Sodium Chloride → Carbon Dioxide

Of course, the crude hydrated sodium carbonate 18 produced by the carbonation reactor is typically subjected to further purification processing in order to meet product specification targets. Such processing is shown in more detail in system 50 of FIG. 3, along with details about the provision of sodium chloride and water to the electrolysis cell reactor 22. As shown in FIG. 3, the crude sodium carbonate stream 18, which includes the reacted aqueous solution 16 and particles of hydrated sodium carbonate is delivered to separator 52, which separates the hydrated sodium carbonate particles 18′ from the mother liquor 62. The hydrated sodium carbonate particles 18′ are delivered to drying vessel 54, where heated air stream 56 subjects the hydrated sodium carbonate particles 18′ to desiccation processing. Heat applied in the drying vessel 54 can also thermally decompose any sodium bicarbonate formed in the carbonation reactor 12 to form sodium carbonate, water, and CO2. Air/water vapor stream 58 is exhausted from the drying vessel 54, while anhydrous sodium carbonate 18″ is produced as a final product.

1. customto drying vessel 54, where
2. temperatureheated air stream 56 subjects the hydrated sodium carbonate particles 18′ to desiccation processing
3. temperatureHeat
4. customformed in the carbonation reactor 12

ORD record

ord-1a7d94de6b68438ca428a22383ed2f7d

Source dataset

uspto-grants-2016_02

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US09249030B2