Indirect aqueous carbonation of CaSO4·2H2O with aspartic acid as a recyclable additive
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DOI: 10.1039/d2ra03763g
Abstract: Calcium leaching using additives is the most critical step in the indirect aqueous carbonation process of CaSO4·2H2O. However, recovery of the soluble additives from the sulfate-rich carbonation filtrate limits the large-scale industrial implementation of current… read more here.
Keywords: indirect aqueous; aqueous carbonation; caso4 2h2o; aspartic acid ... See more keywords
A Novel Process to Recover Gypsum from Phosphogypsum
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DOI: 10.3390/ma15051944
Abstract: In this study, we investigated a coarse phosphogypsum containing 49.63% SO3, 41.41% CaO, 10.68%, 4.47% SiO2, 1.28% P2O5, 0.11% F, CaSO4·2H2O purity of 80.65%, and whiteness of 27.68. Phosphogypsum contains calcium sulfate dehydrate as the… read more here.
Keywords: phosphogypsum; gypsum concentrate; caso4 2h2o; gypsum ... See more keywords