Neodymium → Neodymium sesquicarbonate

HRID 2405537Notes

Reaction equation

HRID 2405537 reaction equation
[C:1](=[O:4])([OH:3])[O-:2].[Mg+2].[C:6](=[O:9])([OH:8])[O-:7].[Nd:10]>C([O-])(=O)C.[Nd+3].C([O-])(=O)C.C([O-])(=O)C>[C:1](=[O:2])([O-:4])[O-:3].[Nd+3:10].[C:6](=[O:7])([O-:9])[O-:8].[C:1](=[O:2])([O-:4])[O-:3].[Nd+3:10]

Participants

4

Reactant 2

HCID 23934NeodymiumHCID 102204Magnesium bicarbonate

Product 1

HCID 167103Neodymium sesquicarbonate

Reagents, catalysts & solvents 1

HCID 22567Neodymium triacetateSolvent

Procedure

Adding 9 m3 of magnesium bicarbonate solution (MgO: 15 g/L, Fe: 1.1 ppm, Al: 0.5 ppm, saturated with CO2) into a reactor containing 10 m3 of neodymium acetate solution (0.2 mol/L) to react for 2 hours at 25° C., and controlling the pH value of mother liquor at 5.5, neodymium ions are precipitated and neodymium carbonate is obtained. Subsequently, the neodymium carbonate is filtered, washed, dried and finally calcined at 700° C. for 2 hours to produce neodymium oxide.

Workup

  1. customto react for 2 hours at 25° C.
  2. customare precipitated

Sources & evidence

ORD record
ord-62ecbe2136254af4999bf3d587ec746f
Source dataset
uspto-grants-2014_08
Patent number
US08808660B2

Reaction notes

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