preparation of ammonium sulphate from ammonium carbonate and gypsum

  • Ammonium sulfate preparation from phosphogypsum waste ...

    Ammonium sulfate preparation from phosphogypsum waste. ... the optimum conditions of the ammonium sulfate preparation are 10 g of the suspended impure or purified phosphogypsum in 40 ml of 3% ammonium sulfate solution (as initiator), 1/4 solid/liquid ratio at pH7 at an addition of an excess ammonium carbonate, and 150 rpm stirring speed for 4.0 ...

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  • © Manufacture of Ammonium Sulfate from Gypsum, NH3 & CO2

    Amonium sulfat dihasilkan oleh reaksi dekomposisi ganda gypsum dan ammonium carbonat dalam bentuk larutannya. ... patent untuk pembuatan amonium sulfat diantaranya adalah United States Patent No 2788269, 9 April 1957 dengan label: Preparation of ammonium sulfate. ... PROCESS FOR CONVERTING FGD GYPSUM TO AMMONIUM SULFATE AND CALCIUM CARBONATE ...

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  • Method for ammonium sulphate preparation

    A known method of producing ammonium sulfate by treating the slurry of finely ground gypsum in water solution of ammonium carbonate with a concentration of 25-33% with subsequent separation of ammonium sulfate solution and precipitation of calcium carbonate [1].

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  • Study on The Production of Ammonium Sulfate Fertlizer …

    decomposition of ammonium carbonate and low temperature causes precipitate different kind of salts. From results of laboratory experiments the temperature of ammonium sulfate preparation is done in 23C o and the ratio of phosphogypsum to ammonium carbonate (400ml /192 gm phosphogypsum ) at reaction time( 4 ) hours.

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  • Manufacture of ammonium sulfate fertilizer from gypsum ...

    Costs for constructing and operating a conceptual plant based on a proposed process that converts flue gas desulfurization (FGD)-gypsum to ammonium sulfate fertilizer has been calculated and used to estimate a market price for the product. The average market price of granular ammonium sulfate ($138 ...

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  • Ammonium Sulfate - Swenson Technology

    Production. Ammonium sulfate is made by treating ammonia, often as a by-product from coke ovens, with sulfuric acid: 2 NH 3 + H 2 SO 4 → (NH 4) 2 SO 4. Ammonium sulfate also is manufactured from gypsum (CaSO 4 ·2H 2 O). Finely divided gypsum is added to an ammonium carbonate solution.

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  • how to make ammonium sulfate from gypsum

    convert fgd gypsum into ammonium sulphate. Ammonium Sulfate Fertilizer From Fgd Gypsum convert fgd gypsum into ammonium sulphate The conversion of FGD-gypsum to calcium carbonate and ammonium sulfate insight into the chemistry, process schemes, and costs of producing ammoniu. Get Price Online Chat; US8758719B2 - Process for converting FGD ...

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  • Ammonium sulphate - SlideShare

    Aug 26, 2017· Now proper proportion of finely ground gypsum or anhydrite is fed into the aqueous solution of ammonium carbonate in large reactor, whereby calcium carbonate is precipitated gradually as a result of double decomposition. Reactions of ammonium carbonate and gypsum solutions are carried out in a series of wooden vessels or mild steel vessels ...

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  • TECHNICAL REPORT q MANUFACTURE OF AMMONIUM …

    The conversion of FGD-gypsum to calcium carbonate and ammonium sulfate by reacting it with COz and ammonia or by reacting it with ammonium carbonate is being studied in this program. A variation of this process could provide electric utilities a means to convert the C02 and SO2 in their flue gas to useful commercial products.

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  • how to make ammonium sulfate from gypsum

    Finely divided gypsum is added to an ammonium carbonate, a ban on ammonium sulfate, ammonium nitrate and calcium ammonium nitrate fertilizers was imposed in, ... How do ammonium sulfate and gypsum, With 24 units of sulfate sulfur and 21 units of ammonium nitrogen, Sulf-N ammonium sulfate is a high-analysis fertilizer . [24/7 online]

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  • Preparing calcium sulfate? | Yahoo Answers

    Jul 20, 2013· OK there may be many ways to prepare calcium sulfate. 1. Add dilute nitric acid to calcium carbonate first. Then react the calcium nitrate produced by the first reaction with dilute sulfuric acid 2. H2SO4 + CaCO3 3. Heat calcium carbonate strongly to give calcium oxide. React the calcium oxide with water to form calcium hydroxide and then add dilute sulfuric acid.

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  • Manufacture of ammonium sulfate fertilizer from FGD-gypsum ...

