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  • The Manufacture of Sulfuric Acid and Superphosphate
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    The phosphate rock is ground until at least 75 is less than 75 ˜m microns in diameter and then analysed for composition The proportions of various minerals present are altered to give the desired composition Step 2 - Superphosphate manufacture Phosphate rock sulfuric acid and water are mixed and then allowed to dry and...

  • Oxygen atoms in 175 ng of Ca3 PO4 2 Yahoo Answers
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    Jun 01 2013 0183 32 Phosphoric acid can be prepared by reaction of sulfuric acid with phosphate rock according to the equation Ca3 PO4 2 3H2SO4=3CaSO4 2H3PO4 how many oxygen atoms are there in 175 ng of Ca3 PO4 2 Please include steps...

  • Chemical Production phosphoricacid
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    The wet process constitutes the addition of concentrated sulfuric acid 93 to fluorapatite phosphate rock and the consecutive vigorous mixing of the two substances University of York 2013 Important to know fluorapatite Ca3 PO4 2 is the basis of phosphoric acid as this is the reactant that contains phosphate a key component in...

  • Using Rock Phosphate Fertilizer In The Home Garden
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    Phosphate fertilizer for traditional agriculture is often further treated with sulfuric acid to produce Triple phosphate or Super phosphate by changing the composition of the phosphate it is rendered unsuitable for use in organic agriculture and gardening Phosphate Rock is not a complete fertilizer and is best used in combination with...

  • Difference Between Single Superphosphate and Triple
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    Feb 26 2020 0183 32 The key difference between single superphosphate and triple superphosphate is that single superphosphate is produced from phosphate rock and sulfuric acid whereas triple superphosphate is produced from phosphate rock and phosphoric ac Superphosphate is a group of fertilizers which provides the crops with phosphate mineral element There are three major types of...

  • Raw materials OCP Group
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    An intermediary product between rock phosphate and plant fertilizers phosphoric acid is a combination of rock phosphate and sulfuric ac OCP phosphoric acid is used in the food and pharmaceutical industries as well as in plant fertilizer and other industrial applications...

  • Nitrophosphate Mosaic Crop Nutrition
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    The sulfuric acid method of producing P fertilizer results in large amounts of calcium sulfate gypsum byproduct that incurs additional disposal costs Nitrophosphate production of P fertilizer differs because it involves reacting phosphate rock with nitric acid which is...

  • Phosphate Rock And Sulfuric Acid Pnmwg Fertilizers
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    Phosphate Rock And Sulfuric Acid they are characterized by a slow rate of release longer residual low burn potential low Many water soluble formulations are available for almost any specific need from plant starter high nitrogen fertilizers to minor element formulations...

  • Rock Phosphate Impurities And The Impact On Manufacturing
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    Rock phosphate demand worldwide for manufacturing phosphoric acid is growing exponentially The availability of good quality rock phosphate is limited Till the end of last century rock phosphate quality was good and little attention was given to the effect of impurities associated with these rocks With limited resource of good quality rock phosphate now phosphoric acid industry is forced to...

  • Phosphorus Fertilizers Soils
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    Phosphoric acid 0-54-0 is produced by treating finely ground rock phosphate with sulfuric acid or by smelting burning rock phosphate with coke and silica in an electric furnace and reacting with waterThe sulfuric acid product is called wetprocess or green acid and is most commonly used in the fertilizer industryThe smelted phosphorus product is called furnace acid and is not commonly...

  • PHOSPHORIC ACID H 3PO4 SULFURIC ACID H2SO4
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    The phosphate rock is first ground and fed to a reactor vessel for an acidulation reaction with sulfuric ac In the reaction the tricalcium phosphate in the phosphate rock is converted to phosphoric acid and to the insoluble salt calcium sulfate CaSO4 also known as gypsum The concentration of sulfuric acid...

  • PHOSPHATE FERTILIZER EXPERTISE
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    Phosphate rock slurry is pumped to the front-end of the reactor where it is reacted with sulfuric acid mixed with recycle acid from filter The reaction system is maintained at 80 176 C by recycling reactor slurry...

  • Preparation of monocalcium phosphate and/or phosphoric
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    Phosphoric acid plants are currently operated utilizing a basic and well-known process for the acidulation of phosphate rock which comprises reaction of the rock with sulfuric acid to form phosphoric acid with subsequent reaction of the phosphoric acid with for example ammonia to produce monoammonium phosphate MAP and diammonium phosphate DAP...

  • Chemistry help / can some one please help explain this
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    Jan 22 2010 0183 32 Phosphoric acid can be prepared by reaction of sulfuric acid with phosphate rock according to the equation Ca3 PO4 2 3H2SO4 --->3CaSO4 2H3PO4 How many oxygen atoms are there in 230 ng of Ca3 PO4 2 can some one please help explain this problem...

  • Production of defluorinated dicalcium phosphate from
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    A new process to produce defluorinated dicalcium phosphate DCP using phosphate rock concentrate has been developed This new process has as main characteristic the low concentration of P2O5 in the liquid phase The process comprises three main steps solubilization of the phosphate rock concentrate with sulfuric acid defluorination of the phosphoric acid solution with potassium sulfate and...

