| 晶种控制沉淀法制备重质碳酸锰 |
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| 引用本文： | 赵俊海,吴显明,陈上,何海亮,麻明友,丁其晨.晶种控制沉淀法制备重质碳酸锰[J].陕西化工,2013(11):2039-2041. |
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| 作者姓名： | 赵俊海 吴显明 陈上 何海亮 麻明友 丁其晨 |
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| 作者单位： | [1]吉首大学化学化工学院,湖南吉首416000 [2]湘西自治州矿产与新材料技术创新服务中心,湖南吉首416000 |
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| 摘 要： | 采用添加晶种控制结晶沉淀的方法来制备碳酸锰，考察了温度、碳酸氢铵浓度、晶种用量以及反应物滴加时间等条件对产物碳酸锰振实密度的影响规律。结果表明，当反应温度为30℃，晶种加入量为20％，碳酸氢铵浓度为2mol／L，反应物滴加时间为4．5h时，制备出振实密度可达2．3g/cm3、纯度高的重质碳酸锰，且实验的重复性好。
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| 关 键 词： | 碳酸锰 温度 滴加时间 振实密度 晶种 |
Preparation of dense manganese carbonate by chemical precipitation of crystal seed control |
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| ZHAO Jun-hai,WU Xian-ming,CHEN Shang,HE Hai-liang,MA Ming-you,DING Qi-chen.Preparation of dense manganese carbonate by chemical precipitation of crystal seed control[J].Applied Chemical Industry,2013(11):2039-2041. |
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| Authors: | ZHAO Jun-hai WU Xian-ming CHEN Shang HE Hai-liang MA Ming-you DING Qi-chen |
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| Affiliation: | 1 ( 1. College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000 ,China; 2. Xiangxi Minerals and New Materials Development and Service Center,Jishou 416000, China) |
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| Abstract: | Manganese carbonate was prepared by controlled crystallization method with seeding material. The effect of reaction temperature, ammonium bicarbonate concentration, crystal seeds and the dropping time of reactants on the tap density of manganese carbonate was investigated. The optimal preparation conditions are as follows：the reaction temperature is 30℃, seed crystal consumption is 20%, the concentration of ammonium bicarbonate is 2 mol/L,the dropping time of reactants is 4.5 h ,the tap density of man- ganese carbonate prepared under these conditions reaches 2.3 g/cm3. The manganese carbonate has a high purity and the preparation method has good reproducibility. |
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| Keywords: | manganese carbonate temperature dropping time tap density crystal seed |
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