Sulfate Ion → Chloride

HRID 1022277Notes

Reaction equation

HRID 1022277 reaction equation
[Cl-:1].[K+:2].[Cl-].[Na+:4].[S:5]([O-:9])([O-:8])(=[O:7])=[O:6]>>[Cl-:1].[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[K+:2].[K+:2].[S:5]([O-:9])([O-:8])(=[O:7])=[O:6].[Na+:4].[Na+:4]

Participants

6

Reactant 3

HCID 1117Sulfate IonHCID 4873Potassium ChlorideHCID 5234Sodium Chloride

Product 3

HCID 312ChlorideHCID 24436Sodium SulfateHCID 24507Potassium Sulfate

Procedure

Reference may be made to U.S. Pat. No. 4,504,458, Mar. 12, 1985 by Knudsen which discloses a process for converting gypsum into potassium sulphate or sodium sulphate by subjecting aqueous slurry of gypsum with anion exchanger (in chloride form) under acidic conditions which resulted into calcium chloride solution and resin in sulfate form. The anion exchange resin is then contacted with potassium chloride or sodium chloride solution thereby regenerating the sulphate loaded resin to form chloride loaded resin and potassium sulfate or sodium sulfate solution.

Sources & evidence

ORD record
ord-ca91fa89a36547459493309438cd1f49
Source dataset
uspto-grants-2014_05
Patent number
US08721999B2

Reaction notes

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