منزل •patent production of dicalsium phosphate from ash

patent production of dicalsium phosphate from ash

  • AVAILABILITY OF DICALCIUM PHOSPHATE TO PLANTS, …

    Hill 12 showed that mixing dicalcium phosphate with other salts, especially ammonium sulfate, renders it more available. The purpose of the present investigation was to examine the availability to plants of dilcalcium phosphate when applied in different forms and mixed with ammonium sulfate. Two soils were chosen for the experiment.

  • US Patent for Process for the production of high purity ... - Justia

    This application is a 371 application of PCT/EP2008/063969, filed Oct. 16, 2008. TECHNICAL FIELD. The invention relates to a process for the production of phosphoric acid (PA) which may be recovered at very high purity such as electronic grade quality, food grade quality or pharmaceutical grade quality.

  • Phosphatic/potash compound fertilizer and method of production …

    A novel phosphatic/potash compound fertilizer and a method of producing the same are provided for improving the solubility of phosphate components contained in an incinerated ash residue of chicken droppings for efficient utilization of the ash residue, with the alkalis of the lime component origin being neutralized.

  • Recovery and separation of phosphorus as dicalcium phosphate …

    The main role of phosphate supplements is to deliver soluble and bioavailable phosphorus to plants and livestock as crop fertilizers or animal feed additives. 1 Crop fertilizers come in different forms such as monoammonium phosphate (NH 4 H 2 PO 4), diammonium phosphate ((NH 4) 2 HPO 4), single superphosphate (Ca(H 2 PO 4) 2 + CaSO 4 ·2H 2 O, 15–21 wt% P 2 O 5) and …

  • Calcium Sulfate (e.g., Gypsum, Anhydrite ... - Justia Patents Search

    Abstract: A process for producing a modified fly ash comprising the steps of providing, as a raw material, the raw fly ash discharged from a pulverized coal combustion boiler; classifying the raw fly ash into a crude powder and a fine powder; removing the unburned carbon contained in the crude powder by heating the crude powder at a temperature in a range of 500 to 1000° C.; …

  • Production of dicalcium phosphate or monocalcium phosphate

    The invention claimed is: 1. A process for the production of dicalcium phosphate from a phosphate source material comprising the steps of: (a) preparing a solution of phosphoric acid by the action of a suitable mineral acid on a phosphate source material; (b) optionally separating the solution from residual solid materials; and (c) treating the solution …

  • Patents on Phosphate processing - bone and rock phosphate

    1919. William H. ROSS, of Washington, D.C., (employee of the US Department of Agriculture): "Process for the removal of hydrofluoric acid from phosphoric acid", US Patent 1,329,273; filed July 26, 1919; pat. Jan. 27, 1920. "The two sources of commercial phosphoric acid are charred bones and phosphate rock.

  • Process for the preparation of dicalcium phosphate - Hoechst ...

    Production of an anticorrosive pigment on phosphate basis: : Maurer et al. 4166839: ... In Canadian Patent 1,090,531, a process for the preparation of stabilized dicalcium phosphate dihydrate is disclosed, in which water is initially introduced into a reactor equipped with a stirrer and double jacket and a solution or a suspension of ...

  • Leading Exporters Of Calcium Phosphates - WorldAtlas

    Bone ash was the major source of phosphates until 1840's and Phosphate rock mineral containing phosphorus, phosphates and phosphoric acids was first used in 1850's. A great deal of research was carried to produce dicalcium phosphate by acidulation of phosphate rock and usually when phosphate rock is treated with sulphuric acid, mono-calcium ...

  • Recovery and separation of phosphorus as dicalcium phosphate …

    With the rapid increase in the world population, the global demand for food production has been increasing steeply. This increase has resulted in an increased demand for phosphorus crop fertilizers and livestock feed additives. Considering recent predictions ...

  • US Patent for Composition for promoting healthy bone structure Patent ...

