2 cl, 3 ex The invention relates to the production of ammonium phosphates (such as monoammonium phosphate (map), widely used in agriculture as fertilizers. The acid temperature was about 235° F. Anhydrous ammonia at a temperature of about 435° F. was introduced at the bottom of the spray reactor at a flow rate of about 1-2 gpm. A stable ammonium polyphosphate fertilizer was made in the spray reactor described previously by introducing wet process merchant grade phosphoric acid, having a P2 O5 content of 56.63% to the spray vessel. In the proposed method, the first stage of neutralization in the high pressure region serves part of phosphoric acid. A known method of producing ammonium phosphates, including the neutralization of phosphoric acid with gaseous and/or liquid ammonia in a tubular reactor, at a pressure of 3-6 MPa, stirring the mixture in the transport pipeline and feeding the resulting slurry granulation and drying of the product (AS the USSR №1495330, 05, 7/00, 1989). The use of synthetic fertilizers has significantly improved the quality and quantity of the food … at a pressure of about 60 psi through a standard Tee jet spray nozzle. In addition, the flow of the reagents in the head process in full due to the high viscosity of the resulting slurry leads to increased energy consumption for its transportation. In a tubular reactor serves 44,2 tons of phosphoric acid with a concentration of P2O5- 40% (85.0 per cent of the total) and mix with 5,337 tons of ammonia at a pressure of 8.0 MPa. The polyphosphate formed produces a stable liquid ammonium phosphate fertilizer which may be transported and stored at ambient temperatures for substantial lengths of time without significant precipitation or solidification of the product. Process involves neutralization of phosphoric acid with ammonia at elevated pressure, stirring of resulting mixture in static mixer, and subsequent granulation and drying of product. 1. The spray reactor may be a conventional spray vessel constructed of suitable alloys to withstand the conditions of the reaction, for example, stainless steel. production” and that a scarcity of PR is looming • An exhaustive review (IFDC, 2010) provides more details on global P reserves. A method of producing ammonium phosphates, including the neutralization of phosphoric acid with ammonia at elevated pressure, the mixture in the static mixer and subsequent granulation and drying of the product, characterized in that the neutralization lead in two stages, the first of which serves 80-85% NCRHO4of the total number of the quality and the process is conducted at a pressure of 3.5 to 8 MPa, This proskokova concentration of ammonia is approaching equilibrium. A one vessel process for manufacturing stable ammonium phosphate fertilizer utilizes a spray reactor in which phosphoric acid is reacted with ammonia to form ammonium phosphate. Using quality raw materials and performing their utility optimization, we have intensified process with enhancing production capacity. The product had the following analysis: The product had a nutrient availability (citrate solubility test) of 100%. The mixture is then sent to the second stage of neutralization, which also introduced to 9.1 tonnes (17.5% of total) phosphoric acid and sinks. and in the second stage serves the remaining amount of acid and reduce the pressure to 1.5 to 3.0 MPa, and mixing are simultaneously processing the mixture by ultrasound with a power pulse from 100 to 1000 watts and before pelleting pressure reduce by 0.5-0.8 MPa compared to the pressure of the second stage of neutralization. In a tubular reactor serves to 41.6 tonnes of phosphoric acid with a concentration of P2About5- 40% (80% of the total) and mix with 6,120 tons of ammonia at a pressure of 3.5 MPa. The mixture of products of neutralization in the second stage also stirred blade static mixer, the blades of which are emitters of ultrasonic vibrations with capacity pulse Nthe acoustic.