Bicarbonate Ion → Sodium Oxalate

HRID 1034133

Reaction equation

HRID 1034133 reaction equation
[C:1](=[O:4])([O-:3])[O-:2].[Na+:5].[Na+].[C:7](=O)([OH:9])[O-:8].[OH-].[Na+]>>[OH-:2].[Na+:5].[C:7]([O-:9])(=[O:8])[C:1]([O-:3])=[O:4].[Na+:5].[Na+:5]

Participants

5

Reactant 3

HCID 769Bicarbonate IonHCID 10340Sodium CarbonateHCID 14798Sodium Hydroxide

Product 2

HCID 6125Sodium OxalateHCID 14798Sodium Hydroxide

Procedure

Causticisation with lime slurry then converts the sodium carbonate and bicarbonate to sodium hydroxide. The recovery of sodium hydroxide from the effluent results in soda savings of approximately 0.6 tonne/tonne of sodium oxalate. It is estimated that this will result in savings of over 5600 tonnes per annum at the Worsley Alumina refinery alone.

Sources & evidence

ORD record
ord-b93e884a002e4ce4ab63dab5c605ca80
Source dataset
uspto-grants-1994_05
Patent number
US05314806

Linked notes

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