Leave Message
For More Information

patent of dicalcium phosphate from rock phosphate search results:

US Patent for Preparation of dicalcium phosphate from ...

Bridger (U.S. Letters Patent No. 3,011,888) shows that dicalcium phosphate may be prepared, without the use of excess acid, by treating phosphate rock with water and phosphoric acid, curing the product (principally monocalcium phosphate and phosphate rock) at room temperature for several days, mixing it with more water and hydrolyzing the ...

More

Radioactivity Contents in Dicalcium Phosphate and the ...

Potentially harmful phosphate-based products derived from the wet acid digestion of phosphate rock represent one of the most serious problems facing the phosphate industry. This is particularly true for dicalcium phosphate (DCP), a food additive produced from either sulphuric acid or hydrochloric ac

More

Preparation of dicalcium phosphate from phosphate rock by ...

Bridger (U.S. Letters Patent No. 3,011,888) shows that dicalcium phosphate may be prepared, without the use of excess acid, by treating phosphate rock with water and phosphoric acid, curing the product (principally monocalcium phosphate and phosphate rock) at room temperature for several days, mixing it with more water and hydrolyzing the ...

More

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

Dicalcium phosphate shows the most commonly used production method is known as the “wet acid” route in which rock phosphate is reacted with sulphuric acid to produce phosphoric acid. After concentration and purification to reduce the level of undesirable elements, this phosphoric acid is

More

Indian Patents. 202038:A PROCESS FOR THE MANUFACTURE OF ...

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%.

More

Di-calcium phosphate by direct acidulation of phosphate rock

phate and undecomposed phosphate rock is obtained instead of di-calcium phosphate. The purpose of this research was to find a method of produc­ ing di-calcium phosphate. Reaction 2 is very difficult to effect. Phosphate rock so treated always contains a high percentage of undecomposed rock, even after a relatively long time.

More

Production of defluorinated dicalcium phosphate from ...

A new process to produce defluorinated dicalcium phosphate (DCP) using phosphate rock concentrate has been developed. This new process has as main characteristic the low concentration of P 2 O 5 in the liquid phase. The process comprises three main steps: solubilization of the phosphate rock concentrate with sulfuric acid, defluorination of the phosphoric acid solution with potassium sulfate ...

More

(PDF) The hydrochloric acid route for phosphate rock

When phosphate rock is leached with hydrochloric acid, radium can be removed by co-precipitation with Ba0.4Ca0.6SO4 and uranium by extraction with a 5% solution of tributyl phosphate in hexane or ...

More

phosphate and goldmining introduction - lettierapercavalli

Phosphate Phosphate is the main ingredient in fertilizers and as such is an essential material for the economy and health of the world. Although Saudi Arabia has no production at the present, it has a vast phosphate resource in the Sirhan-Turayf region in the northern part of the Kingdom and is potentially a major supplier to the world market.

More

US Patent for Process for the production of high purity ...

Oct 16, 2008  1. Attack of Phosphate Rock with Diluted HCl. Step 1 of the process, illustrated in FIG. 1, consists of an attack of phosphate rock with diluted HCl. For instance, phosphate rock with a P 2 O 5 content typically between 20 and 35% P 2 O 5 is introduced into a reactor (input I) together with an aqueous solution of HCl, diluted between 3 and 10% ...

More

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 ...

More

US Patent for Preparation of monocalcium phosphate and ...

Two additional patents of pertinence to processes of this type are U.S. Pat. Nos. 2,567,227 and 2,728,635 to Miller which disclose the acidulation of phosphate rock with phosphoric acid to form monocalcium phosphate, cooling to crystallize the monocalcium phosphate and then converting it to dicalcium phosphate by disproportionation.

More

Production of defluorinated dicalcium phosphate from ...

A new process to produce defluorinated dicalcium phosphate (DCP) using phosphate rock concentrate has been developed. This new process has as main characteristic the low concentration of P 2 O 5 in the liquid phase. The process comprises three main steps: solubilization of the phosphate rock concentrate with sulfuric acid, defluorination of the phosphoric acid solution with potassium sulfate ...

More

Process For The Preparation Of Dicalcium Phosphate

Feb 19, 2020  dicalcium phosphate patents. Patent Technology Preparation of dicalcium phosphate from phosphate rock by the use of sulfur dioxide water and carbonyl compounds Environmental and Economic Assessment of Feed Phosphate Technology Modernization Evaluation of nutrient release rates from phosphate fertilisers in a laboratory leaching technique .

More

patents on phosphate rock benefication

Aug 01, 2021  Bridger (U.S. Letters Patent No. 3,011,888) shows that dicalcium phosphate may be prepared, without the use of excess acid, by treating phosphate rock with water and phosphoric acid, curing the product (principally monocalcium phosphate and phosphate rock) at room temperature for several days, mixing it with more water and hydrolyzing the ...

More

Dicalcium Phosphate Process Flow Diagram - Lane Yoga

Rock phosphate ball mill flow chart amawheelies florida phosphate rock beneficiation process with flowdiagram arrmaz products l p winter haven fl 5858214 phosphate beneficiation process using polymers as slime flocculants 4177243 process for production of phosphate rock slurries having reduced 4 is a conceptual flow chart of the.Read the rest.

More

Replacement of dicalcium phosphate by rock phosphate in ...

Replacement of dicalcium phosphate by rock phosphate did not affect (P>0.05) ruminal ammonia concentration that was also quadratic; however, regression equation had a low determination coefficient (r 2) showing that the curve had a variation in their data. Ruminal ammonia concentration also showed a quadratic response in relation to time.

