High-Efficiency Purification and Morphology Regulation of CaSO₄·2H₂O Crystals from Phosphogypsum.

ABSTRACT: Phosphogypsum is a solid waste with great environmental stockpile pressure produced by the wet production of phosphoric acid. Although there are various methods to purify and utilize phosphogypsum, the means for environmentally friendly, low energy consumption, and high value-added utilization still need to be further explored. Here, CaSO₄·2H₂O crystal was directly purified and regulated from phosphogypsum by using the anti-solvent method. The antisolvent can be adsorbed in the c-axis direction of the crystal and further inhibit the growth rate in this direction, resulting in a change in the morphology of the crystal. By adjusting the polarity and chain length of the anti-solvent, the morphology of CaSO₄·2H₂O crystal can change from butter

SUBMITTER: Lei Y 

PROVIDER: S-EPMC11357588 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature