manufacture of purified diammonium phosphate patents

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Diammonium hydrogen phosphate NH4 3PO4 PubChem

Diammonium hydrogen phosphate is an inorganic phosphate being the diammonium salt of phosphoric acid It is an inorganic phosphate and an ammonium salt Expand this section 2 Names and Identifiers Expand this section 3 Chemical and Physical Properties Expand this section 4 Spectral Information Expand this section 5 Related Records

Process for the manufacture of phosphate fertilisers and

An ammoniophosphate compound such as a monoammonium phosphate a diammonium phosphate or a mixture of these phosphates is reacted with sulphuric acid in the presence of water thus producing a mixture of ammonium sulphate and phosphoric acid which is reacted in a second stage with phosphate The latter can be a natural phosphate from any source

Purification and conversion of phosphoric acid to ammonium

Dec 02 1980 · Another object of the present invention is to convert the purified phosphoric acid to monoammonium phosphate diammonium phosphate or mixtures of mono and diammonium phosphate without first separating water from the purified acid Another object of the present invention is that the energy cost of solvent recovery be low

Ammonium dihydrogen phosphate NH4H2PO4 PubChem

Ammonium dihydrogen phosphate is the ammonium salt of phosphoric acid molar ratio 1 1 It contains a dihydrogenphosphate Expand this section 2 Names and Identifiers Expand this section 3 Chemical and Physical Properties Expand this section 4 Spectral Information Expand this section 5 Related Records Expand this section

Production method of low fluoride granular diammonium

The invention discloses a production method of a low fluoride granular diammonium phosphate product The method comprises the following steps 1 acid preparation taking pretreated phosphoric acid which is produced in the process of purifying wet process phosphoric acid and then proportionally mixing the pretreated phosphoric acid with the extracted phosphoric acid to ensure the mass

Neutralization Patents and Patent Applications Class 71

Abstract A process is disclosed for the manufacture of granular diammonium phosphate DAP by reacting anhydrous ammonia with phosphoric acid in a reactor to form reaction product consisting of a partially reacted slurry of monoammonium phosphate and diammonium phosphate The slurry is pumped to a rotary granulator reactor where it is further

US3514255A Production of granular diammonium phosphate

US3514255A US3514255DA US3514255A US 3514255 A US3514255 A US 3514255A US 3514255D A US3514255D A US 3514255DA US 3514255 A US3514255 A US 3514255A Authority US United States Prior art keywords stream diammonium phosphate unit phosphoric acid ammonia Prior art date 1969 04 30 Legal status The legal status is an assumption and is not a legal conclusion

Fertilizers Ammonium Phosphate – Chemical production and

The two commercial forms of orthophosphates are monoammonium phosphate MAP and diammonium phosphate DAP Polyphosphate fertilizers contain a variety of polymeric forms mixed with some orthophosphate Present production capacities for manufacturing ammonium phosphate fertilizers are given and future capacities are projected

diammonium phosphate manufacturing process

Diammonium Phosphate Manufacture Technology Free The following paragraphs describe a process for diammonium phosphate production from phosphoric acid and ammonia via an ammoniation granulation process using a pipe reactor The figure below presents a simplified flow diagram of the process

COLORED DIAMMONIUM PHOSPHATE MANUFACTURE PROCESS Patent

FIELD mineral fertilizers SUBSTANCE invention relates to manufacturing phosphorus containing mineral fertilizer in particular diammonium phosphate characterized by stable dark coloration and having high commercial success Process comprises mixing phosphoric acid with sulfuric acid stepwise neutralization of ammonia with acid mixture to attain NH3 H3PO4 molar ratio 1 4 in presence of

US4744965A Process for producing granular diammonium

A process is disclosed for the manufacture of granular diammonium phosphate DAP by reacting anhydrous ammonia with phosphoric acid in a reactor to form reaction product consisting of a partially reacted slurry of monoammonium phosphate and diammonium phosphate The slurry is pumped to a rotary granulator reactor where it is further reacted with anhydrous ammonia to form a solid granular

US Patent Application for HIGH PURITY HCN FROM

Phosphoric acid can be used at pH of less than 7 0 for acid charge to the quench column for recovering ammonium salts Non limiting examples of ammonium salts may include diammonium phosphate ammonium phosphate ammonium phosphite diammonium hydrogen phosphite ammonium sulfate etc The ammonium salt formed depends on the acid used