More

dicalcium phosphate manufacturing process

US1235025A - Process of making dicalcium phosphate. - Google Patents Process of making dicalcium phosphate. Download PDF Info Publication number US1235025A dicalcium phosphate mixture Prior art date 1916-05-01 Legal status (The legal status is an assumption and is . Dicalcium-Phosphates- Process, Technology, Applications

More

(PDF) The hydrochloric acid route for phosphate rock

When phosphate rock is leached with hydrochloric acid, radium can be removed by co-precipitation with Ba0.4Ca0.6SO4 and uranium by extraction with a 5% solution of tributyl phosphate in hexane or ...

More

Production of dicalcium phosphate by treatment of ...

This paper presents results laboratory experiments to test a new process for manufacture of dicalcium phosphate. The process is based on the nitric acidulation of phosphate rock concentrate, followed by neutralization of the extract liquor with calcium carbonate. The precipitated dicalcium phosphate is then separated from calcium nitrate solution by filtration. The dicalcium phosphate thus ...

More

Process for compacting a calcium phosphate composition ...

BACKGROUND OF THE INVENTION. This invention relates to compacting fine particles of calcium phosphate. More particularly the invention relates to compacting fine particles of calcium phosphate material, e.g. dicalcium phosphate dihydrate, tricalcium phosphate, monocalcium phosphate, and calcium pyrophosphate to form ribbons or sheets as a preparatory step to utilizing the compacted

More

Reacting An Acid And Phosphate Rock Patents and Patent ...

Oct 16, 2008  Abstract: A process for producing high-analysis dicalcium phosphate containing phosphatic fertilizers and by-product calcium nitrate. It comprises reacting phosphate rock with nitric acid, followed by pyrolysis of the resulting acidulate to effect liberation of approximately one-half of the initially consumed nitric acid.

More

dicalcium phosphate manufacturing process

US1235025A - Process of making dicalcium phosphate. - Google Patents Process of making dicalcium phosphate. Download PDF Info Publication number US1235025A dicalcium phosphate mixture Prior art date 1916-05-01 Legal status (The legal status is an assumption and is . Dicalcium-Phosphates- Process, Technology, Applications

More

(PDF) United States Patent [191 Anderson Medina ...

For the acidulation of phosphate rock (28% for the manufacture of dicalcium phosphate (hereinaf P205), the concentration of aqueous hydrochloric acid . ter referred to as DCP) and for the manufacture of suitable for the process is around 22% (by weight), pure phosphoric acid.

More

US Patent for Process for the production of high purity ...

Oct 16, 2008  1. Attack of Phosphate Rock with Diluted HCl. Step 1 of the process, illustrated in FIG. 1, consists of an attack of phosphate rock with diluted HCl. For instance, phosphate rock with a P 2 O 5 content typically between 20 and 35% P 2 O 5 is introduced into a reactor (input I) together with an aqueous solution of HCl, diluted between 3 and 10% ...

More

Product Information DICALCIUM PHOSPHATE, ANHYDROUS

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.

More

Process For The Preparation Of Dicalcium Phosphate

Feb 19, 2020  dicalcium phosphate patents. Patent Technology Preparation of dicalcium phosphate from phosphate rock by the use of sulfur dioxide water and carbonyl compounds Environmental and Economic Assessment of Feed Phosphate Technology Modernization Evaluation of nutrient release rates from phosphate fertilisers in a laboratory leaching technique .

More

Availability of phosphorus in phosphate rock to plant ...

Sep 10, 2018  tion making the phosphorus in phosphate rock available to plants was largely à reaction between carbonic acid and the tricalcium phosphate in the phosphate rock to form dicalcium phosphate and calcium bicarbonate. If none of the products of the reaction were removed from solution, the reaction soon reached a state of equilibrium.

More

Method of granulating the fine phosphate rock

1. Method of granulating the fine phosphate rock in the presence of a binder additive, characterized in that, as a binder additive, a mixture of the pulp of phosphate and the amount of salt oxides in the ratio of monocalcium phosphate : the sum of the single salts oxides equal to 1 : (0.05 to 0.45 in), and the mixture was added in phosphate raw ...

More

Rock Based Dicalcium Phosphate Manufacturer, Supplier ...

As a Rock Phosphate Wholesale Manufacturer, we feel that the production process makes a big difference. The most common form of manufacturing is called the ‘wet acid’ method. In this method, the rock phosphate is made to react with concentrated Sulphuric Acid. This releases phosphoric acid, which is further processed and then cleansed.

More

Dicalcium Phosphate Process Flow Diagram - Lane Yoga

Rock phosphate ball mill flow chart amawheelies florida phosphate rock beneficiation process with flowdiagram arrmaz products l p winter haven fl 5858214 phosphate beneficiation process using polymers as slime flocculants 4177243 process for production of phosphate rock slurries having reduced 4 is a conceptual flow chart of the.Read the rest.

More

Dicalcium Phosphate Rock Base Feed Grade Suppliers in ...

Rock Base Di Calcium Phosphate (Animal Feed Grade) Our product lineup includes an essential dietary supplement for animal feeds, that is, Rock Based Di-Calcium Phosphate. The product comes in either white crystal powder form or granular form and is odorless and tasteless. It is produced by treating rock phosphate with diluted sulphuric acid ...

More

Dicalcium phosphate process consultants in india ...

Chinese deginer for di calcium phosphate process . dicalcium phosphate chemical process consultants in india ARMACOCPS earlier Armaco Chemical Process Systems is an international process design and engineering firm providing specialized engineering services to industries related to Phosphates, Oleochemicals, Soaps Detergents and Specialty chemicals Patent US7101522

More