硅酸盐通报2024，Vol.43Issue(10)：3858-3864,7.
阳离子对制备半水硫酸钙晶须影响的研究进展
Research Progress on Influences of Cations on Preparation of Calcium Sulfate Hemihydrate Whiskers
摘要
Abstract
The effects of soluble ions on the morphology and crystal growth of calcium sulfate hemihydrate whiskers are very significant.In order to gain a deeper understanding of the basic theory of regulating whiskers,this paper summarises the progress of research on the effects of different types and concentrations of soluble cations in desulfurization gypsum on the whisker preparation.The low concentration of Na+ has a small effect on the calcium sulfate hemihydrate whiskers and barely affects the morphology and surface smoothness of the whiskers.The content of K+is suitable to be 3％(mass fraction)or below,and the higher content has a detrimental effect on the growth of calcium sulfate hemihydrate whiskers.Mg2+ makes the whisker surface more homogeneous and crystalline.And the trace amount of selective adsorption of Al3+has no effect on the whisker length-to-diameter ratio.Similar to K+,Fe3+ also has the optimal concentration,which is lower than 2 mmol/L.Unlike the cations mentioned above,Cu2+ is not from the raw material,but is an additional ion introduced in the doping of the appropriate amount of Cu2+ is conducive to the formation of whiskers with a smooth and uniform surface.关键词
脱硫石膏/半水硫酸钙晶须/可溶性阳离子/长径比/晶须形貌/调控Key words
desulfurization gypsum/calcium sulfate hemihydrate whisker/soluble cation/aspect ratio/whisker morphology/regulation分类
化学化工引用本文复制引用
胡晓婷,周煜滔,刘永梅,郭洁敏,孟秀芳,申曙光..阳离子对制备半水硫酸钙晶须影响的研究进展[J].硅酸盐通报,2024,43(10):3858-3864,7.基金项目
山西省基础研究计划(20210302123179) （20210302123179）
碳硫固体酸的制备及其在合成生物柴油上的应用(202402007) （202402007）
脱硫石膏、粉煤灰、煤矸石等大宗固废高值利用技术研发(RH2200001877) （RH2200001877）
