Dicalcium Phosphate Patents

  • Dicalcium Phosphate Manufacture United States Gypsum

    What is claimed is 1. A process for producing dicalcium phosphate from rock phosphate which comprises a Continuously feeding finely divided rock phosphate, sulfuric acid, and sea water to a first mixing zone and mixing them to form a slurry, the quantity of sulfuric acid and sea water charged being about equal to six equivalents of acid per mole of P 2 O 5 content of the rock and about 3 ...

  • Dicalcium Phosphate Dihydrate Having Improved Stability

    Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate andor tetrasodium pyrophosphate to inhibit spontaneous hydrolysis andor decomposition of the dicalcium phosphate dihydrate is widely used as a dental polishing agent with and without added fluoride.

  • Dicalcium Phosphate Dihydrate With Improved Stability

    United States Patent 4244931 . Abstract Dicalcium phosphate dihydrate containing a sufficient amount of trimagnesium phosphate andor tetrasodium pyrophosphate to inhibit spontaneous hydrolysis andor decomposition of the dicalcium phosphate dihydrate is widely used as a dental polishing agent with and without added fluoride. Now it has been ...

  • Method Of Producing Dicalcium Phosphate Feed

    A method of obtaining forage dicalcium phosphate, including the processing of phosphogypsum phosphoric acid in the presence of calcium hydroxide or sodium at pH 7-11 and concentration of P 2 O 5 0,7-2,752 gl to equilibrium AS the USSR 829559, C01

  • Dicalcium Phosphate Slurries Abstract Europe Pmc

    Apr 10, 1997 Patent. Share this article Share with email Share with twitter Share with linkedin Share with facebook. Abstract . Dicalcium phosphate is suspended in a structured surfactant, to provide a mobile, stable, dust-free slurry. Full text links . Free to read at EPO

  • Dicalcium Phosphate Dihydrate For Fluoride Dentifrice

    The monofluorophosphate compatibility of dicalcium phosphate dihydrate can be improved in processes in which a slaked lime slurry is reacted with phosphoric acid to form a monocalcium phosphate solution to which is added magnesium oxide, additional lime slurry and pyrophosphoric acid with later removal of the dicalcium phosphate dihydrate.

  • Dicalcium Phosphate Dihydrate For Fluoride Dentifrice

    The monofluorophosphate compatibility of dicalcium phosphate dihydrate can be improved in processes in which a slaked lime slurry is reacted with phosphoric acid to form a monocalcium phosphate solution to which is added magnesium oxide, additional lime slurry and pyrophosphoric acid with later removal of the dicalcium phosphate dihydrate. The improvement involved adding the magnesium oxide at ...

  • Effects Of A Dicalcium And Tetracalcium Phosphatebased

    Jun 30, 2016 The present study evaluated the effectiveness of a dicalcium and tetracalcium phosphate-based desensitizer in reducing dentin permeability in vitro.Dentin fluid flow was measured before and after treatment of dentin with patent dentinal tubules using 1 or 3 applications of the dicalcium and tetracalcium phosphate containing agent Teethmate TM TM and comparing the

  • Calipharm D Dicalcium Phosphate Dihydrate

    Dicalcium Phosphate Dihydrate 12 PRODUCT DATA SHEET IDENTIFICATION CAS N 7789-77-7 SYNONYM ... shall be construed as a recommendation for uses which infringe valid patents or as extending license under valid patents. Calipharm D Dicalcium Phosphate Dihydrate 22 On

  • Ditab Dicalcium Phosphate

    Dicalcium Phosphate Dihydrate, Unmilled PRODUCT DATA SHEET IDENTIFICATION CAS Number 7789-77-7 SYNONYM Dibasic Calcium Phosphate Dihydrate Phosphoric acid, calcium salt 11 ... recommendation for uses which infringe valid patents or as extending license under valid patents.

