MEng  >> Vol. 4 No. 2 (June 2017)

    工艺制度对脱硫灰制备硫酸钙晶须的影响作用
    Effect of Process System on the Preparation of Calcium Sulfate Whiskers from Desulphurization Gypsum

  • 全文下载: PDF(633KB) HTML   XML   PP.85-90   DOI: 10.12677/MEng.2017.42012  
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作者:  

宋景尧,史培阳,姜茂发:东北大学冶金学院,多金属共生矿生态化冶金教育部重点实验室,辽宁 沈阳

关键词:
烧结烟气脱硫灰硫酸钙晶须水热法长径比Desulphurization Gypsum Calcium Sulfate Whiskers Hydrothermal Method Aspect Ratio

摘要:

以烧结烟气脱硫灰为原料,采用水热法工艺制备硫酸钙晶须。借助电导率、XRD、高分辨显微镜和SEM等分析方法,研究了在不同反应条件下晶须生长的变化规律,随着反应温度的升高和反应时间的延长,硫酸晶须的长径比呈先增加后降低的趋势,当反应温度为140℃,反应时间为60 min时,晶须的长径比最大,其值为84。

Using desulphurization gypsum as raw material, hydrothermal method was applied to prepare calcium sulfate whisker. And using conductivity, XRD, high resolution microscope and SEM as analysis methods, the growth principles of calcium sulfate under different reaction conditions were explored, and consequently such conclusion was coming that with the increase of reaction temperature, reaction time, the aspect ratio of calcium sulfate whisker was lower after first rising trend. When reaction temperature is 140˚C, reaction time is 60 min, the aspect ratio of calcium sulfate whisker is maximum, which reaches 84.

文章引用:
宋景尧, 史培阳, 姜茂发. 工艺制度对脱硫灰制备硫酸钙晶须的影响作用[J]. 冶金工程, 2017, 4(2): 85-90. https://doi.org/10.12677/MEng.2017.42012

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