Ammonium bisulfate → Sulfuric Acid

HRID 1867194Notes

Reaction equation

HRID 1867194 reaction equation
[S:1]([O:5]S([O-])(=O)=O)([O-:4])(=[O:3])=[O:2].[NH4+:10].[NH4+].[S:12](=[O:16])(=[O:15])([OH:14])[O-:13].[NH4+].S(OS([O-])(=O)=O)([O-])(=O)=O.S(=O)(=O)(O)[O-]>S([O-])([O-])(=O)=O.[NH4+].[NH4+].O>[S:1]([O-:5])([O-:4])(=[O:3])=[O:2].[NH4+:10].[NH4+:10].[S:12](=[O:14])(=[O:13])([OH:16])[OH:15]

Participants

8

Reactant 4

HCID 24655Ammonium bisulfateHCID 61778Sulfate, hydrogenHCID 177717DisulfateHCID 11960345ammonium pyrosulfate

Product 2

HCID 1118Sulfuric AcidHCID 6097028Ammonium Sulfate

Reagents, catalysts & solvents 2

HCID 962WaterSolvent2×HCID 6097028Ammonium SulfateSolvent3×

Procedure

At the conclusion of the thermal decomposition reaction, solids or molten liquid comprising the decomposition product are removed from the reactor or allowed to cool in the reactor. In either case, water is added to the decomposition product to produce a second stream. With ammonium sulfate as the primary compound in the ammonium sulfate (first) stream, the addition of water converts preferably all or most of the ammonium pyrosulfate which may be present to ammonium bisulfate. With other sulfate salts present in the ammonium sulfate stream, the corresponding pyrosulfate salts, if present, are converted into bisulfate salts. Without wishing to be bound by theory, when water is added to the decomposition product, salts may be formed in equilibrium with ammonium sulfate and sulfuric acid.

Workup

  1. customAt the conclusion of the thermal decomposition reaction, solids or molten liquid
  2. customare removed from the reactor
  3. temperatureto cool in the reactor
  4. additionIn either case, water is added to the decomposition product
  5. customto produce a second stream
  6. additionis added to the decomposition product, salts

Sources & evidence

ORD record
ord-0ba94b4fd1094b1783da523621a7df0d
Source dataset
uspto-grants-2009_12
Patent number
US07632479B2

Reaction notes

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