patent of dicalcium phosphate from rock phosphate





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John F McCullough Inventions, Patents and Patent ,Abstract: dicalcium phosphate is prepared from phosphate rock by a process which comprises reacting phosphate rock with sulfur dioxide and an organic carbonyl compound for 05 to 10 hours while maintaining the temperature of the reaction mixture below 50degree C...know more

Indian Patents 202038:A PROCESS FOR THE MANUFACTURE OF ,Full Text: This invention relates to a process for the manufacture of feed grade dicalcium phosphate Dicalcium phosphate known, as DCP is a commonly used animal feed supplement and it is desirable to obtain dicalcium phosphate free of contaminants, particularly fluoride containing compounds...know more

Production of dicalcium phosphate or , - Free Patents OnlineFeb 06, 2001· It also relates to methods for the manufacture of monocalcium phosphate fertilizer, edible monocalcium phosphate and edible dicalcium phosphat BACKGROUND OF THE INVENTION Tricalcium orthophosphate, Ca 3 (PO 4) 2, commonly known as calcium phosphate, occurs in nature as rock phosphate ore, for example and is used as such as a source of ....know more

grind calcium phosphate production 13622dicalcium phosphate production line machinery equipment Dicalcium phosphate , machinery equipment Dicalcium phosphate plant line,if you want get more information click here right side , Patent US2567227 - Production of calcium , Citing Patent Filing date ...know more

Phosphate Rocks Market - Global Industry Analysis and ,Phosphate rock is a sedimentary non-detrital rock that contains large quantity of phosphate minerals This rock is also referred to as phosphorite or rock phosphate It is formed in the form of calcium phosphate and typically seen in oceans Phosphorous is obtained from Phosphate rock which is utilized to manufacture chemicals...know more

Dicalcium-Phosphates- Process, Technology, Applications ,Dicalcium phosphate crystals are precipitated and after filtration and drying the resulting product is a very pure crystalline dihydrate dicalcium phosphate that is sold as Aliphos® Dical Dicalcium phosphate is obtained from degreased bones which are demineralised by hydrochloric acid treatment and precipitated by a saturated lime solution...know more

Process for the production of dicalcium phosphate - Fox ,Compared with superphosphate manufacture, the production of dicalcium phosphate for fertilizer purposes, by the conventional method of dissolving phosphate rock in hydrochloric acid and precipitating the phosphate with milk-oflime, is uneconomical of reagent materials...know more

Phosphate Minerals - Soil Science at UW-MadisonIn reality, the existence of 49 known calcium phosphates, 14 magnesium phosphates, 49 aluminum phosphates, and 51 iron phosphates (and some contain one or more of these cations) points to the complexity of the chemistry of phosphate minerals in soils and it is dubious that any fertilizer reaction species or series is more than illustrative...know more

phosphate rock digestion with hydrochloric acid - YouTubeJul 26, 2016· Phosphate rock shipped from mine, digestion of rock phosphate ? phosphate rock digestion with hydrochloric acid ? gold process for making dicalcium phosphate from rock phosphate dicalcium ....know more

Method of granulating the fine phosphate rockThe mixture was added in phosphate raw materials in the amount of 004 to 03 century o'clock on the 1 century, including phosphate rock Possibly as a mixture to use the product decomposition of phosphate rock with sulfuric and/or phosphate ac...know more

US4113842A - Preparation of dicalcium phosphate from ,A method of preparing dicalcium phosphate from phosphate rock wherein the rock is treated with a mixture of water, carbonyl, and sulfur dioxide Solids are separated from the liquid phase The solid phase consists of a mixture of gangue, and calcium α-hydroxysulfonate Carbonyl and part of the sulfur dioxide are recovered from the solid by low temperature thermal decomposition...know more

dicalcium phosphate process fluoride phosphoric acidDi-calcium phosphate by direct acidulation of phosphate rock phosphate rock to the filtrate and final separation of di-calcium phos phates , tween sulfuric acid, tri-calcium phosphate and calcium fluoride The tri-calcium phosphate , water is sprayed In this process phosphoric acid, mono-calcium phos Read More...know more

manufacturing process of dicalcium phosphatePatent US3294486 - Manufacture of dicalcium phosphate, dihydrate , (Cl 23-109) The present invention is concerned with a process for the manufacture of dicalcium phosphate dihydrate from a calcium compound, phosphoric ac...know more

Patents on Phosphate processing - bone and rock phosphate ,The phosphate has to be solubilized to facilitate absorption by plants The solubilization process is essentially the same as proposed by Liebig for bone phosphate But acid treatment of rock phosphate releases hydrogen fluoride and silicon fluoride...know more

US3391992A - Feed grade dicalcium phosphate - Google PatentsUS3391992A US37268664A US3391992A US 3391992 A US3391992 A US 3391992A US 37268664 A US37268664 A US 37268664A US 3391992 A US3391992 A US 3391992A Authority US United States Prior art keywords acid superphosphoric dicalcium phosphate diluted wet Prior art date 1964-06-04 Legal status (The legal status is an assumption and is not a legal conclusion...know more

innophos Calipharm A (Dicalcium Phosphate, ,recommendation for uses which infringe valid patents or as extending license under valid patents Particle size: 04 % E 341 (ii) This product complies with current European Union Directive No 231/2012 ® (Dicalcium Phosphate, Anhydrous) (2/2) Lead <025 ppm 001 % BSE/TSE No materials of animal origin are used Residual Solvents The ....know more

