I'm studying the research about bottom glycerine rightnow, and the project is to recover the glycerine from bottom glycerine. I have already read many journal about the recovery and one of the journal explain that the addition of H2SO4 will decrease the solubility of glycerine with salt. however, the addition of H2SO4 will create N2SO4 and i should separate it before i evaporate the glycerine.

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