Sodium aluminate → Aluminum Sulfate

HRID 2352475Notes

Reaction equation

HRID 2352475 reaction equation
O=[Al-:2]=O.[Na+].[O-:5][S:6]([O-:9])(=[O:8])=[O:7].[O-:10][S:11]([O-:14])(=[O:13])=[O:12].[Al+3:15].[K+]>O>[S:6]([O-:9])([O-:8])(=[O:7])=[O:5].[Al+3:2].[S:11]([O-:14])([O-:13])(=[O:12])=[O:10].[S:6]([O-:9])([O-:8])(=[O:7])=[O:5].[Al+3:15]

Participants

4

Reactant 2

HCID 14766Sodium aluminateHCID 24856Potassium Alum2×

Product 1

HCID 24850Aluminum Sulfate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
58 °C

Procedure

To 459 parts water, were added 140 parts sodium aluminate (24.0% Al2O3). Next 255 parts liquid Alum were added under high mixing at 20° C. over 1/2 hour. The pH was 5.6 and after 3/4 hour of mixing 445 parts of liquid Alum were added, and the temperature was kept at 20° C. for an additional 11/2 hour. It was then increased to 58° C. over 11/4 hour and held for 1/2 hour at which time the mixture became totally clear. The product was cooled and showed a basicity of 52.7% and 7.3% Al2O3.

Workup

  1. additionunder high mixing at 20° C. over 1/2 hour
  2. additionwere added
  3. customwas kept at 20° C. for an additional 11
  4. custom2 hour
  5. temperatureThe product was cooled

Sources & evidence

ORD record
ord-52142874ea174899a62927c92c137009
Source dataset
uspto-grants-1989_10
Patent number
US04877597

Reaction notes

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