Patent Of Dicalcium Phosphate From Rock PhosphateDicalcium Phosphate Patents anreximin patent of dicalcium phosphate from rock phosphate Patents on Phosphate processingbone and, But acid treatment of rock phosphate Get Information; phosphate rock dicalcium Dicalcium phosphate Wikipedia Dicalcium phosphate is the calcium phosphate with the formula CaHPO4 and its dihydrate...know more

Phosphorus availability of rock phosphates as compared ,Although the present results showed differences between feed grade and rock phosphates only for ALP, the influence of rock phosphate in the P concentrations was noted by Plumlee et al (1958), who verified that supplementation by dicalcium phosphate increased (P<001) the P levels more than Curaçao rock phosphate...know more

dicalcium phosphate production lineProduction of dicalcium phosphate by treatment of phosphate rock The process is based on the nitric acidulation of phosphate rock concentrate, followed »More detailed 45/5(29K) Dicalcium phosphate Wikipedia Dicalcium phosphate is the calcium phosphate with the formula CaHPO 4 and its dihydrate...know more

Phosphate Minerals - Soil Science at UW-MadisonIn reality, the existence of 49 known calcium phosphates, 14 magnesium phosphates, 49 aluminum phosphates, and 51 iron phosphates (and some contain one or more of these cations) points to the complexity of the chemistry of phosphate minerals in soils and it is dubious that any fertilizer reaction species or series is more than illustrative...know more

US Patent for Production of dicalcium phosphate or ,Apr 04, 2001· A process is provided for the production of dicalcium phosphate form a phosphate source material in which a solution of phosphoric acid is produced by the action of a suitable mineral acid, generally sulphuric acid, on a phosphate source material Calcium fluoride is precipitated at a pH of between 35 and 45 followed by hydrolyzing the solution by diluting it with water to a ratio of ....know more

Leslie R Tate Inventions, Patents and Patent Applications ,Abstract: A method of preparing dicalcium phosphate from phosphate rock wherein the rock is treated with a mixture of water, carbonyl, and sulfur dioxide Solids are separated from the liquid phase The solid phase consists of a mixture of gangue, and calcium alpha-hydroxysulfonate Carbonyl and part of the sulfur dioxide are recovered from the solid by low temperature thermal decomposition...know more

Processes for the manufacture of feed-grade dicalcium ,Oct 26, 1976· The invention relates to a combined process for the manufacture of feed grade dicalcium phosphate and pure phosphoric ac The process comprises the reaction of an excess of phosphate rock with aqueous solutions of a mineral acid selected from hydrochloric acid, phosphoric acid and nitric acid, characterized by the fact that the free acidity of the dissolution liquor does not exceed 60% and ....know more

THE ECOPHOS PROCESS FOR PRODUCING DIHYDRATE ,pure dihydrate dicalcium phosphate In the final stage, this precipitate is granulated and dried This Ecophos process has several advantages over classic technology: The classic process uses sulphuric acid to dissolve rock phosphate; but, in addition to the P2O5, most of the other chemical elements present in the rock...know more

Phosphorus availability of rock phosphates as compared ,Although the present results showed differences between feed grade and rock phosphates only for ALP, the influence of rock phosphate in the P concentrations was noted by Plumlee et al (1958), who verified that supplementation by dicalcium phosphate increased (P<001) the P levels more than Curaçao rock phosphate...know more

Monocalcium phosphate production processPreparation of monocalcium phosphate slurry is carried out in two stages, at first stage the phosphoric acid is mixed with limestone up to mixture pH =29-31, at second stage - up to mixture pH =35-37, during mixing of monocalcium phosphate slurry with lime pH is maintained in the range 54-56...know more

US Patent for Production of dicalcium phosphate or ,It also relates to methods for the manufacture of monocalcium phosphate fertilizer, edible monocalcium phosphate and edible dicalcium phosphat BACKGROUND OF THE INVENTION Tricalcium orthophosphate, Ca3(PO4)2, commonly known as calcium phosphate, occurs in nature as rock phosphate ore, for example and is used as such as a source of fertilizer...know more

Di-calcium phosphate by direct acidulation of phosphate ,di-calcium phosphate by direct acidulation of phosphate rock In general, when phosphate rock is treated with sulfuric acid, mono-calcium phosphate or phosphoric acid is formed If less sulfuric acid is used, di-calcium phosphate should be formed theoretically, however only mono-calcium phosphate and undecomposed phos­ phate rock result in ....know more

Tricalcium phosphate - WikipediaTricalcium phosphate (sometimes abbreviated TCP) is a calcium salt of phosphoric acid with the chemical formula Ca 3 (PO 4) 2It is also known as tribasic calcium phosphate and bone phosphate of lime (BPL)It is a white solid of low solubility Most commercial samples of "tricalcium phosphate" are in fact hydroxyapatite...know more

Negative Effects of Dicalcium Phosphate | LivestrongDicalcium phosphate is a calcium supplement commonly found in prepared breakfast cereals, in pharmaceuticals as an inert ingredient to bind tablets, and in toothpast However, too much dicalcium phosphate, or dicalcium phosphate taken in conjunction ,...know more