Issues with sodium carbonate crystallization?
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Has anyone here conducted or is currently conducting experiments related to the crystallization of sodium carbonate? In the organic base system in my company’s workshop, there is carbonate present; desalination is carried out by adding sodium hydroxide to produce sodium carbonate, but the results are not very satisfactory. I think it might be because the reaction conditions are not optimal, and I would like to consult experts in this field! Thank you! ! !
The control of the reactive crystallization process is generally quite complex; it relies mainly on the balance between the rate of reaction-induced precipitation and the rate of crystallization. Of course, carrying out this process requires specific equipment, and the quality of the design of such equipment plays a significant role as well.
This post was last edited by wjch1012 on 2010-6-27 at 22:37. Reply to 2# yanglibin_tju: The reactor we use in our workshop is a regular one; there’s nothing special about it. It is mainly to control the reaction temperature. After maintaining it for a while, it was filtered. Hehe, is there a graph showing the crystals of sodium carbonate? I think it is mainly related to the concentration of sodium carbonate crystals and the aging time; I’m not sure if that’s correct. Note: We first allow crystallization to occur, maintain that state for a while, and then remove the crystals using filtration.
Reply to 3# wjch1012: Calcium carbonate crystallization is mainly determined by the carbonation reaction conditions, with temperature having a relatively minor impact
Reply to 4# yanglibin_tju: Ours are sodium carbonate crystals. We add sodium ions. The addition amount is mainly determined by the carbonate concentration.