| 白云石精制液中不同离子对碳酸钙晶须的影响 |
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| 引用本文： | 王东意,郑强,于亚杰,徐少伟,王禹博,邓晓阳,曹笑宁,岳岩,李雪,刘云义. 白云石精制液中不同离子对碳酸钙晶须的影响[J]. 人工晶体学报, 2021, 50(5): 908-914 |
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| 作者姓名： | 王东意 郑强 于亚杰 徐少伟 王禹博 邓晓阳 曹笑宁 岳岩 李雪 刘云义 |
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| 作者单位： | 沈阳化工大学化学工程学院,辽宁省化工应用重点实验室,沈阳 110142;沈阳化工大学化学工程学院,辽宁省化工应用重点实验室,沈阳 110142;辽宁精细化工协同创新中心,沈阳 110142 |
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| 基金项目： | 辽宁省自然基金(2015020609);沈阳市中青年科技创新人才支持计划(RC180140);辽宁省“百千万人才工程”A类项目 |
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| 摘 要： | 以白云石精制液和二氧化碳为实验原料,采用气液接触法制备碳酸钙晶须.研究了杂质离子Mg2+、NH4+和NO3-对碳酸钙晶须长径比和形貌的影响.采用扫描电镜(SEM)和X射线衍射仪(XRD)对样品的形貌和晶体结构进行表征.结果表明:NH4+浓度在0.3 mol/L,Mg2+浓度在0.05 mol/L,NO3-浓度在0.2 ...
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| 关 键 词： | 白云石 二氧化碳 杂质离子 气液接触法 碳酸钙晶须 形貌 长径比 |
| 收稿时间： | 2021-01-13 |
Effects of Different Ions in Dolomite Refining Solution on Calcium Carbonate Whiskers |
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| WANG Dongyi,ZHENG Qiang,YU Yajie,XU Shaowei,WANG Yubo,DENG Xiaoyang,CAO Xiaoning,YUE Yan,LI Xue,LIU Yunyi. Effects of Different Ions in Dolomite Refining Solution on Calcium Carbonate Whiskers[J]. Journal of Synthetic Crystals, 2021, 50(5): 908-914 |
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| Authors: | WANG Dongyi ZHENG Qiang YU Yajie XU Shaowei WANG Yubo DENG Xiaoyang CAO Xiaoning YUE Yan LI Xue LIU Yunyi |
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| Affiliation: | 1. Liaoning Key Laboratory of Chemical Application, School of Chemical Engineering, Shenyang University of Chemical Technology, Shenyang 110142, China; 2. Liaoning Fine Chemical Collaborative Innovation Center, Shenyang 110142, China |
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| Abstract: | Dolomite mineral deposits are abundant and widely distributed in our country.Calcium carbonate whiskers were prepared by gas-liquid contact method using dolomite refining solution and carbon dioxide as experimental raw materials. The effects of impurity ions Mg2+, NH+4 and NO-3 on the aspect ratio and morphology of calcium carbonate whiskers were studied. Morphology and phase structure of the products were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the morphology and aspect ratio of calcium carbonate whiskers are the best when the concentration of NH+4 is 0.3 mol/L, the concentration of Mg2+ is 0.05 mol/L, and the concentration of NO-3is 0.2 mol/L, the aspect ratio reaches above 25 at the highest. Finally, the crystallization process and growth mechanism of calcium carbonate whiskers are explained by combining with crystal growth theory. |
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| Keywords: | dolomite carbon dioxide impurity ion gas-liquid contact method calcium carbonate whisker morphology aspect ratio |
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