【20090910 Key Topic】How to Prevent Anhydrous Sodium Sulfate from Crystallizing in Production
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The last edit to this post was made by wbp on 2009-9-10 01:11. As the title suggests, we are using 10% sodium sulfate solution to produce anhydrous sodium sulfate; how can we prevent anhydrous sodium sulfate from crystallizing too quickly during the production process?
The main reason why anhydrous sulfuric acid is difficult to crystallize is its tendency to absorb moisture and form crystal bridges. A small amount of water-absorbing substances and surfactants can be added; one purpose is to reduce the water absorption of anhydrous sodium sulfate, and the other is to alter its crystal structure and prevent the formation of crystal bridges.
Control the evaporation rate and supersaturation.
Who can give a more detailed explanation? Thank you
Do not increase the temperature too quickly in order to control the crystallization rate