US Patent for Fugitive color fire retardant composition

In a fugitive color fire retardant composition the colorant initially colors the composition to a hue which contrasts with the hue of ground vegetation A non fugitive component is included in the colorant in an amount sufficient to provide improved aerial visibility when the composition is first aerially applied to the vegetation However the amount of non fugitive pigment is less than an

Method of recovering organic extractant in the production

Method for the production of purified phosphoric acid The organic phase containing tributyl phosphate is mixed with the aqueous phase and produce the mixture is divided in three stages In the first stage use water that is taken after the third stage

Phosphate Fertilizer Suppliers Manufacturer Distributor

Alibaba offers 1 701 Phosphate Fertilizer Suppliers and Phosphate Fertilizer Manufacturers Distributors Factories Companies There are 379 OEM 255 ODM 34 Self Patent Find high quality Phosphate Fertilizer Suppliers on Alibaba

History of Phosphate Fertilizer Production

DAP Diammonium Phosphate The fertilizer that quickly became the item of commerce because it had the highest concentration of phosphate and nitrogen at 18N – 46P 2 O 5 – 0K 2 O MAP Monoammonium Phosphate This fertilizer is essentially the same as DAP but it has a lower concentration of nitrogen at 11N – 52P 2 O 5 – 0K 2 O

Chromium III phosphate Wikipedia

Preparation of textured chromium phosphate is carried out by mixing equimolar solutions of aqueous chromium nitrate and diammonium phosphate in a dish placed in a sealed chamber with the low temperature ammonia vapor catalyst diffusing into the solution at a constant rate

P R O D U C T D A T A S H E E T Brewcraft USA

Diammonium Phosphate Anhydrous DAP FCC Food Grade from either ICL Performance Products LP or ICL Fosfatos y Aditivos México S A de C V Seller as applicable is a white granular product which complies with the specification of the current Food Chemicals Codex for Ammonium Phosphate

Intumescent Patents and Patent Applications Class 252 606

Oct 04 2016 · Intumescent Patents Class 252 606 ammonium diammonium phosphate ammonium sulfate urea and a complexing agent The present invention also provides a method for treating wood and wood obtained by said method ARTICLES OF MANUFACTURE AN APPARATUS FOR MANUFACTURE AND A PROCESS FOR MANUFACTURE THEREOF

Method for treatment of flax fiber

The invention can be used in textile industry for obtaining purified flax fibre suitable for the manufacture of a wide range of materials for technical use for insulation in the construction industry design elements and sound absorbing panels in the automotive industry for which the required fire retardant properties

Method for treatment of flax fiber Patent search search

C map monoammonium phosphate TU 2186 670 00209438 01 Granulated product mass fraction of nitrogen 12±1 mass fraction of total phosphate 52±1 g diammonium phosphate TU u 14005076 055 2000 Appearance granules of grey The way to implement a consistent carrying out the following operations

Process for the production of ammonium phosphate SWANN

In a direct process for producing diammonium phosphate by the reaction of coke oven gas ammonia with phosphoric acid in which crystals of diammonium phosphate settle out in one part of a saturated solution thereof said solution having a hydrogen ion concentration within the limits of pH 6 8 and pH 7 6 the step of withdrawing a portion of such

US4610853A Process for producing purified monoammonium

A process for producing purified monoammonium phosphate abbreviated to MAP directly from wet process phosphoric acid with a high yield is provided which process comprises reacting wet process phosphoric acid with NH 3 at 50° 80° C while keeping the molar ratio of NH 3 H 3 PO 4 at 0 9 1 35 separating the resulting slurry containing MAP crystals and an insoluble sludge into a slurry

Phosphorus Fertilizer Production and Technology

Today most P fertilizer production is based on acidification of apatite from phosphate rock PR Guano mining Chincha Islands Peru 1860 Guano mining Chincha Islands Peru 1860 U S phosphate operation late 1800s The chemical symbol for the element phosphorus is P The fertilizer industry often uses the more generic term phosphate

Diammonium phosphate manufacturing process Henan Mining

AN ALTERNATIVE ROUTE FOR MANUFACTURE OF 23 Phosphate rich organic manure 9 24 Processes in ammonium phosphate production 9 25 Air separation in the presence of a magnetic field 11 26 Manufacture of diammonium phosphate fertilizer 12 27 Reaction of copper with oxygen air 15 28 Properties and preparation of hydrogen 15 Live Chat

