dicalcium phosphate patents
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dicalcium phosphate patents

US2021527A - Process of producing dicalcium phosphate

phosphate dicalcium phosphate solution acid Prior art date 1931-08-31 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 US629744A Inventor Suchy Robert Reubke Emil

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Production of dicalcium phosphate or monocalcium

2001-4-4  The dicalcium phosphate is then filtered and dried at a step indicated by numeral (13) to yield a dicalcium phosphate product having less than 1000 ppm fluorine. If required, the product dicalcium phosphate could be converted to monocalcium phosphate using phosphoric acid in known manner.

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US3391992A - Feed grade dicalcium phosphate - Google

dicalcium phosphate diluted wet Prior art date 1964-06-04 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 Inventor James W Watson

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US Patent for Production of dicalcium phosphate or ...

1999-8-25  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.

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Dicalcium phosphate as gum base filler - Warner-Lambert ...

Formulations CD have only dicalcium phosphate anhydrate as a gum base filler. A mixture of talc and dicalcium phosphate anhydrous was used in gum bases E, F, and G. As previously discussed dicalcium phosphate anhydrous is preferred over the dihydrate form due to its process advantages and advantageous chew, texture and flavor release properties.

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US Patent for 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 .alpha.-hydroxysulfonate. Carbonyl and part of the sulfur dioxide are recovered from the solid by low temperature thermal decomposition.

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US4177052A - Process for preparing dicalcium phosphate ...

There is disclosed a process for preparing fertilizers containing dicalcium phosphate from phosphates of mineral origin by mechanical activation. According to the invention grains larger than 5 mm of the sized or unsized starting phosphate compound of mineral origin are granulated up to a grain size of 1 to 4 mm, the granulated phosphate obtained is admixed with monocalcium phosphate and the ...

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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 ...

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Dicalcium-Phosphates- Process, Technology, Applications ...

2008-11-7  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.

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Product Information DICALCIUM PHOSPHATE,

2017-6-28  infringe valid patents or as extending license under valid patents. Product Information DICALCIUM PHOSPHATE, ANHYDROUS USP/FCC 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.

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Process for preparing dicalcium phosphate containing ...

United States Patent 4177052. Abstract: There is disclosed a process for preparing fertilizers containing dicalcium phosphate from phosphates of mineral origin by mechanical activation. According to the invention grains larger than 5 mm of the sized or unsized starting phosphate compound of mineral origin are granulated up to a grain size of 1 ...

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US Patent for 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 .alpha.-hydroxysulfonate. Carbonyl and part of the sulfur dioxide are recovered from the solid by low temperature thermal decomposition.

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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. 2009109920/includes 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 ...

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Process for the preparation of dicalcium phosphate ...

1990-5-10  For the preparation of dicalcium phosphate dihydrate stabilized with dimagnesium phosphate trihydrate and sodium pyrophosphate, an aqueous suspension of calcium carbonate is introduced into a reactor and recirculated by pumping through a high-speed mixer at 3,500 to 8,000 rpm which is in flow connection with the lower and upper portion of the reactor.

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The method of producing dicalcium phosphate

Dried dicalcium phosphate has the following dispersion consists of particles up to 10 µm 13% from 10 to 25 μm 51% from 25 µm to 50 µm 36% more than 50 μm UTS. In accordance with the requirements dicalcium phosphate, used as a component of toothpastes, the remainder of sifting sieve 005 (50 mm) should not exceed 0.2 wt.

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Indian Patents. 202038:A PROCESS FOR THE

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. Feed grade dicalcium phosphate has a chemical formula CaH PO4 2H2O wherein phosphorus expressed as P is 18% and calcium expressed as Ca is at least 23%.

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Product Information DICALCIUM PHOSPHATE,

2017-6-28  infringe valid patents or as extending license under valid patents. Product Information DICALCIUM PHOSPHATE, ANHYDROUS USP/FCC 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.

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Patents Assigned to Israel Chemicals Ltd. - Justia Patents ...

Justia - Patents - Patents and Patent Application Resources. Abstract: The invention relates to a combined process for the manufacture of feed grade dicalcium phosphate and pure phosphoric acid. 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 ...

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US Patent Application for Zinc Phosphate Containing ...

2021-6-23  2 to 8% alkali phosphate salts selected from sodium phosphate dibasic, potassium phosphate dibasic, dicalcium phosphate dihydrate, tetrasodium pyrophosphate, tetrapotassium pyrophosphate, calcium pyrophosphate, sodium tripolyphosphate, and mixtures of any two or more of these; 700 to 2000 ppm fluoride; in a silica abrasive dentifrice base.

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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. 2009109920/includes 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 ...

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The method of producing dicalcium phosphate

Dried dicalcium phosphate has the following dispersion consists of particles up to 10 µm 13% from 10 to 25 μm 51% from 25 µm to 50 µm 36% more than 50 μm UTS. In accordance with the requirements dicalcium phosphate, used as a component of toothpastes, the remainder of sifting sieve 005 (50 mm) should not exceed 0.2 wt.

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Patents Assigned to Israel Chemicals Ltd. - Justia Patents ...

Justia - Patents - Patents and Patent Application Resources. Abstract: The invention relates to a combined process for the manufacture of feed grade dicalcium phosphate and pure phosphoric acid. 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 ...

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patent production of dicalsium phosphate from ash

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. 2009109920/includes 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

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Calcium phosphate hydroxyapatite precursor and methods

The Effect of a Chewing Gum Containing Dicalcium Phosphate on Salivary Calcium and Phosphate , Ala. J. Med. Sci. 2:286 287 (1965). (SEA) Piecuch (1986): Augmentation of the Atrophic Edentulous Ridge with Porus Replamineform Hydroxyapatite (Interpore 200), Dental Clinics of

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Negative Effects of Dicalcium Phosphate Livestrong

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 with

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Phosphates - Production , Technology, Applications,

2013-3-7  Dicalcium Phosphate Anhydrous and Dihydrate and Tricalcium Phosphate manufactured serve many purposes in food applications. The main application for food grade phosphoric acid is in the production of cola beverages.

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Dicalcium Phosphate - an overview ScienceDirect Topics

2.4.4 Dicalcium Phosphate (DCP) DCP is an insoluble inorganic diluent. The anhydrous (triclinic crystal) and dihydrate (monoclinic structure) forms of DCP are used in pharmaceutical development ( Rowe et al., 2009 ). The dihydrate form of DCP presents good flow properties and low hygroscopicity. Based on the temperature (40–50°C) and ...

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innophos DI-TAB (Dicalcium Phosphate

2021-10-17  Revision Date: June 2015 innophos DI-TAB® (1/2) (Dicalcium Phosphate Dihydrate, Unmilled) PRODUCT DATA SHEET IDENTIFICATION CAS Number [7789-77-7] SYNONYM Dibasic Calcium Phosphate Dihydrate Phosphoric acid, calcium salt (1:1)

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