| 以温石棉尾矿为镁源制备碱式硫酸镁晶须 |
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| 引用本文： | 朱存金,彭同江,鲜海洋,钟俊,吴胜,唐靖勇.以温石棉尾矿为镁源制备碱式硫酸镁晶须[J].非金属矿,2012,35(1):33-36. |
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| 作者姓名： | 朱存金 彭同江 鲜海洋 钟俊 吴胜 唐靖勇 |
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| 作者单位： | 1. 西南科技大学固体废物处理与资源化省部共建教育部重点实验室,四川绵阳,621010
2. 西南科技大学固体废物处理与资源化省部共建教育部重点实验室,四川绵阳621010;西南科技大学分析测试中心,四川绵阳621010 |
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| 基金项目： | 固体废物处理与资源化省部共建教育部重点实验室开放基金资助项目，西南科技大学大学生创新基金 |
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| 摘 要： | 将温石棉尾矿煅烧活化产物酸浸获得硫酸镁溶液,以硫酸镁溶液与轻质氧化镁为反应物料,采用水热合成法制备碱式硫酸镁晶须,并对其进行了SEM、XRD、FT-IR以及TG-DTA分析.研究了MgSO4溶液的浓度、硫酸镁与氧化镁摩尔比、反应温度对产物的影响.实验结果表明,该法制备碱式硫酸镁晶须的较佳条件为:MgSO4浓度0.6 mol/L,硫酸镁与氧化镁的摩尔比1∶2,反应温度170℃.实验制备的碱式硫酸镁晶须样品长径比为10～50,其分子式为MgSO4·5Mg(OH)2· 3H2O.
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| 关 键 词： | 温石棉尾矿 水热合成法 碱式硫酸镁晶须 |
Preparation of Basic Magnesium Sulfate from Chrysotile Asbestos Tailing |
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| Zhu Cunjin
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Peng Tongjiang
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Xian Haiyang
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Zhong Jun
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Wu Sheng
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Tang Jingyong.Preparation of Basic Magnesium Sulfate from Chrysotile Asbestos Tailing[J].Non-metallic Mines,2012,35(1):33-36. |
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| Authors: | Zhu Cunjin Peng Tongjiang Xian Haiyang Zhong Jun Wu Sheng Tang Jingyong |
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| Affiliation: | 1(1 Key Laboratory of Solid Waste Treatment and Resource Recycle of Southwest University of Science and Technology,Ministry of Education,Mianyang,Sichuan 621010;2 Analytical and Testing Center of Southwest University of Science and Technology,Mianyang,Sichuan 621010) |
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| Abstract: | Chrysotile asbestos tailings calcined activation products were leached by sulfuric acid to prepare magnesium sulfate solution.Magnesium sulfate solution with light magnesium oxide to the reaction materials were prepared by hydrothermal synthesis method of magnesium sulfate whiskers.And SEM,XRD,FT-IR and TG-DTA were performed for analysis of basic magnesium sulfate whiskers.The effects of the solution concentration of MgSO4,mol ratio of magnesium sulfate and magnesium oxide,and the temperature of the reaction on the preparation were studied.The results of the experiment show that the better preparation conditions of basic magnesium sulfate whisker: MgSO4 concentration of 0.6 mol/L,magnesium sulfate and magnesium oxide in a mol ratio of 1:2,and reaction temperature of 170 ℃.The prepared magnesium sulfate whisker experiment samples aspect ratio is 10 ~ 50,the formula is MgSO4.5Mg(OH)2.3H2O. |
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| Keywords: | chrysotile asbestos tailings hydrothermal synthesis magnesium sulfate whisker |
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