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ammonium bicarbonate,ammonium hydrogencarbonate,ammonium hydrogen carbonate,carbonic acid, monoammonium salt,monoammonium carbonate,ammonium acid carbonate,ammonium hydrogencarbonat,ammoniumbicarbonate,acid ammonium carbonate,ccris 7327 ... It is also used in cooling baths, scale and gypsum removing agents, leavening agent for baked goods and a ...
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A continuous countercurrent flow process for converting FGD gypsum to ammonium sulfate and calcium carbonate including countercurrent flows with internal recycle of liquids to maximize the purity of reaction products while minimizing reaction times, and further include embodiments of the process that provide a yield of both ammonium sulfate and calcium carbonate to be 97 to …
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Example I In an air-tight vessel provided with means for permitting the escape of gaseous products, equimolecular proportions of ammonium bicarbonate and powdered gypsum were mixed. The temperature of the vessel was maintained constant at a temperature between 65 C. and 75 C. After the mixture became heated a small amount of gas (probably carbon dioxide) …
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gypsum ammonium calcium carbonate solution Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) ... 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 7 ...
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Amendments (gypsum, or sulfur/acid if free lime is present) ... Nitro-Sul –ammonium polysulfide (NH4=20%, S=40%), increases acidity after microbial oxidation ... situations with these high bicarbonate/carbonate waters. Does this approach work for all (most) situations? No ...
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The invention relates to the technical field of sodium carbonate preparation, and discloses a novel process for preparing sodium carbonate byproduct gypsum by using sodium sulfate and carbon dioxide as raw materials, wherein the process combines a double decomposition reaction of sodium sulfate and ammonium bicarbonate and a wet decomposition process of sodium …
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The livestock industry is a major source of bicarbonate-rich wastewater, which has been well known to produce considerable amounts of greenhouse gases from animal-based food production (up to 13.39 kg CO2 /kg product) [6].Swine wastewater, which generally contains high concentrations of ammonium ions (NH 4 +) and HCO 3 − [3], [7], has caused serious …
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The distillation waste stream from the ammonia-alkali process contains 90–120 g/L of calcium chloride. Using calcium chloride as raw material to mineralize carbon dioxide can achieve efficient utilization of calcium chloride waste and CO 2 emission reduction. This article is based on a two-step synthesis method, using ammonium carbonate and calcium chloride as …
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In this paper, we focus on the precipitation of calcium carbonate and its polymorphism. Additionally, our attempts to produce calcium carbonate of high purity from FGD …
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A continuous countercurrent flow process for converting FGD gypsum to ammonium sulfate and calcium carbonate including countercurrent flows with internal recycle of liquids to maximize the purity of reaction products while minimizing reaction times, and further include embodiments of the process that provide a yield of both ammonium sulfate and calcium carbonate to be 97 to …
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Table 1 shows the results showing the dependence of the time of introduction of ammonium carbonate solution on the gypsum carbonate processing process in the liquid conversion method and the conversion tim. 3. Results and Discussion The From the results of Table 1, it can be seen that the mass fraction of ammonium sulfate in the filtrate from ...
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Ammonium Bicarbonate | NH4HCO3 or CH2O3.H3N or CH5NO3 | CID 14013 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more. ... Used in baking powder, cooling baths, fire extinguishers, scale and gypsum removing agents ...
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Used in baking powder, cooling baths, fire extinguishers, scale and gypsum removing agents, cold wave solutions, fertilizers, and pharmaceuticals (antacids, stimulants, and expectorants); Also used in chrome leather tanning and as a …
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A process for producing sodium bicarbonate and sodium carbonate. The process includes reacting within a reactor sodium sulfate in aqueous solution with ammonia and carbon dioxide to precipitate sodium bicarbonate and form a first mother liquor. The sodium bicarbonate is separated and dried to produce sodium bicarbonate product. Alternatively, the sodium …
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Gypsum can be carbonated by either ammonium carbonate or using NH 3 solution together with a gaseous CO 2 mixture. The latter approach offers an environmental approach …
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The initial grinding of gypsum helps determine the calcium carbonate particle size which can be matched to industry specifications, as discussed above. As discussed above, the first reaction mother liquor contains some unreacted ammonium bicarbonate/carbonate and is saturated with potassium sulfate and undersaturated with ammonium sulfate while ...
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In this study, we propose a process making calcium carbonate and calcium sulfate and recovering absorbent using ammonia absorbent, carbon dioxide, and industrial waste. The main objective …
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A still further object of one embodiment of the present invention is to provide a method of recovering sodium bicarbonate and forming gypsum from a source containing sodium sulfate, comprising the steps of: ... production of sodium bicarbonate, sodium carbonate and ammonium sulphate from sodium sulphate CA002205199A CA2205199C (en) : ...
