Phosphoric Acid → Phosphonato phosphate;titanium(4+)

HRID 3057

Reaction equation

HRID 3057 reaction equation
[O-2].[O-2].[Ti+4:3].P(=O)(O)(O)O.[O:9]=[P:10]12[O:21]P3([O:22][P:12]([O:14]P(O3)([O:17]1)=O)(=[O:13])[O:11]2)=O>>[O-:17][P:10]([O:11][P:12]([O-:22])([O-:14])=[O:13])(=[O:9])[O-:21].[Ti+4:3]

Participants

4

Reactant 3

HCID 1004Phosphoric AcidHCID 14812Phosphorus oxide (P4O10)HCID 162651Titanium oxide (Ti3O)2×

Product 1

HCID 20283883Phosphonato phosphate;titanium(4+)Yield 90%

Procedure

thermally reacting titanium dioxide and phosphoric acid at a temperature of about 400° C. to about 500° C. in a reaction mixture having a phosphorus pentoxide to titanium dioxide mole ratio of about 1.20 to about 1.25 to form a fine titanium pyrophosphate powder with greater than 90% of said fine titanium pyrophosphate powder having a particle size less than 1 micron in diameter; and

Workup

  1. customat a temperature of about 400° C. to about 500° C.

Sources & evidence

ORD record
ord-36aa7f1e188145b59bcac8eea2adfe61
Source dataset
uspto-grants-1998_03
Patent number
US05733519

Linked notes

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