  • Dicalcium Phosphate Dihydrate 7789777

    Use Dicalcium phosphate Dihydrate is mainly used as a dietary supplement in prepared breakfast cereals, dog treats, enriched flour, and noodle products. It is also used as a tableting agent in some pharmaceutical preparations. It is used in poultry feed and also in

  • Dicalcium Phosphate Niwahana Feed

    DiCalcium phosphate is the calcium phosphate with the formula CaHPO4 and its dehydrate. This named as fertilizer grade Dicalcium phosphate and animal feed grade dicalcium phosphate. we are importing feed grade DiCalcium Phosphate. It has P 18 min, Ca 22.5 min, F 0.12 H2O 2 max, Ash 10ppm max, Pb 15ppm.

  • Dicalcium Phosphate As Gum Base Filler Warnerlambert

    This patent also discloses and claims a process for incorporation of the dicalcium phosphate dihydrate. U.S. Pat. No. 4,064,274 teaches that gum bases containing calcium carbonate as a filler produce chewing gums which tend to lose their sweetness retention after a few weeks of storage.

  • Dicalcium Phosphate And Its Method Of

    Anhydrous dicalcium phosphate having an assay of at least 90 percent by weight and composed of particles, a major proportion of which have a particle size of from about 0.1 to 1.0 microns and a specific surface area of at least 10 square meters per gram is prepared by adding well dispersed, substantially dry calcium oxide or calcium hydroxide to phosphoric acid having a concentration of from ...

  • Product Information Dicalcium Phosphate

    infringe valid patents or as extending license under valid patents. Product Information DICALCIUM PHOSPHATE, ANHYDROUS USPFCC GRADE DESCRIPTION Dicalcium Phosphate, Anhydrous is a white, odorless, tasteless powder. It is stable in air. European Pharmacopoeia EP 3rd ed. Certificates of Analysis are available on request.

  • Dicalciumphosphates 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.

  • Dicalciumphosphate Ca2o4p Pubchem

    Dicalciumphosphate Ca2O4P CID 21584077 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities ...

  • Method Of Producing Dicalcium Phosphate Feed

    FIELD chemistry. SUBSTANCE method of producing dicalcium phosphate feed involves a first stage, specifically treatment of calcined phosphogypsum with an alkaline carbonate-containing reagent to pH ranging from 9.15 to 10, a second stage, specifically mixing chalk pulp obtained at the first stage with purified phosphoric acid to pH ranging from 5.4 to 6 with subsequent filtration and drying ...

  • Us2287699a Stabilized Dicalcium Phosphate Google

    dicalcium phosphate pyrophosphate precipitate mother liquor alkali metal Prior art date 1940-02-15 Legal status The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. Expired - Lifetime Application number US319108A Inventor ...

  • Us20100196500a1 Anhydrous Dicalcium Phosphate

    The present invention provides anhydrous dicalcium phosphate particles which satisfies the conflicting requirements of the improvement of handling properties such as high flowability and a small bulk and the improvement of tableting properties at the same time during preparation and a method of producing the same. The method of producing anhydrous dicalcium phosphate by heating water ...

  • Us Patent For Production Of Dicalcium Phosphate Or

    Aug 25, 1999 Justia Patents Orthophosphate e.g., Calcium Hydroxyapatite US Patent for Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate Patent Patent 6,183,712 Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate Aug 25, 1999

  • Us Patent For Use Of Dicalcium Phosphate Anhydride Powder

    Feb 17, 2010 Justia Patents Particulate Form e.g., Powders, Granules, Beads, Microcapsules, And Pellets US Patent for Use of dicalcium phosphate anhydride powder Patent Patent 8,501,235

  • Method Of Producing Dicalcium Phosphate

    The prototype of the claimed invention is a method of producing dicalcium phosphate patent RF 2411222, publ. 10.02.2011, application No. 2009109920includes mixing phosphoric acid with limestone at 60-80 C bereturned with subsequent maturation and drying of the product flue gases at 120-145 C. to a residual moisture content of 1.5-2.5, characterized in that the mixture of lead in two

  • Negative Effects Of Dicalcium Phosphate

    Dicalcium phosphate is a calcium supplement commonly found in prepared breakfast cereals, in pharmaceuticals as an inert ingredient to bind tablets, and in toothpastes. However, too much dicalcium phosphate, or dicalcium phosphate taken in conjunction