Method for preparing high-purity phosphoric acid by crystallization
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I know that sulfuric acid also has crystallization issues, but I wonder if anyone has considered using the crystallization method to produce high-purity sulfuric acid? I came across some technical materials 2 years ago; there were methods for producing high-purity phosphoric acid using crystallization, but it seems that this approach isn’t feasible either. The crystallization temperature for 85% phosphoric acid is between 0 and 21 degrees Celsius – crystallization can occur at these temperatures. So how can we induce crystallization? A practical problem is that sometimes, we don’t want crystallization to occur, yet it still happens anyway. Dear friends, please discuss from your own perspectives and expertise on how to prepare high-purity phosphoric acid using the crystallization method
I came across the original poster’s post by chance; I didn’t realize that over a decade had passed. High-purity phosphoric acid can be purified through melt crystallization