Carbon Dioxide → Sodium Carbonate Decahydrate

Participants

Reaction Steps

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.

Provenance & Evidence