Manufacture of ammonium sulfate fertilizer from FGD-gypsum FGD-gypsum from Abbott power plant was used. The scrubber a Chiyoda Thoroughbred 121 FGD produced a filter cake (98.36 gypsum and 0.01 CaSO sub 3 ) nversion of FGD- gypsum to ammonium sulfate was tested at 60-70 degree C for 5-6 hr. Yield up to 82 and purity up to 95 were achieved for ...
Granular ammonium sulphate and process for the production thereof. and cooling the granules after drying and screening but prior to storage Ammonium sulphate granules of exceptional size and hardness
14-09-2020· Ammonium Sulfate Production From Gypsum Xp design a chemical plant for producing ammonium sulphate manufacture of ammonium sulfate fertilizer from gypsum-rich by flue gas desulfurization (FGD)-gypsum to ammonium sulfate fertilizerhas . for 300 days per year of operation, the plant produces 200,000 tons gypsum per year..
US20140044619A1 Process for converting fgd gypsum to ammonium sulfate. ... Capture and storage of CO2 into waste phosphogypsum the. WebMar 23, 2016 Stoichiometrically, for every 1.0 tonne of ammonium sulphate produced, 0.9 tonnes of PCC is also produced and 1.6 tonnes of gypsum and 0.4 tonnes CO 2 are consumed. ...
Patent US8758719B2 - Process for converting FGD gypsum to ammonium sulfate and calcium carbonate (US 8,758,719 B2); Owner: Sparstane Technologies LLC; Filed: 08/09/2013; Est. …
FGD-gypsum from Abbott power plant was used. The scrubber, a Chiyoda Thoroughbred 121 FGD, produced a filter cake (98.36% gypsum and . 0.01% CaSO{sub 3}). Conversion of FGD- gypsum to ammonium sulfate was tested at 60-70{degree}C for 5-6 hr. Yield up to 82% and purity up to 95% were achieved for the ammonium sulfate production.
The method is based on the conversion reaction of aqueous suspension of gypsum with ammonium carbonate solution Rate of the, ...
The scrubber, a Chiyoda Thoroughbred 121 FGD, produced a filter cake product contains 98.36% gypsum (CaSO{sub 4}.2H{sub 2}O), and less than 0.01% calcium sulfate …
ammonium sulfate fgd gypsum converting converting fgd Prior art date Application number ZA2015/01579A Other languages English (en) Inventor G Holt Timothy D Cochran Keith R Shirley Arthur A Saiia Joseph Pursell Taylor P Hasinoff Murray Original Assignee Sparstane Tech Llc Priority date (The priority date is an assumption and is not a ...
Production of ammonium sulfate fertilizer from FGD-gypsum … Millions of tone of FGD-gypsum by-product may be produced in this decade as a result of the 1990 Clean Air Act Amendments. In this research, bench-scale experiments were conducted to obtain process data for the production of ammonium sulfate from FGD-gypsum and to help evaluate ...
[origin: US2014044619A1] A continuous countercurrent flow process for converting FGD gypsum to ammonium sulfate and calcium carbonate including countercurrent flows with …
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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 …
The scrubber, a Chiyoda Thoroughbred 121 FGD, produced a filter cake product contains 98.36% gypsum (CaSO{sub 4}.2H{sub 2}O), and less than 0.01% calcium sulfate (CaSO{sub 3}). Conversion of FGD-gypsum to ammonium sulfate were tested at temperatures between 60 to 70{degrees}C for a duration of five to six hours.
i i manufacture of ammonium sulfate fertilizer from gypsum-rich byf'roduct of flue gas desulfurization – a prefeasibility cost estimate m.4. m. » Free Online Chat. MANUFACTURE OF AMMONIUM SULFATE FERTILIZER FROM FGD-GYPSUM. commercial uses were developed for the gypsum-rich by … MANUFACTURE OF AMMONIUM SULFATE FERTILIZER FROM …
In this study, the technical feasibility of producing ammonium sulfate from FGD residues by allowing it to react with ammonium carbonate in an aqueous solution was preliminarily assessed. Reaction temperatures of 60, 70, and 80°C and residence times of 4 and 6 hours were tested to determine the optimal conversion condition and final product ...
The slurry of FGD gypsum/ammonium sulfate/ammonium carbonate was metered to the converter. During the pilot plant tests the ammonium carbonate feed rate frequently exceeded 105% of the stoichiometric requirements. ... Once the gypsum was made into an ammonium sulfate-water slurry, the beaker was placed on a hotplate/stirrer and agitated with a ...
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 …
Definitions. This invention relates to the production of ammonium sulfate and calcium carbonate from gypsum obtained from flue gas desulfurization (FGD) systems located at electri
Abstract. 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 …
An engineering team at IP will provide an independent review of the economics of the process. AlliedSignal will be involved in testing and quality evaluation of ammonium sulfate samples and is interested in an agreement to market the finished product. CIPS will provide technical assistance and samples of FGD -gypsum for the project.
Conversion of FGD- gypsum to ammonium sulfate was tested at 60-70{degree}C for 5-6 hr. Yield up to 82% and purity up to 95% were achieved for the ammonium sulfate production. During this quarter, more bench-scale …
Systems and methods to treat flue gas desulfurization waste to produce ammonium sulfate and calcium carbonate products EP3898518A4 (en) * : : Elixsys Inc. Systems and methods to treat flue gas desulfurization and metal-bearing waste streams to recover value-added materials US11479472B2 (en)
Manufacture of ammonium sulfate fertilizer from …. Manufacture of ammonium sulfate fertilizer from FGD-gypsum.Quarterly report, 1 December 1994–28 February 1995 » Free Online Chat MANUFACTURE OF AMMONIUM SULFATE FERTILIZER FROM FGD-GYPSUM.. MANUFACTURE OF AMMONIUM SULFATE FERTILIZER FROM FGD- GYPSUM M.4.M. …
partially continuous countercurrent process for converting gypsum to ammonium sulfate and calcium carbonate title (de) teilweise kontinuierlichen gegenstromverfahren zur umwandlung …
ammonium sulfate fgd gypsum converting converting fgd Prior art date Application number ZA2015/01579A Inventor G Holt Timothy D Cochran Keith R Shirley Arthur A Saiia Joseph Pursell Taylor P Hasinoff Murray Original Assignee Sparstane Tech Llc Priority date (The priority date is an assumption and is not a legal conclusion.
High yields (up to 83%) of ammonium sulfate with up to 99% purity were achieved under relatively mild conditions. The optimal conversion condition was observed at …
A literature review and bench-scale experiments were conducted to obtain process engineering data. Conversion of FGD-gypsum to ammonium sulfate was tested at temperatures …
itions were reviewed and the information was used to set up a reactor system. FGD-gypsum p. oduced at the Abbott power plant in Champaign, IL was used as a raw material. Conversion of FGD-gypsum to ammonium sulfate were t. sted at temperatures between 60 to 70°C for a …
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 …
Abstract: A continuous countercurrent flow process for converting FGD gypsum to ammonium sulfate and calcium carbonate including countercurrent flows with internal recycle of liquids to …
The present invention includes a partially continuous countercurrent process for converting gypsum, by reaction with ammonium carbonate, to products of ammonium sulfate and …
US8758719B2 US13/963,072 US201313963072A US8758719B2 US 8758719 B2 US8758719 B2 US 8758719B2 US 201313963072 A US201313963072 A US 201313963072A US 8758719 B2 US8758719 B2 US 8758
Abstract: 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 …