Phosphoric Acid → Sulfate Ion

HRID 1583734Notes

Reaction equation

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

Participants

Reactant 2

HCID 1004Phosphoric Acid

HCID 24497Calcium Sulfate

Product 2

HCID 1117Sulfate Ion

HCID 24456Tricalcium Phosphate

Procedure

In one embodiment, the impure aqueous phosphoric acid is a component of a solid calcium sulphate-containing slurry produced by the action of sulphate ion on a solution of a calcium phosphate-containing mineral in aqueous phosphoric acid. In another embodiment, said impure aqueous phosphoric acid can be the product of separation of solid calcium sulphate from a slurry comprising impure aqueous phosphoric acid and solid calcium sulphate.

Workup

additioncontaining slurry

Sources & evidence

ORD record: ord-893cb46ad5cb438094f35323fc9d7ab1
Source dataset: uspto-grants-1985_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04554144

Reaction notes

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