| Fe^3＋,Al^3＋,Mg^2＋对石膏结晶习性影响的研究 |
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| 引用本文： | 李军,王国平.Fe^3＋,Al^3＋,Mg^2＋对石膏结晶习性影响的研究[J].化学工业与工程,1997,14(2):1-5,59. |
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| 作者姓名： | 李军 王国平 |
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| 作者单位： | 四川联合大学化工系 |
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| 摘 要： | 本文在ＭＳＭＰＲ结晶器中研究了无Ｆ存在下，Ｆｅ＾３＋、Ａｌ＾３＋、Ｍｇ＾２＋三咱离子共存时对石膏结晶习性的影响，结果发现，无论硫酸根过量２．４％还是过量４．８％，Ｆｅ＾３＋、Ａｌ＾３＋、Ｍｇ＾２＋共存得到的石膏晶体几乎都是针状晶体；当硫酸另两种相应的离子浓度保持一定水平时，增大Ｆｅ＾３＋含量，石膏晶体变长；增长Ｍｇ＾２＋含量，石膏晶体变小；增长Ａｌ＾３＋含量，石膏晶体长大，Ｆ与Ａｌ＾３＋同时存在
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| 关 键 词： | 石膏 结晶 晶体形态 铁 铝 镁 |
The Effects of Fe 3 ,Al 3 and Mg 2 on the Crystal Habits of Gypsum |
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| Li Jun,Wang Guoping,Zhong Benhe.The Effects of Fe 3 ,Al 3 and Mg 2 on the Crystal Habits of Gypsum[J].Chemical Industry and Engineering,1997,14(2):1-5,59. |
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| Authors: | Li Jun Wang Guoping Zhong Benhe |
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| Abstract: | The effects of Fe 3 ,Al 3 and Mg 2 on the crystal habits of gypsum in wet phosphoric acid in the absence of F - were studied in a continous MSMPR crystallizer.The results of the experiments showed that the crystals of Gypsum were of meedle shape no matter whether the free excess of SO 2- 4 was 2 4% or 4 8%.When the concentrations of SO 2- 4 and the other two corresponding impurities were kept constant,the crystal length of gypsum increased with the increase of Fe 3 content;the crystal size of gypsum decreased with the increase of Mg 2 content and increased with the increase of Al 3 content.The presence of F - and Al 3 would promote the formation of aggregating crystal. |
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| Keywords: | gypsum crystal crystal shape |
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