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Potassium sulfate is a chemical compound with the molecular formula K2SO4. It is soluble in water and has a molecular weight of 174.259 g/mol. ... Less direct methods of production include transformation reaction of other minerals such as phosphogypsum and K2CO3 (Ennaciri et al., 2013), gypsum and KCl (Lozano and Wint, 1982; Fernández-Lozano ...
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Phosphogypsum (PG) is a by-product of the industrial wet process used to produce phosphoric acid. For each molecule of calcium fluorophosphate, 3 mol of phosphoric acid and 5 mol of PG are produced [1], [2].The main component of PG is calcium sulfate dihydrate (CaSO 4 ·2H 2 O), which contains a small amount of phosphorus, fluorine, and silicon [3], [4].
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[27] tested the phosphogypsum (an industrial by-product) as the calcium source for the SSC. The phosphogypsum (dehydrated calcium sulfate) is a secondary material formed during the phosphoric acid production. According to the authors, for each ton of phosphoric acid, three tons of phosphogypsum is produced.
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It is most likely possible to conclude ин the reverse reaction of potassium sulfate with conversion products such as calcium chloride with the formation of syngenite. ... аммиачный раствор, солевой состав. Keywords: phosphogypsum, potassium chloride, potassium sulfate, conversion, ammonia solution, salt ...
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The chemical industry of Uzbekistan has all the prerequisites for creating the production of complex (nitrogen-phosphorus, nitrogen-phosphorus-potassium, nitrogen-phosphorus-sulfur-containing and others) fertilizers based on ammonium nitrate (AN). Phosphogypsum (PG), a waste product from the
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The factors affecting the conversion of potassium chloride to potassium sulfate, such as aqueous ammonia to phosphogypsum ratio, weight percent of isopropanol in the solution, weight percent ...
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The production of potassium sulfate from phosphogypsum and potassium chloride in the presence of ammonia and isopropanol has been investigated. ... Therefore, the global reaction leading to the formation of potassium sulfate from phosphogypsum can be represented through the following equation: CaSO4.2H2O + 2NaOH + 2KCl K2SO4 + 2NaCl + Ca(OH)2 ...
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Production of potassium sulfate from KCl and phosphogypsum (no ammonia, no alcohol for Runs No. 1 and 2), and (33% ammonia, no alcohol, and 4.32:1 ammonia solution to …
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Phosphogypsum (PG) is a by-product of the production of wet-process phosphoric acid, and after the preliminary fieldwork, there is a very small amount of arsenic [As(V)] in …
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the production of potassium sulfate from phosphogypsum and other matter such as sylvinite, KCl and potassium ... was achieved by using calcium sulfate isolated from sea salt production . J. Mater ...
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Phosphogypsum (PG), commonly known as calcium sulfate, is a waste by-product generated during the production of phosphoric acid by the wet phosphoric acid process (WPA).
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The effect of temperature on phosphogypsum conversion was evidenced reacting a high concentration of phosphogypsum waste (1.3 M) with potassium hydroxide to produce …
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the production of potassium-rich biochar fertiliser. The stalk that holds the inflorescence and banana bunches is commonly known as the banana peduncle (Figure 1a). ... Leaching of Sulphate From Biochar and Phosphogypsum-Biochar for the Treatment of Acidic Red Soil25 Figure 1: (a) Photoplate of raw banana peduncle, (b) dry banana peduncle and ...
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tallization processes, such as the production of potas-sium sulfate from phosphogypsum and potassium chloride. This paper examines the solubility of CaSO 4·2H 2O in aqueous …
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The factors affecting the conversion of potassium chloride to potassium sulfate, such as aqueous ammonia to phosphogypsum ratio, weight percent of isopropanol in the solution, weight percent excess phosphogypsum, and …
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Abstract The possibility of obtaining potassium sulfate by converting calcium sulfate (phosphogypsum) and potassium chloride in an ammonia solution was investigated. …
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The production of potassium sulfate from phosphogypsum and potassium chloride in the presence of ammonia and isopropanol has ... The Phosphogypsum process Potassium sulfate can be produced by the ...
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DOI: 10.1016/S1385-8947(99)00158-8 Corpus ID: 95459156; K2SO4 production via the double decomposition reaction of KCl and phosphogypsum @article{Abueishah2000K2SO4PV, title={K2SO4 production via the double decomposition reaction of KCl and phosphogypsum}, author={S. I. Abu-eishah and Ali A Bani-Kananeh and Mamdouh A. Allawzi}, …
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To improve the process of potassium sulphate prepared from phosphogypsum (under study, no product, only method) in ammonia solution, the influence of solvent such as Methanol, Methanol-ammonia on ...
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Radionuclide flow during the conversion of phosphogypsum to ammonium sulfate. J. Environ. Radioact. (1996) ... Utilization of phosphogypsum in CO 2 mineral sequestration by producing potassium sulphate and calcium carbonate. Mater. Sci. Energy Technol. ... is an acidic by-product that is created during the production of phosphoric acid …
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The potassium sulfate solubility in water as a function of temperature are representing in Fig. 2 [17].It is noted that the solubility (S) of potassium sulfate in water increases gradually when the temperature increases.According to the solubility data of …
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Dolomite Mineral, Phosphogypsum, Ammonium Nitrate and Sulfate Nargisa Toxirova, Abduraxim Nabiyev, Fazliddin Xudoyberdiyev ... In Russia, the production of nitrogen-potassium fertilizer based on ammonium nitrate and potassium chloride was first mastered at OAO Nevinnomyssky Vneshtreidinvest in 1999. The method of production and
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This paper proposes a very attractive process for K2SO4 production via the wet conversion of phosphogypsum (PG) and K2CO3. A parallel study of the conversion of two synthetic types of gypsum by ...
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Download Citation | On Mar 1, 2020, I. I. Goncharik and others published Production of Potassium Sulphate by Conversion of Phosphogipsum and Potassium Chloride in Ammonia Solution | Find, read and ...
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The production of ammonium sulfate fert ilizer from phosphogypsum is studied. The phosphogypsum is considered by prod uct from extraction process of sulphoric acid. The mereseberg process is used a waste of phosphogypsum with ammonium carbonate to produce ammonium sulfate as a main product and calcium carbonate as a byproduct. It is a process c …
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Solubility of calcium sulfate in concentrated aqueous chloride solutions is of particular significance in chloride hydrometallurgy and various crystallization processes, such as the production of potassium sulfate from phosphogypsum and potassium chloride. This paper examines an example of the second type of application in which gypsum and …
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Recycling of waste materials resulting from industrial activity, such as phosphogypsum (PG) released during production of phosphoric acid, proved to be economically feasible. Technologies for the management of (PG) Ca-rich waste into useful ... ammonium sulphate, potassium sulphate or calcium sulphate. (PG) can generate ammonium sulphate
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Nearly 300 million t of phosphogypsum (PG) are produced every year as a byproduct from phosphate fertilizer production worldwide. Approximately 58% of the PG are stacked, 28% are discharged in ...
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In this present work, the transformation of the Moroccan phosphogypsum (PG) waste, considered a potential source of sulfate, into potassium sulfate compound could help …
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Phosphorus is a non-renewable vital element and an economic mineral resource that is extensively utilized in various fields such as agriculture, chemical industry, pharmaceuticals, light industry, and national defence. 1–4 As of 2008, China has been the world's largest producer of phosphate rock, accounting for more than 50% of the world's total. 5 A …
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