Ammonia → Zirconium phosphate

HRID 1756482Notes

Reaction equation

HRID 1756482 reaction equation
C(O)(=O)C(O)=O.O(Cl)Cl.[Zr:10].[Cl-].[NH4+].[P:13](=[O:17])([OH:16])([OH:15])[OH:14].N>O>[P:13]([O-:17])([O-:16])([O-:15])=[O:14].[Zr+4:10].[P:13]([O-:17])([O-:16])([O-:15])=[O:14].[P:13]([O-:17])([O-:16])([O-:15])=[O:14].[P:13]([O-:17])([O-:16])([O-:15])=[O:14].[Zr+4:10].[Zr+4:10]

Participants

7

Reactant 5

HCID 222AmmoniaHCID 971Oxalic AcidHCID 1004Phosphoric AcidHCID 25517Ammonium ChlorideHCID 71304769Chloro hypochlorite;zirconium

Product 1

HCID 160986Zirconium phosphate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Conditions

Temperature
97 °C

Procedure

80 g of 6% aqueous oxalic acid solution was added to an aqueous solution prepared by dissolving 116.5 g of zirconium oxychloride (ZrOCl2.8H2O) and 2.9 g of ammonium chloride in 183 g of pure water under stirring, and 19 g of 85% phosphoric acid was further added. The reaction mixture was adjusted to pH 3.5 with an aqueous ammonia solution and heated and refluxed at 97° C. for 78 hours. Then, the precipitate was subjected to filtration and washing with water until the electric conductivity EC of the filtrate reached 100 μS/cm or less. The residue was dried at 110° C. for 12 hours and then disintegrated to a given particle size by a disintegrator to obtain zirconium phosphate [(NH4)Zr2 (PO4)3 ] having a network structure.

Workup

  1. customprepared
  2. temperatureheated
  3. filtrationThen, the precipitate was subjected to filtration
  4. washwashing with water until the electric conductivity EC of the filtrate
  5. customThe residue was dried at 110° C. for 12 hours

Sources & evidence

ORD record
ord-764d4abcee7d4fb19d98cd1c44160b32
Source dataset
uspto-grants-1995_08
Patent number
US05441717

Reaction notes

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