Preparation of Whitening Dihydrate Gypsum and Short Columnar α‐Hemihydrate Gypsum with FGD Gypsum
Sign Up to like & getrecommendations! Published in 2017 at "Crystal Research and Technology"
DOI: 10.1002/crat.201700166
Abstract: Using FGD gypsum as the raw material, whitening and large prismatic dihydrate gypsum can be obtained by dissolution-crystallization and decoloring process with α-hemihydrate gypsum whiskers prepared in MgSO4-CaCl2-H2O solution, which can transform into whitening short columnar… read more here.
Keywords: gypsum; fgd gypsum; dihydrate gypsum; hemihydrate gypsum ... See more keywords
Preparation of α-hemihydrate gypsum from phosphogypsum in recycling CaCl2 solution
Sign Up to like & getrecommendations! Published in 2019 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2019.04.148
Abstract: Abstract Preparing α-hemihydrate gypsum (α-HH) from phosphogypsum (PG) in electrolyte solution and atmospheric pressure has been developed as an energy-efficient and profitable method to dispose PG, which can alleviate its environmental contamination and reduce the… read more here.
Keywords: gypsum phosphogypsum; cacl2 solution; hemihydrate gypsum; solution ... See more keywords
Synthesis of α-hemihydrate gypsum from cleaner phosphogypsum
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Cleaner Production"
DOI: 10.1016/j.jclepro.2018.05.228
Abstract: Abstract Phosphogypsum (PG), as a waste by-product with high content and complicated impurities, is difficult to be utilised effectively. Herein, cleaner PG is prepared with “HCl H2SO4 method”, and thus is used to synthesise α-hemihydrate… read more here.
Keywords: hemihydrate gypsum; synthesis hemihydrate; hemihydrate; gypsum cleaner ... See more keywords
Hierarchical synchrotron diffraction and imaging study of the calcium sulfate hemihydrate–gypsum transformation
Sign Up to like & getrecommendations! Published in 2023 at "Journal of Applied Crystallography"
DOI: 10.1107/s1600576723002881
Abstract: A combined approach of scanning 3D X-ray diffraction and phase contrast tomography has been used to study the hydration of calcium sulfate hemihydrate to form gypsum. This approach was found to be a powerful tool… read more here.
Keywords: diffraction; calcium sulfate; hemihydrate; sulfate hemihydrate ... See more keywords
Synthesis of Triblock Polycarboxylate Superplasticizers with Well-Defined Structure and Its Dispersing Performance in β-Hemihydrate Gypsum
Sign Up to like & getrecommendations! Published in 2023 at "Molecules"
DOI: 10.3390/molecules28020513
Abstract: In this work, a novel AaBAb-type triblock polycarboxylate superplasticizers (PCEs) with well defined molecular structures were designed and synthesized, firstly, by reversible addition-fragmentation chain transfer (RAFT) polymerization, to explore the structure–property relationship PCEs in the… read more here.
Keywords: well defined; polycarboxylate superplasticizers; structure; hemihydrate gypsum ... See more keywords