Preparation of α-calcium sulfate hemihydrate from phosphogypsum in Ca-Na-Cl solutions under atmospheric pressure
MA Baoguo, RU Xiaohong, ZOU Kaibo, LU Siwen, FU Haobing
CIESC Journal . 2013, (7): 2701 -2707 .  DOI: 10.3969/j.issn.0438-1157.2013.07.053