Carbon Dioxide → Sodium Carbonate Decahydrate
Reaction equation
S([O-])([O-])=[O:2].[Na+:5].[Na+].C(=O)=[O:8].[OH2:10].[C:11](=[O:14])([O-:13])[O-:12].[Na+].[Na+].C(=O)(O)[O-:18].[Na+].C(=O)([O-])[O-:23].[Na+].[Na+]>>[OH2:2].[OH2:8].[OH2:12].[OH2:18].[OH2:23].[OH2:10].[OH2:2].[OH2:2].[OH2:2].[OH2:2].[C:11](=[O:12])([O-:14])[O-:13].[Na+:5].[Na+:5]Participants
Procedure
Forming the crystals may comprise performing at least one of the following steps: feeding at least a portion of the purified solution to a sodium carbonate monohydrate crystallizer to form crystals comprising sodium carbonate; or feeding at least a portion of the purified solution and sulfur dioxide to a sodium sulfite reactor and then to a sodium sulfite crystallizer to form crystals comprising sodium sulfite; or passing carbon dioxide and at least a portion of the purified solution and/or at least a portion of a purge liquor exiting a sodium carbonate monohydrate crystallizer to a sodium bicarbonate reactor under conditions effective to form crystals comprising sodium bicarbonate; or combinations thereof. Alternatively or additionally, the crystals formation may comprise feeding at least a portion of the purified solution to a sodium carbonate monohydrate crystallizer to form crystals comprising sodium carbonate and a purge liquor stream, the purge liquor stream being used under crystallization conditions to form a sodium carbonate decahydrate solid contaminated with water-soluble impurities, a portion of the solid being reclaimed, and wherein the waste comprises or consists of the reclaimed solid.
Workup
- customto form crystals
- customto form crystals
- customa purge liquor stream, the purge liquor stream being used under crystallization conditions
Sources & evidence
- ORD record
- ord-2121f334650d4115b559e674d14716c5
- Source dataset
- uspto-grants-2012_12
- Patent number
- US08337571B2
Reaction notes
Loading…