal Bones
Calcium phosphate was studied. Characterisation studies of the bone showed 38% calcium, 18% phosphurus and 19% oxygen. Keywords: — Calcium Phosphate, bones, waste, extraction . I INTRODUCTION . Calcium phosphate can be obtained in the form of a loose powder by precipitation from aqueous solution. These
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Calcium extraction from steelmaking slag and production …
The initial calcium extraction efficiency, being an important parameter for continuous operation of slag extraction, is strongly influenced by slag particle size rather than heat treatment. In the carbonation process, PCC was produced using aqueous NH 4 Cl as an extraction solvent, which was accompanied by a small decrease of solution pH.
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Leaching of phosphorus from phosphate tailings and extraction …
Therefore, the extraction of rare-earth elements is not economic, in comparison, the large-scale resource utilization of phosphate tailings is a critical problem. ... If the obtained calcium phosphates are used as the raw material of calcium-magnesia phosphate fertilizer (P 2 O 5 ≥12%), about 1 ton of calcium-magnesia phosphate …
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Mussel Shells, a Valuable Calcium Resource for the …
2.1. Extraction of Calcium Levulinate from Mussel Shell Waste. For the recovery of mussel shell calcium, an original technology has been designed involving conversion of calcium carbonate, the major component of shell composition (about 94%) [19,20].The technology comprises two main steps: shell deproteination for removal of …
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Method for extracting calcium carbonate from eggshells
A method for extracting calcium carbonate from eggshells relates to the technical field of biological extraction and leaching processes. Soaking the cleaned eggshell in sodium hydroxide, cleaning the residual solution of the sodium hydroxide, and removing water; soaking in ethanol, centrifuging to remove ethanol, drying, pulverizing, and diluting with …
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Extraction of calcium containing crystals from synovial …
A protocol for extracting minerals from biological tissues and fluids has been developed. Synovial fluid (SF) and articular cartilage samples were treated with papain and sodium hypochlorite to extract and concentrate calcium containing crystals. The method was validated by testing the ability to re …
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Calcium Extraction from Paper Sludge Ash using Various
The purpose of this study is to find the optimum conditions, including the type and concentration of solvent, and the solid/liquid ratio, for the extraction of calcium from Paper Sludge Ash (PSA). Solvents with different properties are divided into the following three groups to conduct the calcium extraction experiments: acid (acetic acid and …
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Recovery and carbonation of of calcium in waste …
Differences in the particle size (Dp < 105 μm vs. 105 μm < Dp < 425 μm) and mineralogy (LCC vs. HCC) of the waste concrete fines did not appear to have a significant influence on the extraction of calcium and magnesium. The extraction of calcium linearly increase to when the HCl:(Ca + Mg) ratio was 2.0. Extraction …
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Solvent extraction of calcium and magnesium from …
Selection of a synergistic solvent extraction system to remove calcium and magnesium from concentrated nickel sulfate solutions. 2018, Hydrometallurgy. Citation Excerpt : It can be inferred that Ca could be extracted by D2EHPA at pH = 3.0–3.5, followed by Mg extraction with Cyanex 272 at pH = 5.5–6.0. This route may require a Ni …
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Extraction of vanadium from high calcium vanadium slag …
The extraction of vanadium from high calcium vanadium slag was attempted by direct roasting and soda leaching. The oxidation process of the vanadium slag at different temperatures was investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The effects of roasting …
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Microfluidic solvent extraction of calcium: Modeling and …
Multistage solvent extraction in microfluidic devices was performed. In this stage, further extraction of Calcium ions was evaluated using two microfluidic extractors in series. The aqueous phase outlet of first stage was introduced to the inlet of the second stage via connectors to contact with the fresh organic phase (cross-flow arrangement).
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Sustainable Sources and Extraction Methods of Calcium for …
Objectives: This study seeks to consolidate knowledge on calcium extraction methods from a range of natural sources. It specifically investigates various sources rich …
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Experimental study on the extraction of calcium, magnesium, …
The calcium extraction efficiencies were 96% and 38% for 0–50 μm and 74–125 μm particle fractions, respectively. The effect of sonication can be used to break …
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Methods of extraction, physicochemical …
The extraction parameters (e.g., temperature and time of extraction) have critical impact on the alginate physiochemical and mechanical properties and thus, their potential applications. ... CaCl 2 route involves its …
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Towards carbon sequestration using stainless steel slag via …
For the dual–purpose of chromium immobilization and co–extraction of calcium and magnesium, a slag modification using added MnO is performed followed by an acid leaching treatment. Results show that the MnO content has a significant influence on the phase composition and element distribution of SSS. A Box–Behnken design (BBD) …
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schnitzer-lab/EXTRACT-public
EXTRACT is a tractable and robust automated cell extraction tool for calcium imaging, which extracts the activities of cells as time series from both one-photon and two-photon Ca 2+ imaging movies. EXTRACT …
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Solvent extraction of calcium and strontium into …
Extraction of microamounts of calcium and strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B−) in the presence of N,N,N′,N′-tetraisobutyl-2,6-dipicolinamide [T(iBu)DPA, L] has been investigated. The equilibrium data have been explained assuming that the species HL+, HL2 +, CaL2 2+, SrL2 2+ and SrL3 2+ are …
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Extraction of calcium carbonate and collagen from egg shells
In this study, we used waste eggshell as raw material to extract calcium carbonate and collagen as bio and natural products, and in this study we gave an attempt to reduce waste eggshell, including environmental pollution, in order to preserve our health and achieve the zero waste rule. 1 kg of eggshell collected from 2 different restaurants ...
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Effects of pH and metal composition on selective extraction …
The optimal solvent for calcium extraction was 2 M HCl, which induced the extraction of 97% of Ca; 46% of Mg; 35% of Al; and 1% of Si from the steel slag. In …
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Extraction of calcium from red gypsum for calcium …
Calcium extraction efficiency using different concentrations of acids and bases. Alkaline solutions are found to be ineffective in extracting metal ions because …
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Extraction of calcium from red gypsum for calcium …
The present study was aimed to find a suitable solvent for efficient extraction of calcium from red gypsum. The potential of calcium and iron extraction (the main constituents of red gypsum) from red gypsum using several acids and bases was investigated. In addition, the dissolution kinetic study was performed using H 2 SO 4, …
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Optimized extraction of calcium malate from eggshell …
The effects of different factors for PEF-assisted extraction of dissoluble calcium from eggshells were studied. Based on the results of single factors effects, it could be concluded that PEF could significantly improved the calcium dissolution, and mixture of malic acid and citric acid extract-association indicated the best efficiency. ...
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Liquid-liquid extraction of calcium using ionic liquids in …
Keywords: Liquid-liquid extraction, Calcium metal ion, Ionic liquid, Microfluidic system, Spiral microchannel. 2 1- Introduction Calcium metal ions are significant elements due to their applications in different industries such as reducing agent in the process of metal extraction, allying agent in the production of some metals and etc. ...
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Simultaneous extraction of calcium phosphates and …
Using the common extraction protocols, only one of the two phases can be extracted, while the other one is degraded. In the present work a method of extraction which allows the obtainment of both proteins and calcium phosphates was developed. Bones from two different species (salmon and sea bream) were tested.
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Effects of pH and metal composition on selective extraction of calcium
Typical extraction solvents used for the extraction of calcium are acidic substances such as acetic acid and hydrochloric acid. When acetic acid was used to extract calcium, long filtration processes were required due to the higher viscosity of the slurry than HCl extractant which will demand longer processing period and higher …
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