phosphogypsum production of ammonium sulfate

Integrated process for potassium sulfate and a mixture

·In this production process potassium sulfate is produced by react ing ammonium sulfate and potassium chloride at a temperature of about 30 to 40 °C to produce a slurry containing

Obtaining nano calcium fluoride and ammonium

·The Egyptian phosphogypsum waste is treated using sulfuric acid prior the ammonium sulfate production The relevant factors that would affect the removal efficiencies of some impurities are

Ammonium sulfate and the methods of production Shimico

·Ammonium Sulfate Production Methods The chemical compound is prepared by treating ammonia often as a by product of coke ovens in the presence of sulfuric acid; you can see this equation in the following section 2NH 3 H2SO 4 NH4 2SO4

Production of potassium sulphate by conversion of phosphogypsum

·This work shows the possibility of obtaining potassium sulfate by converting phosphogypsum and potassium carbotane by the reaction CaSO 4 K 2 CO 3 → ↓ CaCO 3 K 2 SO 4

The Role of the Merseburg Process in Industrial

·The phosphate industry is commonly associated with a large amount of waste phosphogypsum in its solid form The vast majority of phosphogypsum is usually discharged into the environment without any treatment and reuse In this work we investigate the valorization of the Moroccan phosphogypsum for manufacturing valuable products such as Ca OH 2 CaCO3

Mineral Carbonation of Phosphogypsum Waste

·Phosphogypsum PG waste is a by product generated from wet process phosphoric acid H3PO4 manufacturing during phosphate rock decomposition Worldwide the annual production of PG ranges between 100 and 300 million tons with only a few quantities utilized in several application domains about 15% the unused PG is usually discharged into

Phosphogypsum Properties and Potential Use in

·Abstract Phosphogypsum PG is a calcium sulphate dihydrate and a by product ammonium sulphate potassium sulphate urea Discharging PG from production sites is one of the most critical operations in the phosphate industry

A novel and sustainable approach for biotransformation of phosphogypsum

Urease producing L sphaericus strain GUMP2 could be used to remove the hazardous phosphogypsum from the environment by converting it to the industrially useful CaCO 3 and ammonium sulfate a valuable agricultural fertilizer This novel and sustainable approach could be a promising solution for the hazardous phosphogypsum in the phosphoric acid

Revisiting the Merseburg Process Economic Opportunity and

Ammonium sulfate is mainly used as direct fertilizer or in producing compound fertilizers The global ammonium sulfate market is projected to grow 4% annually through 2025 from $ billion to $ billion As global efforts to utilize more of the phosphogypsum produced in the production of phosphate fertilizers grow the prospect of re

PDF Conversion of phosphogypsum to potassium sulfate

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 reaction temperature and pressure have also been optimum reaction conditions obtained at 25°C and atmospheric

CONVERSION OF PHOSPHOGYPSUM TO POTASSIUM

·of calcium sulfate to ammonium sulfate using ammo nium carbonate aqueous solution [8] CaSO 4·2H 2O NH 4 2CO 3→ →CaCO 3 NH 4 2SO 4 2H 2O Bani Kananeh et al present results concerning the production of potassium sulfate by the double de composition reaction of potassium chloride and phosphogypsum in aqueous ammonia solution at low

Ammonium Sulfate Properties Production And Uses

·The compound remains insoluble in typical organic solvents Dissolution of ammonium sulfate in ethanol propanol butanol acetone pyridine and similar solvents results in the formation of two distinct phases an aqueous phase and an organic solvent Ammonium sulfate solutions and its solutions in sulfuric acid do not corrode special Cr Ni

Synthesis of nano crystalline hydroxyapatite and ammonium sulfate

·Phosphogypsum PG is an industrial waste from the production of phosphoric acid and phosphate fertilizer Disposal and landfill of PG pose significant environmental problems due to its hazardous

