Phosphoric Acid → Tricalcium Phosphate

HRID 432530Notes

Reaction equation

HRID 432530 reaction equation
C(=O)([O-])[O-].[Ca+2:5].[P:6](=[O:10])([OH:9])([OH:8])[OH:7]>O>[P:6]([O-:10])([O-:9])([O-:8])=[O:7].[Ca+2:5].[P:6]([O-:10])([O-:9])([O-:8])=[O:7].[Ca+2:5].[Ca+2:5]

Participants

4

Reactant 2

HCID 1004Phosphoric AcidHCID 10112Calcium Carbonate

Product 1

HCID 24456Tricalcium Phosphate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

For example, an aqueous-suspension of calcium carbonate as a support and a dilute aqueous solution of phosphoric acid are mixed in water so that an atomic ratio of Ca/P becomes not more than 33.3 under the following mixing conditions. The mixture is then aged under the following conditions to obtain an aqueous slurry of a calcium phosphate compound, followed by dehydration or without dehydration, drying under drying conditions at not higher than 700° C., and crushing.

Workup

  1. additionfollowing mixing conditions

Sources & evidence

ORD record
ord-d458dd0ef7e14bb391e8403165673470
Source dataset
uspto-grants-2003_12
Patent number
US06663948B1

Reaction notes

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