Hydrochloric Acid → Phosphoric acid, titanium(4+) salt (4:3)

HRID 328660

Reaction equation

HRID 328660 reaction equation
Cl.[Ti:2](Cl)(Cl)(Cl)Cl.[P:7]([O-:11])([O-:10])([OH:9])=[O:8].[NH4+].[NH4+]>O>[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[Ti+4:2].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[P:7]([O-:11])([O-:10])([O-:9])=[O:8].[Ti+4:2].[Ti+4:2]

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 24193Titanium TetrachlorideHCID 24540Diammonium hydrogen phosphate

Product 1

HCID 159761Phosphoric acid, titanium(4+) salt (4:3)

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

Titanium phosphate was prepared by the following procedure. Hydrochloric acid (500 g) was added to 5 liters of water, and 500 g of titanium tetrachloride was added dropwise at room temperature. After allowing the mixture to stand for 3 hours, a 10% aqueous solution containing 356 g of diammonium hydrogen phosphate was gradually added dropwise to the mixture with thorough stirring. After the formation of a precipitate, the system was allowed to stand at 70° C. for 6 hours. The precipitate was separated by filtration, and washed with water by means of a centrifugal separator until there was no chlorine ion in the filtrate. It was dried at 120° C., and then calcined at 550° C. for 3 hours. The resulting powder had the composition 2TiO2.P2O5 and a surface area, measured by the BET method, of 72 m2 /g.

Workup

  1. additionwas added dropwise at room temperature
  2. additionwas gradually added dropwise to the mixture with thorough stirring
  3. waitto stand at 70° C. for 6 hours
  4. customThe precipitate was separated by filtration
  5. washwashed with water by means of a centrifugal separator until there
  6. customIt was dried at 120° C.
  7. waitcalcined at 550° C. for 3 hours

Sources & evidence

ORD record
ord-e9461f8b54bc40f79e6ec8feba94d9ad
Source dataset
uspto-grants-1977_04
Patent number
US04018706

Linked notes

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