Calcium;phosphate | CaO4P PubChem

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Calcium;phosphate | CaO4P | CID 21226083 structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...

Patent Of Dicalcium Phosphate From Rock Phosphate

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Phosphate Rock Patente . Phosphate Rock Patents patents on phosphate rock benefication– Rock Crusher … patents on phosphate rock benefication XSM is a leading global manufacturer of crushing and milling ... Get Information; US 4113842 A Preparation Of Dicalcium Phosphate …

patent of dicalcium phosphate from rock phosphate

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patents on phosphate rock benefiion. benefiion for phosphate for sale patents on phosphate rock benefiion XSM is a leading global manufacturer of crushing and milling equipment (patents on phosphate rock benefiion),XSM also supply, Get More Info method for beneficiation of phosphate rock, Chat Ore Beneficiation Arabia noworriin.

US2778712A Digestion of phosphate rock Google Patents

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Example I The phosphate rock which was digested with nitric acid in this procedure was 72% B. P. L. Florida phosphate rock ground to 60% minus mesh. The ground rock was added progressively to a mass of 2000 parts of 32% nitric acid until a total of 1020 parts by weight of the rock had been added.

Phosphate mining in the United States Wikipedia

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The exact phosphate content of the phosphate rock mined in 2015 is not available, but in the latest fiveyear period for which ore grades are available, 20092013, the grade of US phosphate rock varied from to percent P 2 O 5. As of 2016, remaining reserves of phosphate rock in the United States totaled billion metric tons.

US Patent 4,191,734. Fluoridefree phosphate reactions ...

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Fluoridefree phosphate reactions Abstract. Substantially fluoridefree phosphoric acid is produced by the acidulation of phosphate rock with sulfuric acid wherein the acidulation reaction is conducted in the presence of added potassium as O bearing compounds, , , or KOH, and additional silica, to precipitate fluorides and silica as ...

Mechanical activation of the phosphate rock

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The direct application of phosphate rock seems to offer a better alternative in terms of low cost, least energyintensive and sophistication of processing of the phosphate ore to produce soluble fertilizers.

Using Rock Phosphate For Gardens What Does Rock ...

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Rock phosphate, or phosphorite, is mined from clay deposits that contain phosphorus and is used to make organic phosphate fertilizers that many gardeners utilize. In the past, rock phosphate was used alone as a fertilizer, but due to a lack in supply, as well as low concentration, most applied ...

phosphate rock 4181703

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Patent US4485077 Method for conducting wet … A method and system for conducting wet grinding of mined phosphate rock before utilizing the same for the …

"A PROCESS FOR MAKING SLOW RELEASE PHOSPHATE FERTILIZER"

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fertilizer grade FCMP from lowgrade rock phosphate ore and serpentinite. Objects of the invention The primary object of the present invention is to provide a process for making slow release phosphate fertilizer to reduce import of highgrade rock phosphate …

Apatite | Ca5FO12P3 PubChem

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Phosphate rock minerals are the only significant global resources of phosphorus. The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products.

PhosphateRock Mining , Technology, Applications, Patent ...

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Phosphate rock or phosphorite is a general description applied to several kinds of rock which contain significant concentrations of phosphate minerals. The two main sources for phosphate are guano, formed from droppings, and rocks containing concentrations of the calcium phosphate …

Phosphate organic fertilizer

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The amount of brown coal introduced into the composition of the fertilizer is 7098% of its mass. Fulvic acids present in brown coal, react with ions of calcium phosphate, which increases their solubility and digestibility of plants (the Federal Republic of Germany Patent No. 2603771, CL 05 In 21/00, 1977).

Phosphate Primer

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Animals get phosphate from their food. The bulk of the phosphate we mine – about 90% – is used to produce phosphate fertilizers. Another 5% is used to make animal feed supplements. The remaining 5% goes into making a variety of products from soft drinks to toothpaste to metal coatings. Phosphate is a limited resource that cannot be replaced.

US Patent for Preparation of monocalcium phosphate and ...

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Monocalcium phosphate, phosphoric acid and/or potassium phosphate containing fertilizers are produced in a process involving acidulation of phosphate rock with phophoric acid in the presence of added silicon dioxide and potassium ion whereby fluorides contained in the rock are converted to , wherein monocalcium phosphate dissolved in phosphoric acid is formed during acidulation.

FR2544300A1 Method for enrichment of phosphate rock ...

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process for enrichment of phosphate rock; on met phosphate rock contact 12 with hot gas with temperature 700 a 1600c for less period 60s, then on eliminates fine by classification 16 for phosphate improves 18 content of cadmium in sulfur and organic materials relatively low and this is particularly favorable for making phosphoric acid; the present in po phosphate rock fully recovered is almost ...

US Patent for Phosphate beneficiation process Patent ...

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FIG. 2 and 3 are schematic flowsheets showing the phosphate beneficiation process of a phosphate rock and a phosphate slime, respectively, utilizing the collector agent of the present invention. The preferred embodiment of the present invention will be described below and illustrated by means of working examples.

Method for manufacture of phosphoric acid from phosphate rock

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Aug 22, 1978· A method is disclosed for the manufacture of phosphoric acid directly from phosphate rock wherein the crushed phosphate rock is mixed with dilute phosphoric acid to form a slurry and the slurry is then heated to produce calcium monophosphate.

