| 电石渣热处理条件对合成超轻硬硅钙石的影响 |
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| 引用本文： | 刘飞,曾令可,曹建新,林倩,张煜.电石渣热处理条件对合成超轻硬硅钙石的影响[J].材料热处理学报,2008(6). |
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| 作者姓名： | 刘飞 曾令可 曹建新 林倩 张煜 |
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| 作者单位： | 华南理工大学材料科学与工程学院;贵州大学化学工程学院; |
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| 基金项目： | 国家自然科学基金(50676033); 贵州省科技攻关项目(黔科合GY字[2006]3030); 贵阳市科学技术计划项目([2006]筑科工合同字第16-9号) |
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| 摘 要： | 采用DTA/TG研究了电石渣的热处理性能,采用XRD及SEM等检测手段,研究了经不同温度煅烧后电石渣的矿物组成、形貌以及热处理条件对石灰活性及合成硬硅钙石的影响。结果表明,电石渣经适当煅烧处理后可以作为钙质原料制备超轻硬硅钙石。不同电石渣煅烧温度对合成产物的晶相组成没有影响,但对石灰活性及合成产物的微观形貌有较大的影响。700、800℃煅烧电石渣制备的石灰乳活性大,合成得到的硬硅钙石粒子球形度完整;而900、1000℃煅烧电石渣制备的石灰乳活性小,合成得到的硬硅钙石球形粒子直径小,且倾向于紧密团聚。
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| 关 键 词： | 电石渣 石灰活性 超轻硬硅钙石 煅烧温度 |
Influence of heat-treatment of carbide slag on preparation of ultra-light xonotlite |
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| LIU Fei,ZENG Ling-ke,CAO Jian-xin,LIN Qian,ZHANG Yu.Influence of heat-treatment of carbide slag on preparation of ultra-light xonotlite[J].Transactions of Materials and Heat Treatment,2008(6). |
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| Authors: | LIU Fei ZENG Ling-ke CAO Jian-xin LIN Qian ZHANG Yu |
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| Affiliation: | LIU Fei1,2,ZENG Ling-ke1,CAO Jian-xin2,LIN Qian2,ZHANG Yu2(1.Department of Materials Science , Engineering,South China University of Technology,Guangzhou 510640,China,2.Department of Chemical Engineering,Guizhou University,Guizhou 550003,China) |
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| Abstract: | The heat-treatment performance of carbide slag was studied with the method of DTA-TG,and effects of the mineral composition,morphology and heat-treatment conditions of the carbide slag which was calcined at different temperatures on lime activity and synthesized xonotlite were researched by using XRD and SEM.The results indicate that the carbide slag after proper calcination can be used to prepare ultra-light xonotlite as the calcareous materials,and calcination temperature has no effect on crystal phase of... |
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| Keywords: | carbide slag lime activity ultra-light xonotlite calcination temperature |
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