Why does the condensate water suddenly contain a large amount of sodium carbonate during the evaporation of caustic soda?
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This post was last edited by sunjl1981 on 2013-1-6 23:46 During production, due to a valve failure, the first effect ran out of alkali, resulting in a high sodium carbonate content in the second effect condensate water. What reaction does sodium oxyoxide react with to form sodium carbonate? This post was last edited by limingshuguang on 2009-1-12 10:51 ] # hcbbs
How much has the content increased? Explain
Which valve? Please indicate whether the vacuum degree is insufficient, causing CO2 in the air to enter?
Sodium hydroxide reacts with carbon dioxide in the air to form sodium carbonate. The reaction formula is:: 2NaOH+CO2=Na2CO3+H2O Are you asking this?
It should be that the carbon dioxide reacted with the caustic soda in the condensed water.
The problem description is a bit simple and the answer is very simple: carbon dioxide. 2NaOH+CO2=Na2CO3+H2O
Thank you for your answers! ! Friends on the 2nd floor: The content reaches more than 300 grams per liter. Friends on the 3rd floor: Our production is downstream, and we use positive pressure to run the alkali. Thank you very much for the answer from my friend on Floor 456. I'm really sorry that I didn't explain the question clearly. Sodium carbonate is produced by the reaction of sodium hydroxide and carbon dioxide. What I want to know is where does carbon dioxide come from? Is it entrained in the secondary steam? Or will calcium carbonate release carbon dioxide? Or is there any other substance produced by the reaction with sodium hydroxide? Have you ever encountered this before? Thanks! !
Condensed water containing sodium carbonate will appear when running alkali or perforating the heating chamber.
300 grams per liter? Soda ash? 》The data is definitely wrong.
4# wf35516481 It should be that carbon dioxide reacts with the caustic soda in the condensed water.
This is caused by the reaction between CO2 in the air and caustic soda in the condensed water.