| 钾长石与氯化钙在磷酸体系中的反应过程探讨 |
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| 引用本文： | 张燕燕,韩效钊,王忠兵,陆亚玲.钾长石与氯化钙在磷酸体系中的反应过程探讨[J].安徽化工,2009,35(4):26-29. |
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| 作者姓名： | 张燕燕 韩效钊 王忠兵 陆亚玲 |
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| 作者单位： | 合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009;合肥工业大学化工学院,安徽,合肥,230009 |
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| 摘 要： | 基于低温水热反应理论，以钾长石和无水氯化钙为反应物，在磷酸体系中研究温度、时间和钾长石粒径对钾、铝溶出率的影响。通过正交试验得出比较理想的反应条件：温度200℃；65％的磷酸用量2．23mL／（g钾长石）；配料比m（氯化钙）：m（钾长石）=1．5：1，此时，钾长石中K2O溶出率可达75％以上，Al2O，溶出率可达95％以上。
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| 关 键 词： | 钾长石 封闭体系 水热反应 |
Study on Reaction Progress of Potash Feldspar and Calcium Chloride in Phosphoric Acid System |
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| ZHANG Yan-yan,HAN Xiao-zhao,WANG Zhong-bing,LU Ya-ling.Study on Reaction Progress of Potash Feldspar and Calcium Chloride in Phosphoric Acid System[J].Anhui Chemical Industry,2009,35(4):26-29. |
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| Authors: | ZHANG Yan-yan HAN Xiao-zhao WANG Zhong-bing LU Ya-ling |
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| Affiliation: | ZHANG Yan-yan,HAN Xiao-zhao,WANG Zhong-bing,LU Ya-ling (School of Chemical Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | This paper based on the low-temperature hydrothermal reaction theory, investigated the hydrothermal reaction of the closed system at low temperature. The main reactants are K-feldspar and anhydrous calcium chloride. In the phosphoric acid system, K and Al is extracted from the potassium feldspar by altering temperature,time and grain of K- feldspar. From the experiment, the optimum conditions are obtained： temperature 200 ℃, additive dosage 2.23mL/（g K- feldspar）, ingredients ratio m （CaCl2）： m （K-feldspar） = 1.5：1, with dissolution rates of K2O and Al2O3 in K-feldspar up to 75% and 95% or higher. |
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| Keywords: | potash feldspar close system hydro-thermal reaction |
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