Sulfuric Acid → Phosphoric Acid

HRID 2371355Notes

Reaction equation

HRID 2371355 reaction equation
[P:1]([OH:5])([O-:4])([O-:3])=[O:2].[Ca+2:6].[S:7](=[O:11])(=[O:10])([OH:9])[OH:8]>>[S:7]([O-:11])([O-:10])(=[O:9])=[O:8].[Ca+2:6].[P:1](=[O:2])([OH:5])([OH:4])[OH:3]

Participants

4

Reactant 2

HCID 1118Sulfuric AcidHCID 24441Calcium hydrogen phosphate

Product 2

HCID 1004Phosphoric AcidHCID 24497Calcium Sulfate

Procedure

Means are also provided for reacting the monocalcium phosphate in the liquor with sulfuric acid to produce calcium sulfate crystals in a phosphoric acid solution. This can be conveniently carried out in a crystallizer. Finally, additional separating means are provided for separating the calcium sulfate crystals from the phosphoric acid solution.

Workup

  1. customMeans are also provided

Sources & evidence

ORD record
ord-5804cf8e3a414c769aa9278dd1c3d3c6
Source dataset
uspto-grants-1992_03
Patent number
US05093088

Reaction notes

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