Carbon Dioxide → Zirconium phosphate

HRID 2194322Notes

Reaction equation

HRID 2194322 reaction equation
C([O-])(O)=O.C([O-])(O)=O.C([O-])(O)=O.C([O-])(O)=O.[Zr+4:17].C(=O)=O.[P:21](=[O:25])([OH:24])([OH:23])[OH:22].[OH-].[K+]>O.[Hf]>[P:21]([O-:25])([O-:24])([O-:23])=[O:22].[Zr+4:17].[P:21]([O-:25])([O-:24])([O-:23])=[O:22].[P:21]([O-:25])([O-:24])([O-:23])=[O:22].[P:21]([O-:25])([O-:24])([O-:23])=[O:22].[Zr+4:17].[Zr+4:17]

Participants

7

Reactant 4

HCID 280Carbon DioxideHCID 1004Phosphoric AcidHCID 14797Potassium HydroxideHCID 22645944Zirconium, (mu-(carbonato(2-)-kappaO:kappaO'))dihydroxydioxodi-

Product 1

HCID 160986Zirconium phosphate

Reagents, catalysts & solvents 2

HCID 23986HafniumCatalystHCID 962WaterSolvent

Procedure

0.67 moles of zirconium basic carbonate (3ZrO2.CO2.xH2O) containing 2.1% hafnium composed of particles wherein a median particle size thereof was 18 μm and particles with a particle size of 0.8 μm to 50 μm were present at 100% on a volume basis of the total particles were suspended in 300 ml of deionized water, and 0.27 moles of phosphoric acid were added thereto with stirring. A 20% aqueous solution containing 0.07 moles of potassium hydroxide was further added thereto, followed by heating and aging for 2 hours at 98° C. Then, the resulting solid was sufficiently washed with deionized water in a ceramic filter washing machine until an electric conductivity of the filtrate reached 300 μS or less and the solid was taken out and dried at 120° C. for 3 hours.

Workup

  1. additionwas further added
  2. temperatureby heating
  3. washThen, the resulting solid was sufficiently washed with deionized water in
  4. filtrationa ceramic filter
  5. washwashing machine until an electric conductivity of the filtrate
  6. customdried at 120° C. for 3 hours

Sources & evidence

ORD record
ord-a366c5bf1e81464bb1fa84ae3a216d56
Source dataset
uspto-grants-2012_12
Patent number
US08333833B2

Reaction notes

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