How are the fixed ammonium salts in the remaining ammonia water decomposed?
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How is ammonia in the ammonium salts trapped in the remaining ammonia water decomposed using substances with a stronger basicity than ammonia water (such as liquid alkali)?
Sodium hydroxide reacts with the fixed ammonium salt to form ammonium hydroxide and a sodium salt; it is actually a displacement reaction.
What is the specific reaction equation?
Reply to 3# dingshaojun: The specific formula is NaOH + NH4CI = NH3.H2O + NaCI
The general ammonia distillation processes are divided into single-tower and double-tower types. In the single-tower type, 30% NaOH is added directly into the ammonia distillation tower, while in the double-tower type, NaOH is added to a mixing tower, after which the mixture is sent back to the ammonia distillation tower for vaporization.