  • Phosphate Rock And Sulfuric Acid Cromalinsupport
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    If more sulfuric acid is added a mixture of phosphoric acid and gypsum calcium sulfate is obtained superphosphate or superphosphate of lime Ca H 2 PO 4 2 is a compound produced by treating rock phosphate with sulfuric acid or phosphoric acid or a mixture of the twoIt is the principal carrier of phosphate the form of phosphorus...

  • Phosphorus Fertilizer The Original and Commercial Sources
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    Mar 12 2018 0183 32 Defluorinated phosphate rock or phosphoric acid is used to make supplements by combining phosphate rock with phosphoric acid sodium carbonate and then calcine or react it with lime to get dicalcium phosphate Sulfuric ac This acid is used to produce phosphoric acid after reacting with phosphate rocks at phosphate plants...

  • Phosphate Rock and Sulfuric Acid SpringerLink
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    Abstract Phosphate rock and sulfuric acid are the two major raw materials for manufacture of phosphate fertilizers Nearly all commercial phosphate fertilizers are derived from phosphate rock the major exception is basic slag which derives its phosphorus indirectly from phosphate minerals that are present in iron ore or deliberately added to the iron blast furnace charge...

  • Dissolution of Phosphate Rock by Mixtures of Sulfuric and
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    May 15 2008 0183 32 The dihydrate process for the production of phosphoric acid is increasingly important as the basis for phosphate fertilizer plants The process involves dissolution of phosphate rock in an aqueous mixture of phosphoric and sulfuric acid and subsequent crystallization of calcium sulfate dihydrate from the product phosphoric acid solution...

  • How to Use Rock Phosphate Fertilizer In Your Garden Epic
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    Jan 23 2020 0183 32 Phosphate rock is a naturally-occurring fertilizer In most cases it reacts with sulfuric acid to make phosphoric acid P2O5 before it can be used The acid is added to pulverized phosphate rock Phosphoric acid is then processed further to create good fertilizers for...

  • Rock phosphate/sulfur fertilizer composition
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    The sulfuric acid produced may react with tri calcium orthophosphate rock phosphate also called tri calcium phosphate in the following way CA 3 PO 4 2 3H 2 SO 4 3CaSO 4 2H 3 PO 4 The sulfuric acid formed reacts with insoluble rock phosphate leading to nutrient mobilization The soluble form of phosphate may be phosphoric ac...

  • superphosphate Encyclopedia
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    superphosphate or superphosphate of lime Ca H 2 PO 4 2 is a compound produced by treating rock phosphate with sulfuric acid or phosphoric acid or a mixture of the twoIt is the principal carrier of phosphate the form of phosphorus usable by plants and is one of the world s most important fertilizers...

  • Comparative Study of the Dissolution of Phosphate Rock of
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    Abstract The experiments which we carried out will inform us about the conditions of a better decomposition of phosphate of Djebel Onk Algeria The purpose of this study is to compare the convertion rates of the P 2 O 5 of rock phosphate obtained by nitric attack and sulphuric attack The reactions are carried out by varying the reaction time from 3-90 min the temperature from 20-90 176 C...

  • How to Use Rock Phosphate Fertilizer In Your Garden Epic
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    Jan 23 2020 0183 32 Phosphate rock is a naturally-occurring fertilizer In most cases it reacts with sulfuric acid to make phosphoric acid P2O5 before it can be used The acid is added to pulverized phosphate rock Phosphoric acid is then processed further to...

  • Sulfuric acid
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    Sulfuric acid American / IUPAC spelling or sulphuric acid traditional / British spelling also known as oil of vitriol is a mineral acid composed of the elements sulfur oxygen and hydrogen with molecular formula H 2 SO 4It is a colourless and viscous liquid that is miscible with water at all concentrations...

  • Sulfuric Acid
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    72 fertilizers For example sulfuric acid is used to treat phosphate rock an insoluble material containing 73 phosphorous in the form of calcium phosphate Stoker 2007 The treatment of phosphate rock with 74 sulfuric acid yields phosphorus acid in the following reaction 75 76 Ca 3 PO 4 2 3H 2 SO 4 3CaSO 4 2H 3 PO 4 77...

  • Phosphate Rock in Utah
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    Dec 16 2017 0183 32 Beginning in 1952 raw materials consisting of phosphate rock concentrate sulfuric acid and anhydrous ammonia were imported to the site to produce phosphoric acid and dry phosphate fertilizers Phosphate rock containing calcium phosphate was dissolved in sulfuric acid to form phosphoric acid and gypsum calcium sulfate...

  • University of Tennessee Knoxville TRACE Tennessee
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    Sulfuric Acid Leaching of Low Grade Rock Phosphate I have examined the final electronic copy of this thesis for form and content and recommend that it be accepted in partial fulfillment of the requirements for the degree of Master of Science with a major in Chemical Engineering Robert M Boarts Major Professor...

  • Sulfuric acid H2SO4
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    In an experiment studying the clearance via the blood of radiolabeled sulfuric acid aerosol in different species the authors have observed that sulfur from sulfuric acid was rapidly cleared from 2 to 9 minutes from the lungs of animals into the blood following inhalation exposure Sulfate is a normal constituent of the blood and is a normal metabolite of sulfur-containing amino acids and...

  • US4743438A
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    An improved process for extending the capabilities of an existing conventional wet-process phosphoric acid production plant to more effectively utilize phosphate values contained in low purity phosphate rock which process comprises 1 adjustment of the maximum soluble sulfate level in phosphoric acid taken from for example the conventional wet-process acid facility prior to reacting same...

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