US3035867A Phosphate rock slurries containing a ...

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US3035867A US732089A US73208958A US3035867A US 3035867 A US3035867 A US 3035867A US 732089 A US732089 A US 732089A US 73208958 A US73208958 A US 73208958A US 3035867 A US3035867 A US 3035867A Authority US United States Prior art keywords phosphate rock weight percent acids slurry Prior art date 19580430 Legal status (The legal status is an assumption and is …

US2446978A Defluorination of phosphate rock Google Patents

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DEFLUORINATION OF PHOSPHATE ROCK 6 SheetsSheet 6 BY Wfmml ATTORNEYS aus. 10,1948 . DEFLUOBINATIONOF PHOSPHATE ROCK I Ernest J. Maust, Lakeland, `Fla., assigner to Coronet Phosphate Company, New York, N. Y., a corporation of New …

US4388180A Method for beneficiation of phosphate rock ...

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A process is disclosed which removes gangue minerals from phosphate rock by forming an aqueous slurry of phosphate rock and its impurities, then using a low boiling, nonpolar, water insoluble, bridging hydrocarbon to selectively agglomerate the phosphates.

Phosphate Rock Processing US EPA

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Phosphate Rock Processing Process Description15 The separation of phosphate rock from impurities and nonphosphate materials for use in fertilizer manufacture consists of beneficiation, drying or calcining at some operations, and grinding. The Standard Industrial Classification (SIC) code for phosphate rock processing is 1475. The ...

Method of granulating the fine phosphate rock

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The closest to describing the technical essence and the achieved result is another known method of granulation of fine phosphate rock and phosphate in the presence of a binder additive. According to this method, as a binder additives take a mixture of mineral acid and a neutral salt at a ratio of 210 century, including acid to 1 C. tsp salt.

Manufacturing the Second Most Produced Chemical Globally ...

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Phosphate rock is treated with sulfuric acid H2SO4 for dissolution of the phosphate rock in so called acidulation reaction. By optimizing the sulfuric acid concentration, a higher decomposition and better quality of phosphates can be obtained. The KPATENTS® Process Refractometer PR43GP monitors the concentration of final product.

Phosphate rock utilization Patent Europe PMC

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A process providing solubilization of phosphate rock by contacting the rock with sulfurous acid in the presence of an oxidizing agent selected from the group consisting of hydrogen peroxide and of sulfurous acid in combination with a substoichiometric amount of hydrogen peroxide significantly enhances the solubilization of phosphate rock.

US Patent for Method for the treatment of phosphate rock ...

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The method for the treatment of phosphate rock that has a content of magnesium compounds in excess of %. The crushed and screened phosphate rock is mixed with water in a ratio of 1:5 by weight. The mixture is acidified with sulphuric acid, and the reaction mixture is filtered and washed before the neutralization point is reached.

Thermal treatment of phosphate rock (Patent) |

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Extracts from thermally treated rock showed that the organic matter from the two source rocks reponds quite differently to the heat treatment. With current commercial calcination of both North Carolina and Idaho phosphate rock at about 800/sup 0/C, problems with acidevolvable sulfide formation have arisen.

patents on phosphate rock benefication

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us patent for manufacturing process of dicalcium phosphate. patents on phosphate rock benefication . patents on phosphate rock benefication lemongrassbe Dicalcium Phosphate Patents anreximin patent of dicalcium phosphate from rock phosphate Patents on Phosphate processingbone and, But acid treatment of rock phosphate Get A Quote process for making dicalcium phosphate from rock phosphate ...

US Patent for Process for upgrading raw phosphate ore ...

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The present invention is a process for upgrading feedstock prepared from raw phosphate ore. Phosphorus sludge is burned to produce impure phosphoric acid and the acid is combined with beneficiated phosphate ore to prepare anhydrous monocalcium phosphate. Feedstock prepared from raw phosphate ore is blended with anhydrous monocalcium phosphate to upgrade the feedstock.

PROCESS FOR DEFLUORINATION OF PHOSPHATE ROCK Patent ...

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The invention is a process for the manufacture of highly citrate soluble phosphatic materials containing at least 18% P and not more than % F and involves the thermal defluorination of phosphate rock analyzing between 68 and 74 BPL (BPL = % bone phosphate of lime or Ca3 (PO4)2 equivalent to P2O5 content of the rock). Such phosphate materials are used as animal feed additives.

US Patent for Production of dicalcium phosphate or ...

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A method of producing dicalcium phosphate from calcium phosphate includes reacting the calcium phosphate with a mineral acid such as sulphuric acid to produce a calcium salt and phosphoric acid. The calcium salt may then be hydrolyzed to form a calcium alkali which may then be reacted with the phosphoric acid to produce dicalcium phosphate.

patents on phosphate rock benefication– Rock Crusher Mill ...

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patents on phosphate rock benefication XSM is a leading global manufacturer of crushing and milling equipment (patents on phosphate rock benefication),XSM also supply individual (patents on phosphate rock benefication...) crushers and mills as well as spare parts of them.

HST series single cylinder cone crusher with hydraulic-driven system is a kind of new type high efficient…

PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing…

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