=1000 watts. Mono Sodium Phosphate Monosodium phosphate which is also known as anhydrous monobasic sodium phosphate and sodium di-hydrogen phosphate, is a compound of di-hydrogen phosphate and sodium. Short video of Bifox Phosphate production process in Caldera Chile, May 2019. Phosphoric Acid is manufactured from Rock Phosphate. Modern synthetic fertilizers are composed mainly of nitrogen, phosphorous, and potassium compounds with secondary nutrients added. Phosphate fertilizers – Manufacturing process of Phosphate fertilizers Phosphate rock (PR) is the raw material used in the manufacture of most commercial phosphate fertilizers on the market. Typically the spray reactor is operated under a slight vacuum, though it could be operated under atmospheric or slightly pressurized conditions as well. According to invention, neutralization is carried out in two steps: in the first step, 80-85% H3PO4 of its total amount is added and process is carried out at gauge pressure 3.5-8 atm and, in the second step, the rest of acid is added and pressure is lowered to pressure 1.5-3.0 atm. NPK 1.3. The ammoniation is conducted under conditions which form sufficient ammonium polyphosphate to stabilize the solution in the liquid condition. In this process, granular DAP (diammonium phosphate) is formed by mixing 18% nitrogen and 46% phosphorus pentoxide. The mixture transport pipe is directed to homogenization in a static mixer and then, if necessary, the product the edge of irout and dried. Phosphate additive utilizes nitroammophosphate at weight ratio N:P2O5 equal to 23:21 or 26:13 and phosphate additive melt is preliminarily completely or partly separated from infusible solid phase, after which phosphate additive is introduced in amount 2-6% (as P2O5) of the weight of final product. This test is normally regarded as being equivalent to one month ambient storage. A stable ammonium polyphosphate fertilizer was made in the spray reactor described previously by introducing wet process merchant grade phosphoric acid having a P2 O5 content of 56.63% to the spray vessel. While particular embodiments of the invention have been described, it will be appreciated by those skilled in the art that various modifications may be made within the teachings of the invention. Phosphate Ore 1.6. and more… The second stage serves the remaining phosphoric acid and reduce the pressure. The acid temperature was about 245° F. Anhydrous ammonia at a temperature of about 450° F. was introduced at the bottom of the spray reactor at a flow rate of about 1-2 gpm. On the 11th stage of the process of deoxidation of the pulp, leading to low values of the viscosity of the pulp due to the hysteresis effect of the viscosity of the pulp by neutralizing phosphoric acid pereaminirovanii pulp. The acid flow rate was about 10.5 gpm. The obtained homogeneous mixture of products of neutralization and steam (T=125° (C) is reduced to a pressure of 2.2 MPa (reduced pressure 0.8 MPa) to obtain a homogeneous vapor-liquid emulsion (T=120°C), which is then subjected to granulation and drying in the apparatus of the BGS. In a common method, a one-to-one ratio of ammonia (NH₃) and phosphoric acid (H₃PO₄) is reacted and the resulting slurry of MAP is solidified in a granulator. Typically the temperatures of the ammonia feed would be between about 400° F.-600° F. and the temperature of the acid is between ambient up to boiling. "Straight" fertilizers contain only a single nutrient. The process description shows a production process for diammonium phosphate [/caption] Ammoniation-granulation. The disadvantage of this method is that the pulp entering the granulation of the transport pipeline, has a rather heterogeneous composition, which affects the granulation conditions and the quality of the finished product. The ammonium phosphate may be used as is or mixed with other materials to form various fertilizer compositions. This report presents the economics of a typical phosphonitric process for NPK Fertilizer production in the United States from rock phosphate, phosphoric acid, ammonia, and nitric acid. In a tubular reactor serves 42.9 tonnes of phosphoric acid with a concentration of P2O5- 40% (82.5 per cent of the total) and mix with 5,543 tons of ammonia at a pressure of 5.0 MPa. The methods and economics of the principal modern manufacturing processes are evaluated and compared. The process could use superphosphoric acid, but more typically will use the more dilute wet process merchant grade phosphoric acid. Production Of Prom (phosphate Rich Organic Manure) Production of PROM (Phosphate Rich Organic Manure): An Emerging Biofertilizer, Manufacturing of PROM Fertilizer - Toward a Sustainable Agriculture Phosphate rich organic manure is a type of fertilizer used as an alternative to di