Calipharm A (Dicalcium Phosphate, .
Revision Date: April 2013 . Calipharm A® (Dicalcium Phosphate, Anhydrous) (1/2) PRODUCT DATA SHEET IDENTIFICATION CAS Number [] SYNONYM Dibasic Calcium Phosphate Anhydrous Phosphoric acid, calcium salt (1:1)
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Revision Date: April 2013 . Calipharm A® (Dicalcium Phosphate, Anhydrous) (1/2) PRODUCT DATA SHEET IDENTIFICATION CAS Number [] SYNONYM Dibasic Calcium Phosphate Anhydrous Phosphoric acid, calcium salt (1:1)
Jan 02, 1990· However, in the present invention, phosphoric acid is bombarded with calcium. The mixture is continuously agitated while a slurry of the calcium source is added, and forces the reaction to go from monocalcium phosphate to dicalcium phosphate and then to tricalcium phosphate.
USA US236886A USA USA US A US A US A US 236886 A US236886 A US 236886A US A US A US A US A US A US A Authority US United States Prior art keywords phosphate solution hydrolysis dicalcium phosphate containing Prior art date Legal status (The legal status .
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.
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.
phosphate monocalcium phosphate Prior art date 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 US13957A Inventor Charles H Milligan
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 and followed by hydrolyzing the solution by diluting it with water to a ratio of ...
Feb 06, 2001· Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate . United States Patent . Abstract: 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 ...
Apr 25, 2017· 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, monocalcium ...
This invention relates to the preparation of feed grade dicalcium phosphate from a source containing monocalcium phosphate such as super phosphate, concentrated super phosphate and the like. The first step consists of leaching water soluble mono calcium phosphate therefrom with water or recycle wash water from one of the subsequent steps.
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.
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 milkoflime, is uneconomical of reagent materials.
Oct 26, 1976· 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 that the free acidity of the dissolution liquor does not exceed 60% and ...
At about this time, 1856, Eben Horsford received a patent on a new baking powder derived from monocalcium phosphate (calcium dihydrogen phosphate, Ca(H 2 PO 4) 2 O. This baking powder was based on a mixture of rather impure phosphates and sodium bicarbonate. In 1885, sodium aluminium sulphate was used as an acid component for a baking powder.
Production of dicalcium phosphate or monocalcium phosphate from calcium phosphate Patent number: Abstract: 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.
This invention relates to a process for producing phosphoric acid and dicalcium phosphate. More particularly, the invention provides a process for obtaining relatively pure phosphoric acid and/or impure fertilizergrade dicalcium phosphate from lowgrade phosphatic raw materials as well as from highgrade phosphate rock. 2.
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.
In the production of dicalcium phosphate, it has been necessary to exert particular care in order that tricalcium phosphate be not produced. The tricalcium phosphate is objectionable because of its extreme fineness which makes filtration difficult and also because it is partially unavailable for fertilizer purposes.
Dicalcium phosphate is a crystalline feed grade Dicalcium phosphate containing % Minimum phosphorous and % Maximum calcium. The selected raw material of nonanimal origin and the production process ensures an end product with good phosphorous digestibility and a content of undesirable elements well below that stipulated by EU feed legislation.
Phosphate rock is the primary raw material source for phosphate production, but unfortunately mineable phosphate rock is a limited nonrenewable resource that may only last an additional 100 years. Large amounts of phosphorus end up in manures and in urban waste, mainly in sewage sludge and slaughterhouse waste.
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 and followed by hydrolyzing the solution by diluting it with water to a ratio of ...
From sewage sludge ash to calcium phosphate fertilizers. ... Process for the production of dicalcium phosphate Fox . ... PHOSPHATE ORE IN THE A process for the recovery of phosphate rock from an aqueous Phosphate matrix beneficiation patent us beneficiation of phosphate Patent US Method for beneficiation of . Get Price And Support Online
how to produce dicalcium phosphate from hydrochloric acid. Acid Treatment Patents and Patent Applications (Class 423 Abstract: 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.
Dec 08, 2012· Patent US – Production of dicalcium phosphate or . 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 . »More detailed
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