    A common cause of osteoporosis is the decrease in estrogen production following menopause that leads to an increase in bone resorption. ... Dicalcium phosphate 100 mg-1400 mg Excipient and 700 mg Approx. supplementary 28.64% calcium source Magnesium salts and/or 50-400 mg Essential for 200 mg Approx. chelates (to include vitamin D 8.18% ...

  • Nitric acid acidulation of phosphate rock and pyrolysis of …

    A modified method for producing a range of dicalcium phosphate containing phosphatic fertilizers and aqueous calcium nitrate is discussed. The process consists of reacting phosphate rock with nitric acid followed by pyrolysis of the resulting acidulate to produce dicalcium phosphate (CaHPO4) and to liberate approximately one-half of the initially consumed nitric …

  • Updated opinion and report on the safety of di- and …

    I.2.1. THE PRODUCTION OF DICALCIUM PHOSPHATE (SEE ANNEX). Di-calcium phosphate is a co-product from the gelatine manufacture. A sample typical production process description is given in the figure in annex (after GME, 2000 and EMFEMA, 2002). The typical dicalcium phosphate manufacturing process includes first a

  • Production of beta-tri-calcium phosphate (beta-tcp) with high …

    US-2020317523-A1 chemical patent summary. National Institutes of Health. National Library of Medicine. National Center for Biotechnology Information. PubChem. About. Posts. Submit. Contact. Search PubChem. Apologies, we are having some trouble retrieving data from our servers... PUGVIEW FETCH ERROR: 403 Forbidden . National Center for ...

  • Dicalcium Phosphate Bone Base Suppliers in India | Dicalcium Phosphate ...

    If you're seeking Dicalcium Phosphate Bone Base Suppliers in India or Dicalcium Phosphate for Cattle, Shivam Chemicals Pvt Ltd is the supplier you need to contact. Bone Base Di-Calcium Phosphate is an extremely popular choice amongst our clientele looking to prepare nutritious animal feed, especially for poultry animals.

  • acid attack method of a calcium-containing phosphate source for …

    BR-112020002477-A2 chemical patent summary. National Institutes of Health. National Library of Medicine. National Center for Biotechnology Information. PubChem. About. Posts. Submit. Contact. Search PubChem. Apologies, we are having some trouble retrieving data from our servers... PUGVIEW FETCH ERROR: 403 Forbidden . National Center for ...

  • Including Anticaking Or Antihygroscopic Function Patents and Patent …

    Abstract: Dicalcium phosphate dihydrate compositions having improved monofluorophosphate compatibility are prepared by reacting a lime slurry with phosphoric acid to form a monocalcium phosphate solution, and then further reacting the monocalcium phosphate solution with additional lime slurry to a pH in the range of from above about 2.2 to ...

  • DiCalcium Phosphate :: Niwahana Feed

    DiCalcium phosphate is the calcium phosphate with the formula CaHPO4 and its dehydrate. ... It has P 18% min, Ca 22.5% min, F 0.12% H2O 2% max, Ash 10ppm max, Pb 15ppm. The nature of the product is the melting acid, water soluble, Hygro capacity smell, heated to 900C around gradually lose water or crystallization. The Purity of the product ...

  • Calcium feed phosphate production using the low-temperature …

    In chicken feeding, the biological phosphate values (in comparison with beta-tricalcium phosphate, assumed as 100) are as follows: monocalcium phosphate 113, dicalcium phosphate 97, defluorinated phosphates 94–99 (Pleeler, 1972). In the phosphorus assimilation process, the compound type is not so important in the feed for ruminants.

  • Dicalcium;phosphate | Ca2O4P+ - PubChem

    Dicalcium;phosphate | Ca2O4P+ | CID 21584077 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...

  • Production of dicalcium phosphate or monocalcium phosphate

    1. A process for the production of dicalcium phosphate from a phosphate source material comprising the steps of: i. preparing a solution of phosphoric acid by the action of a suitable mineral acid on a phosphate source material; ii. optionally separating the solution from residual solid materials; and, iii. treating the solution with suitable alkaline calcium material to …