    The goal of this study is to assess the technical and economic feasibility of producing marketable products, namely fertilizer-grade ammonium sulfate and calcium carbonate, from gypsum produced as part of lime/limestone flue gas desulfurization (FGD) processes. Millions of tons of FGD-gypsum by ...

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  • production of ammonium sulfate from gypsum

    Ammonium Sulfate an overview ScienceDirect Topics. Nov 01, 2015 · Ammonium sulfate also is manufactured from gypsum (CaSO 4 ܨH 2 O). In this process, finely divided gypsum is added to a solution of ammonium carbonate causing calcium carbonate precipitates as a solid, leaving ammonium sulfate in the solution: The production of ammonium sulfate, as a byproduct of steel …

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  • Ammonium sulfate - Wikipedia

    Finely divided gypsum is added to an ammonium carbonate solution. Calcium carbonate precipitates as a solid, leaving ammonium sulfate in the solution. (NH 4) 2 CO 3 + CaSO 4 → (NH 4) 2 SO 4 + CaCO 3. Ammonium sulfate occurs naturally as the rare mineral mascagnite in volcanic fumaroles and due to coal fires on some dumps. Properties

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  • Preparation of ammonium sulfate - STEM

    Preparation of ammonium sulfate Student worksheet Making ammonium sulfate Ammonium sulfate is a complex fertiliser. This simple salt is a source of two nutrients – nitrogen and sulfur. About 90 percent of ammonium sulfate is produced by 3 different processes: …

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  • (PDF) Ammonium sulfate preparation from phosphogypsum waste

    Moreover, the optimum conditions of the ammonium sulfate preparation are 10 g of the suspended impure or purified phosphogypsum in 40 ml of 3% ammonium sulfate solution (as initiator), 1/4 solid ...

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  • EP2882879A4 - Process for converting fgd gypsum to ...

    calcium carbonate ammonium sulfate fgd gypsum converting fgd Prior art date 2012-08-10 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 …

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  • Preparation of Ammonium Sulphate : Popular Nitrogent ...

    Calcium carbonate being insoluble, settles down and can be removed easily Calcium sulphate is used in the form of gypsum. Whereas ammonium carbonate is obtained by passing CO2 gas through NH40H solution. CO2 + 2NH40H → (NH4)2CO3 + H20

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  • Reaction process and mechanism of reaction between FGD ...

    Reaction process and mechanism of reaction between FGD gypsum and ammonium carbonate Article in Chinese Journal of Environmental Engineering 9(7):3441-3447 · July 2015 with 195 Reads

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  • Ammonium Sulfate (NH4)2SO4, China Ammonium Sulfate ...

    Finely divided gypsum isadded to an ammonium carbonate solution. Calcium carbonate precipitates as a solid, leaving ammonium sulfate in thesolution. (NH4)2CO3 + CaSO4 → (NH4)2SO4 + CaCO3 Ammonium sulfate occurs naturally as the rare mineral mascagnite in volcanic fumaroles and due to coal fires on some dumps.

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  • US2640757A - Production of ammonium sulfate and calcium ...

    1. a process for the manufacture of ammonium sulfate and calcium carbonate which comprises reacting an aqueous slurry of calcium sulfate and an aqueous solution of ammonium carbonate in a plurality of reaction zones in the presence of a minor quantity of ammonium bicarbonate, said reaction zones being of progressively larger size and of decreasing agitation, passing the reactants and ...

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  • Ammonium sulfate preparation from phosphogypsum waste ...

    Moreover, the optimum conditions of the ammonium sulfate preparation are 10 g of the suspended impure or purified phosphogypsum in 40 ml of 3% ammonium sulfate solution (as initiator), 1/4 solid/liquid ratio at pH7 at an addition of an excess ammonium carbonate, and 150 rpm stirring speed for 4.0 h contact time at 55 °C as well as the 5 mg of ...

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  • US8758719B2 - Process for converting FGD gypsum to ...

    The ammonium carbonate solution was metered to the ammonium carbonate/gypsum/ammonium sulfate pump tank at a pre-determined rate of 26.9 lbs/hr using a Master flex variable speed peristaltic pump® and tubing. Just before 10 AM on Mar. 6, 2012, the gypsum/ammonium sulfate/ammonium carbonate slurry was pumped to the converter from the pump tank.

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  • CN1736868A - Method for preparing ammonium carbonate …

    The invention discloses a method to produce ammonium carbonate by carbon dioxide, which comprises, sending the carbon dioxide and ammonia gas with purity of 99-99.99% into two baffer gas vats with pressure of 0.2-2MPa; opening the valve of the vats to release gas by rotameter into sealed PVC synthesis reaction bag and generate the product; wherein, the flow speed is (0.6-2)X106L/h and …

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