Mono ammonium Phosphate Products Msds Patents

lower ammonia content and may be less injurious to germinating seeds than diammonium phosphate The general agronomic effects of diammonium and monoammonium phosphates are equal for most soils Ammonium dihydrogen phosphate ADP or monoammonium phosphate NH4H2PO4 is formed when a solution of phosphoric acid is added to ammonia until the

A process for the production of Free Patents Online

Feb 17 1993 · 1 A process for the production of granulated diammonium phosphate containing fertilizers comprising ammoniation of phosphoric acid in a tubular reactor situated in a drier characterized in that all of the phosphoric acid and substantially all of the ammonia is fed via a tubular reactor feeding the drier and where the ratio of kg recycled material to kg product the recycle ratio is less

Diammonium phosphate Wikipedia

Diammonium phosphate DAP chemical formula NH 4 2 HPO 4 IUPAC name diammonium hydrogen phosphate is one of a series of water soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid Solid diammonium phosphate shows a dissociation pressure of ammonia as given by the following expression and equation

Tributyl Phosphate Suppliers Manufacturer Distributor

Alibaba offers 1 226 Tributyl Phosphate Suppliers and Tributyl Phosphate Manufacturers Distributors Factories Companies There are 542 OEM 483 ODM 130 Self Patent Find high quality Tributyl Phosphate Suppliers on Alibaba

Magnesium phosphate glass cements with ceramic type

DOE Patents Patent Magnesium phosphate glass cements with ceramic type properties 360601 Other Materials Preparation Manufacture is prepared from a cation leachable powder and a bivalent metallic ion accepting liquid such as an aqueous solution of diammonium phosphate and ammonium polyphosphate

diammonium phosphate manufacturing process

Fertilizer Manufacture Diammonium Phosphate Fertilizer from Wet Process Phosphoric Acid E CGet Price diammonium phosphate manufacturing process Email email protected Manufacture of Diammonium Phosphate DAP or YouTube May 13 2014 · Manufacture of Diammonium Phosphate The Mosaic Company sGet Price

Reclaiming used motor oil by Free Patents Online

Apr 22 1975 · Reclaiming used motor oil by chemical treatment with ammonium phosphate A method of claim 1 wherein the ammonium phosphate is chosen from among triammonium phosphate diammonium hydrogen phosphate ammonium dihydrogen phosphate and mixtures thereof Oil purified by the practice of this invention can be used as a burning oil

manufacture of di ammonium phosphate flowsheet BINQ

May 30 2013 · Patent US4758261 – Diammonium phosphate produced with a high 1 therein is shown a simplified flowsheet of the process of the present invention for the production of granular diammonium phosphate The feed phosphoric More detailed

Diammonium Hydrogen Phosphate at Thomas Scientific

Synonym s Diammonium hydrogen phosphate Phosphoric acid diammonium salt Formula NH4 2HPO4 Formula weight 132 06 Purity 98 CAS Number 7783 28 0 Harmonized Tariff Code 3105 30 Hazard Statements H315 H319 H335 Causes

DIAMMONIUM PHOSPHATE 7783 28 0 Chemical Safety

Diammonium phosphate DAP chemical formula NH4 2HPO4 IUPAC name diammonium hydrogen phosphate is one of a series of water soluble ammonium phosphate salts that can be produced when ammonia reacts with phosphoric acid

Diammonium hydrogen phosphate NH4 3PO4 PubChem

The toxic effect of diammonium phosphate was more pronounced than that of urea The toxic effect of diammonium phosphate resulted in a sudden fall of hematological parameters Hb red blood cell count Hct at higher concentrations and at lower concentrations gradual decreases were seen over comparatively longer durations

A process for the production of Free Patents Online

Feb 17 1993 · The present invention relates to a process for the production of granulated di ammonium phosphate containing fertilizers and comprising ammoniation of phosphoric acid in a tubular reactor situated in a drier All the phosphoric acid and substantially all the ammonia is fed via a tubular reactor feeding the drier The recycle ratio is less than 3 1

Method for production of diammonium phosphate

The air with the dust of diammonium phosphate is drawn from the cooler 5 by the fan 14 purified water in the absorber 13 and is discharged into the atmosphere Absorption liquid solution of ammonium phosphates from collection 12 flows into the collector of the second stage of purification of gas 9 is supplied to the phosphoric acid

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