Chloride → Sulfate Ion

HRID 2058154Notes

Reaction equation

HRID 2058154 reaction equation
[Cl-].[K+:2].[S:3]([O-:7])([O-:6])(=[O:5])=[O:4].[O-:8][S:9]([O-:12])(=[O:11])=[O:10].[Na+].[Na+].[Cl-]>>[S:3]([O-:7])([O-:6])(=[O:5])=[O:4].[K+:2].[K+:2].[S:9]([O-:12])([O-:11])(=[O:10])=[O:8]

Participants

6

Reactant 4

HCID 312ChlorideHCID 1117Sulfate Ion2×HCID 4873Potassium Chloride2×HCID 24436Sodium Sulfate3×

Product 2

HCID 1117Sulfate IonHCID 24507Potassium Sulfate

Procedure

Used as the starting sulfate-containing material to produce potassium sulfate was mirabilite (Na2SO4.10H2O). To 1.883 kg of mirabilite were added 0.100 kg of potassium chloride, 1.918 kg of a concentrated sulfate solution of the following composition, in % by weight: Na2SO4 --2to 3; KCl--24 to 25; NaCl--9 to 10; H2O--the balance, 3.440 kg of a sulfate suspension containing 0.598 kg of mirabilite and 2.858 kg of a concentrated chloride solution of the following composition, in % by weight: Na2SO4 --4; KCl--15 to 16; NaCl--17 to 18; H2O--the balance. Obtained as a result were 1.013 kg of glaserite and 6.344 kg of a glaserite solution of the following composition, in % by weight: Na2SO4 --5 to 6; KCl--7 to 8; NaCl--17; H2O-- the balance. The glaserite was treated with a potassium chloride solution (0.710 kg of potassium chloride and 1.815 kg of water) at a temperature of 30° C. for 45 minutes to obtain 1 kg of potassium sulfate and 2.538 kg of a sulfate solution of the following composition, in % by weight: Na2SO4 --2; KCl--18 to 20; NaCl--6 to 7; H2O--the balance. The sulfate solution was evaporated, the amount of evaporated water being 0.620 kg. The resulting concentrated solution was returned to the first stage of conversion.

Workup

  1. customObtained as a result

Sources & evidence

ORD record
ord-12eb58974a23424c9f892da8f4d8d95a
Source dataset
uspto-grants-1980_07
Patent number
US04215100

Reaction notes

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