Hydrogen Peroxide → Zinc Phosphate

HRID 1706351Notes

Reaction equation

HRID 1706351 reaction equation
[O-2].[Zn+2:2].[Zn].OO.[P:6](=[O:10])([OH:9])([OH:8])[OH:7]>O>[P:6]([O-:10])([O-:9])([O-:8])=[O:7].[Zn+2:2].[P:6]([O-:10])([O-:9])([O-:8])=[O:7].[Zn+2:2].[Zn+2:2]

Participants

6

Reactant 4

HCID 784Hydrogen PeroxideHCID 1004Phosphoric Acid2×HCID 23994ZincHCID 3007857Zinc Oxide

Product 1

HCID 24519Zinc PhosphateYield 109.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent2×

Procedure

Zinc-containing wastes resulting from the production of sodium formaldehydesulphoxylate (rongalite) in the amount of 440 g containing 405 g of zinc oxide and 21 g of metallic zinc are ground in a ball mill by the wet grinding method in the presence of 500 g of water, whereafter additional 1,000 g of water are added thereto along with a 30% aqueous solution of hydrogen peroxide in the amount of 71 g. Under continuous stirring the suspension is heated to a temperature of 70° C., whereafter 342 g of phosphoric acid as calculated for 100% H3PO4 are added thereto. After 30 minutes the suspension is filtered, the residue is washed and dried. There are obtained 700 g of zinc phosphate (the yield is equal to 98%).

Workup

  1. additionare added
  2. filtrationAfter 30 minutes the suspension is filtered
  3. washthe residue is washed
  4. customdried

Sources & evidence

ORD record
ord-b05e8256db764541b5eefb6cd9ccb394
Source dataset
uspto-grants-1980_06
Patent number
US04207301

Reaction notes

Loading…