Sodium aluminate → Aluminum Sulfate

HRID 2352474Notes

Reaction equation

HRID 2352474 reaction equation
[O-:1][S:2]([O-:5])(=[O:4])=[O:3].[O-:6][S:7]([O-:10])(=[O:9])=[O:8].[Al+3:11].[K+].O=[Al-:14]=O.[Na+]>O>[S:2]([O-:5])([O-:4])(=[O:3])=[O:1].[Al+3:14].[S:7]([O-:10])([O-:9])(=[O:8])=[O:6].[S:2]([O-:5])([O-:4])(=[O:3])=[O:1].[Al+3:11]

Participants

4

Reactant 2

HCID 14766Sodium aluminateHCID 24856Potassium Alum2×

Product 1

HCID 24850Aluminum Sulfate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

284 parts water were added to 244 parts of liquid Alum and cooled to 15° C. liquid sodium aluminate (24% al2O3) 135 parts diluted with 143 parts water was then added over one half hour to a pH of 6.1, the gel was mixed for one half hour under high shear. Alum liquid 456 parts, was then added and the temperature slowly raised over 11/2 hour to 58° C. and held at 58° C. for an additional 11/2 hour. Upon clearing the product was cooled and contained Al2O3 7.0% (partial increase due to evaporation loss) and a basicity of 51.5%.

Workup

  1. additionwas then added over one half hour to a pH of 6.1
  2. additionthe gel was mixed for one half hour under high shear
  3. temperaturethe temperature slowly raised over 11/2 hour to 58° C.
  4. customheld at 58° C. for an additional 11
  5. custom2 hour
  6. temperaturewas cooled

Sources & evidence

ORD record
ord-30cb0abf64d3439d84f3e5e500dc780e
Source dataset
uspto-grants-1989_10
Patent number
US04877597

Reaction notes

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