| 制盐废石膏制备硫酸钙晶须 |
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| 引用本文： | 刘勇,崔益顺,王雪娟.制盐废石膏制备硫酸钙晶须[J].四川化工,2013,16(1):1-4. |
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| 作者姓名： | 刘勇 崔益顺 王雪娟 |
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| 作者单位： | 1. 四川理工学院材料与化工学院,四川自贡,643000
2. 自贡市科技局,四川自贡,643000 |
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| 基金项目： | 盐厂废石膏制备石膏晶须材料的工艺研究(10607010306) |
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| 摘 要： | 以制盐废石膏为原料采用水热法制备硫酸钙晶须，研究了料浆浓度、反应温度、反应时间、晶型助长剂氯化镁用量以及pH值对硫酸钙晶须收率和形态的影响。结果表明，较佳反应条件为：料浆浓度为15．0％，140℃下反应8h，反应体系的pH值=3。在此条件下，收率可达54．2％，平均长径比为55。
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| 关 键 词： | 脱盐石膏 硫酸钙晶须 水热法 晶型助长剂 氯化镁 |
Salt Study on Technology of Waste Gypsum Calcium Sulfate Whiskers |
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| Liu Yong
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Cui Yishun
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Wang Xuejuan.Salt Study on Technology of Waste Gypsum Calcium Sulfate Whiskers[J].sichuan chemical industry,2013,16(1):1-4. |
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| Authors: | Liu Yong Cui Yishun Wang Xuejuan |
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| Affiliation: | 1.Sichuan Institute of Technology,Zigong 643000,Sichuan,China; 2.Zigong Administration of Science &Technology,Zigong 643000,Sichuan,China) |
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| Abstract: | Calcium sulfate whisker （CSW） was prepared by hydrothermal method using salt waste gypsum as raw material. The influence of slurry concentration, reaction temperature, reaction time, dosage of crystal promoter magnesium chloride and PH on the whisker yield and morphology was investigated. The experimental results showed that, the optimum process conditions for preparation of calcium sulfate whisk- er： the slurry concentration is 15.0%; the reaction temperature is 140℃ for 8h; pH=3, in the condi- tions, the yield is up to 54.2%, with an average aspect ratio of 65. |
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| Keywords: | desalination gypsum calcium sulfate whiskers hydrothermal method crystal promoter magne-sium chloride |
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