Properties Purification and Applications of Phosphogypsum

·Phosphogypsum PG is a by product produced during the wet process of phosphoric acid H3PO4 production from natural phosphate rocks Approximately 4 6 tons of PG is produced per ton of phosphoric acid production where worldwide PG generation exceeds 300 million tons annually The vast majority of produced PG is discarded irresponsibly leading to

Obtaining nano calcium fluoride and ammonium sulfate from phosphogypsum

·Abstract This study presents an efficient and sustainable procedure for converting phosphogypsum PG waste along with hydrofluoric acid HF and ammonia NH3 into valuable materials The results obtained demonstrate the high efficiency of this proposed procedure resulting in the synthesis of relatively pure calcium fluoride CaF2 nanoparticles

Integrated process for potassium sulfate and a mixture

·In this production process potassium sulfate is produced by react ing ammonium sulfate and potassium chloride at a temperature of about 30 to 40 °C to produce a slurry containing

Experimental study of enhanced phosphogypsum carbonation with ammonia

·Carbonation of phosphogypsum for CO 2 mineral sequestration is a win win strategy which is a promising option for alleviating the pollution problem of a large amount of phosphogypsum stacking and the greenhouse effect caused by CO 2 emissions [4] Phosphogypsum usually takes the form of calcium sulfate dihydrate CaSO 4 ·2H 2 O with a

Method for preparing granular ammonium sulfate and

·The present invention is a low temperature conversion made granular chemical gypsum and calcium sulfate process involving the use of resources and environmental protection field of management of industrial by product gypsum Its characteristics are chemical gypsum phosphogypsum eg flue gas desulfurization FGD gypsum fluorine gypsum citric acid

Experimental study of enhanced phosphogypsum carbonation with ammonia

·Carbonation of phosphogypsum for CO 2 mineral sequestration is a win win strategy which is a promising option for alleviating the pollution problem of a large amount of phosphogypsum stacking and the greenhouse effect caused by CO 2 emissions [4] Phosphogypsum usually takes the form of calcium sulfate dihydrate CaSO 4 ·2H 2 O with a

Physical Simulation of Bubble Behaviors and Optimization of

·Huang YH 2020 Study on the production of ammonium sulfate from phosphogypsum J Chengdu Teach Coll 4 04 66 74 Google Scholar Jiang YQ Wang Y 2020 The strategic planning implementation and guarantee of phosphogypsum consumption in Guizhou Province Heilongjiang Sci 11 08 128 131 135 Google Scholar

PDF Conversion of phosphogypsum to potassium sulfate

·The production of potassium sulfate from phosphogypsum and potassium chloride in the presence of ammonia and isopropanol has been investigated such as aqueous ammonia to phosphogypsum ratio

Recovery of nano calcium fluoride and

·Synthesis of ammonium sulfate The synthesis of ammonium sulfate is made by paddling of carbon dioxide in a solution containing ammonia water to obtain NH 4 2 CO 3 which reacts with

Mineral Carbonation of Phosphogypsum Waste for

·Production of Useful Carbonate and Sulfate Salts Front Energy Res 3 48 doi / Mineral carbonation of Phosphogypsum Waste for Production of Useful carbonate and sulfate salts Hannu Petteri Mattila and Ron Zevenhoven Thermal and Flow Engineering Laboratory Åbo Akademi University Turku Finland Phosphogypsum CaSO 4·2H

Synthesis of nano crystalline hydroxyapatite and ammonium sulfate

·Phosphogypsum PG waste was converted into nano HAP and ammonium sulfate by reacting PG with phosphoric acid in alkaline medium by adding ammonia solution at room temperature for only 1 results indicated poor crystalline nature for dried HAP and calcined sample at 600 ° the calcination temperature increased to 900 °C HAP partially

PDF Complex processing of phosphogypsum ResearchGate

·The first stage is the production of ammonium sulfate or sodium sulfate Investigation of theconversion process of phosphogypsum into ammonium sulfate NIITEKHIM ref Jan 1983; 8;