Sodium Chloride → Sodium Carbonate Decahydrate

HRID 463483Notes

Reaction equation

[C:1](=[O:4])([O-:3])[O-:2].[Na+:5].[Na+].[O-:7]S([O-])(=O)=O.[Na+].[Na+].[Na+].[Cl-]>>[OH2:2].[OH2:7].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[C:1](=[O:2])([O-:4])[O-:3].[Na+:5].[Na+:5]

Participants

Reactant 3

HCID 5234Sodium Chloride

HCID 10340Sodium Carbonate2×

HCID 24436Sodium Sulfate

Product 1

HCID 151402Sodium Carbonate Decahydrate

Procedure

In this comparative example, the sodium carbonate solution designated as stream 3 in Example 1, containing 27.2 wt % Na2CO3, 2.6 wt % Na2SO4 and 2.6 wt % NaCl, is subjected to a cooling crystallization at 20° C. to form sodium carbonate decahydrate. In the cooling crystallization, 376 kg/hr of feed solution are introduced to the crystallizer to yield centrifuged, damp sodium carbonate decahydrate at a rate of 250 kg/hr, of which about 5% is mother liquor. The mother liquor composition is about 13.1 wt % Na2CO3, 9 wt % Na2SO4 and 9 wt % NaCl.

Workup

customis subjected to a cooling crystallization at 20° C.

Sources & evidence

ORD record: ord-c9a567f054394a8e8cf48745887b78e3
Source dataset: uspto-grants-1985_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04519806

Reaction notes

Loading…