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1. Introduction. Flue gas desulfurization (FGD) gypsum is the main product of the desulfurization system used to remove SO x from coal combustion products. One established utilization of waste gypsum has been the production of the fertilizer ammonium sulfate [1], [2], [3].At the same time, calcium carbonate is produced as a byproduct which might a have …
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The aqueous ammonia concentrations used in this study were 4, 8, and 12% (1.3, 2.7, and 4.0 mol NH 3) at a gypsum loading of 150 g/L and CO 2 flow rate of 1 L/min. The three ammonia contents correspond to the excess-ammonia conditions since an aqueous ammonia content above 3.6% (v/v) was required for a complete carbonation.
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Name / ชื่อ. Product Name : Ammonium Bicarbonate Other Name : Ammonium hydrogen carbonate; Acid ammonium carbonate; Monoammonium salt; AmBic; Powdered baking ammonia Formula : NH₄HCO₃; CH₅NO₃ ชื่อสินค้า : แอมโมเนียม ไบคาร์บอเนต ชื่ออื่นๆ : แอมโมเนียม ไฮโดรเจน ...
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Title: Ammonium Bicarbonate. ... Acid ammonium carbonate; ammonium hydrogen carbonate. Molecular Formula: CH 5 NO 3. Molecular Weight: 79.06. Percent Composition: C 15.19%, H 6.37%, N 17.72%, O 60.71%. Line Formula: NH 4 HCO 3. ... in chrome leather tanning; to remove gypsum from heat exchanges and other processing equipment. ...
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There is disclosed a process for recovering sodium bicarbonate and forming ammonium sulfate from a source containing sodium sulfate. The method involves contacting the sodium sulfate in solution with carbon dioxide and a compound containing ammonia. Sodium bicarbonate is precipitated in high purity form from the solution. It is important to maintain the temperature of …
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AMMONIUM BICARBONATE Ammonium bicarbonate, Ammonium hydrogen carbonate, Mon ammonium carbonate : NH 4 HCO 3 PRODUCT INTRODUCTION Ammonium bicarbonate is an inorganic salt with formula (NH 4)HCO 3. It appears as a white crystalline solid and it readily degrades into carbon dioxide, water and ammonia. It is freely soluble in water.
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ammonium sulfate can be obtained by converting ammonium carbonate with readily soluble sulfates such as alum, as well as with sulfates which only dissolve with difliculty such as gypsum that is to say hydrated calcium sulfate (Graham Otto, 5th ed., 3 div., pag. 482). Both reactions have been proposed for obtaining ammonium sulfate from gas liquor, the stoichiometrical …
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The reactivity of flue gas desulphurization gypsum with ammonium carbonate has been studied in the temperature range (20–50) °C. Mechanism of this reaction was suggested and the kinetics parameters characterizing the …
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In this study, we investigated the production of precipitated calcium carbonate (PCC) particles from desulfurization gypsum (DG) waste using a new experimental apparatus that is …
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Initial laboratory experiments used (NH4)2CO3 for liquid carbonate conversion of ordinary gypsum and phosphogypsum. In aqueous ammonium carbonate solution, the concentration …
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due to the precipitation of calcium carbonate (CaCO. 3) from gypsum-derived calcium and litter bicarbonate. Furthermore, as urea was hydrolyzed, more urea-derived carbon precipitated as CaCO. 3. in gypsum-treated litter than in untreated litter (p < 0.001). These results indicate that amending broiler litter with gypsum favors the precipitation ...
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In order to study the resource utilization of sintering flue gas desulfurization gypsum,the reaction of ammonium carbonate and the sintering flue gas desulfurization gypsum was involved to prepare calcium carbonate and ammonia sulfate.The process of the reaction was investigated,and the reaction mechanism and the reaction kinetic equation were explored in …
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If ammonia mole fraction is less than 0.04, bicarbonate mole fraction in products will be close to 1.When ammonia mole fraction is 0.1-0.15 or ratio of reaction ammonia to carbon oxide 2.2-2.8 ...
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Phosphogypsum Two-Step Ammonia-Carbonation Resulting in Ammonium Sulfate and Calcium Carbonate Synthesis: Effect of the Molar Ratio OH−/Ca2+ on the Conversion Process March 2022 Waste and ...
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Amending broiler litter with gypsum also caused an immediate decrease in litter pH (0.22 pH units) due to the precipitation of calcium carbonate (CaCO) from gypsum-derived calcium and litter bicarbonate. Furthermore, as urea was hydrolyzed, more urea-derived carbon precipitated as CaCO in gypsum-treated litter than in untreated litter ( < 0.001).
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Ammonium bicarbonate is an inorganic salt with formula (NH4)HCO3. It appears as a white crystalline solid and it readily degrades into carbon dioxide, water and ammonia. It is freely …
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What to do with my Ammonium Bicarbonate? I bought ammonium carbonate (baking quality) as a source of ammonium ions, Ammonia is easily released by the action of a basic solution, or heat, or in my case, higher ambient temperatures ... if you mix it with powdered gypsum at room temperature you can also make (NH4)2SO4 and CaCO3. "A mind is a ...
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To avoid the long-term pollution of land and water by industrial gypsum by-products, the exploitation of this resource has become a priority. The indirect synthesis of calcium carbonate from the industrial by-product gypsum has received substantial attention as a viable method for resource utilization. Currently, the primary problems in the indirect manufacture of …
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