ammonium phosphate and single super phosphate Phosphorus is required by all plants but is limited in soil, … The product had the following analysis: It can be seen that the conversion of phosphate to polyphosphate in Example III was low. The most important ones are single and triple superphosphates (SSP, TSP) and ammonium phosphates (MAP, DAP). The method is illustrated by the following examples. Processes of manufacturing ammonium phosphate fertilizer using a variety of techniques are well known in the art and have been described in the following U.S. patents: The disclosures of the above patents are incorporated by reference herein. The resulting mixture of products of neutralization mix blade static mixer, the blades of which are emitters of ultrasonic vibrations with capacity pulse Nthe acoustic.=1000 watts. Triammonium phosphate can be prepared in the laboratory by treating 85% phosphoric acid with 30% ammonia solution: H 3 PO 4 + 3 NH 3 → (NH 4) 3 PO 4. Normally the flow rates are such that residence time of the acid is between about one second to 10 seconds or more. The aqueous ammonia condensate may be subsequently used as blend stock in preparing mixed fertilizers, as is known in the art. In some cases, particularly where the concentration of impurities is high, solidification of the fertilizer may occur. The ammonium phosphate solution is removed from the bottom of the spray reactor. The pressure, through the spray nozzle was 30 psig. This method involves the use of ultrasound primarily at the stage of mixing in a static mixer (homogenization of the pulp). However, the particle size must be large enough so that the acid falls to the bottom of the reactor and is not unduly entrained in the exhaust gases. At 100 °C, the dissociation pressure of diammonium phosphate is approximately 5 mmHg. This mono ammonium phosphate is formulated in our latest processing unit by using top-notch quality ingredients and sophisticated techniques as per the set standards of market. In industry, NPK fertilizer is made of single basic fertilizer such as urea, ammonium nitrate, ammonium chloride, ammonium sulfate, monoammonium phosphate, diammonium phosphate, bicalcium, superphosphate, potassium chloride, potassium sulfate, etc. The production of liquid ammonium phosphate and ammoniated superphosphates in fertilizer mixing plants is considered a separate process. also enter 10.4 tons (20% of the total) phosphoric acid. To produce fertilizer in the most usable form, each of the different compounds, ammonium nitrate, potassium chloride, ammonium phosphate, and triple superphosphate are granulated and blended together. Sonication provides a nearly ideal mixing, completely eliminates the clogging of the mixer. Recycling of ammonia by our proposed method to 3.0% (161,4 kg), injected into the process, reducing dust recycling 50% (from 37 g/m3to 18.5 g/m3). When this molar ratio NH3:H2RHO4in the products of neutralization in the first stage neutralization supported =1,45, and the second stage =1,05. after being crushed to a certain fineness, the material is agglomerated and granulated in the rotary drum granulator or disk granulator through … Privacy Policy Stirring is effected simultaneously with ultrasonic treatment of the mixture with pulse power from 100 to 1000 W and, before granulation, pressure is lowered by 0.5-0.8 atm relative to pressure of the second neutralization step. This intimate contact continues for a sufficient time to allow the ammoniation reaction to proceed toward completion. Phosphate rock is fed to a series of reactors along with recycled phosphoric acid from the process. The ammonium polyphosphate produced by the reaction may be blended with the condensate. A stable ammonium polyphosphate fertilizer was made in the spray reactor described previously by introducing wet process merchant grade phosphoric acid, having a P2 O5 content of 56.63% to the spray vessel. The problem is solved in the proposed method of producing ammonium phosphates, including the neutralization of phosphoric acid with ammonia at elevated pressure, the mixture in the static mixer and subsequent granulation and drying of the product. If desired the liquid effluent may be recycled to the spray reactor, through additional nozzles, to allow the reaction to proceed further towards completion. 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