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[1]张勇,周莹莹,沈玉明,等.生石灰粉磨段收尘灰制备轻质碳酸钙工艺[J].武汉工程大学学报,2013,(09):7-12.[doi:103969/jissn16742869201309002]
　ZHANG Yong,ZHOU Ying\|ying,SNEN Yu\|ming,et al.Preparation technology of light calcium carbonate from received flue dust of quicklime powders grinding[J].Journal of Wuhan Institute of Technology,2013,(09):7-12.[doi:103969/jissn16742869201309002]
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生石灰粉磨段收尘灰制备轻质碳酸钙工艺(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2013年09期
页码:
7-12
栏目:
资源与土木工程
出版日期:
2013-10-10

文章信息/Info

Title:
Preparation technology of light calcium carbonate from received flue dust of quicklime powders grinding
文章编号:
16742869(2013)09000706
作者:
张勇1; 周莹莹1; 沈玉明2; 罗华平2; 刘鹏达1
1.武汉工程大学材料科学与工程学院,湖北 武汉 430074；2.攀钢集团矿业有限公司石灰石矿,四川 攀枝花 617065
Author(s):
ZHANG Yong1;  ZHOU Ying\|ying1;  SNEN Yu\|ming2;  LUO Hua\|ping2; LIU Peng\|da1
1.School of Materials Science andEngineering of Wuhan Institute of Technology, Wuhan 430074,China；2.Lime Stone Mine of PanzhihuaIron and Steel Group Minerals Co., LTD, Panzhihua 617065,China
关键词:
收尘灰; 碳化法; 水化
Keywords:
received flue dust;  carbonization method;  hydration
分类号:
TQ132.32
DOI:
103969/jissn16742869201309002
文献标志码:
A
摘要:
为充分利用石灰石矿的粉矿资源并减少二氧化碳尾气排放，以生石灰粉磨工段收尘灰为原料，利用立窑尾气通过碳化法制备了轻质碳酸钙.首先使用x\|射线电子能谱及筛分法对收尘灰的成分及粒度分布进行了测定，然后探讨了水化温度和水化时间对水化过程的影响，并使用扫描电镜对水化产物的形貌进行了研究，最后研究了碳化温度和碳化时间对水化产物碳化过程的影响，并研究了产物形貌.结果表明，其最佳工艺条件为：将收尘灰于100 ℃条件下水化5～8 h，然后使用立窑尾气碳化10～20 min，可得到粒度分布均匀的轻质碳酸钙粉体，部分碳酸钙结晶为针状，可用于塑料制品的补强.通过该方法的制备的碳酸钙产品可达到化工行业标准《HG/T 2226\|2000》所规定的质量要求.
Abstract:
To make full use of the calcium oxide powders resources and reduce the exhaust gas in lime stone production, light calcium carbonate was prepared by carbonization method using received flue dust of quick lime powder grinding as raw material via carbon dioxide gas of the exhaust .The composition and particle distributing of the received flue dust were tested firstly by X\|ray electron spectroscopy and sieve method, then the effect of hydration time and temperature on hydration process was studied and the surface morphology was revolved by scanning electron microscope, eventually the carbonization conditions such as time and temperature of the hydration products were determined and the surface morphology of calcium carbonate was also studied. The results show as fellows: the optimum conditions are that the received flue dust is hydrated at 100 ℃ for 5-8 h, then the hydration product is carbonized via carbon dioxide gas of the exhaust for 10-20 min, and the calcium carbonate powders with uniform size distribution are obtained, in which some of particles are needle\|like and can be used as plastic reinforcing agent. By this method, the character of produced calcium carbonate powders is matched with the chemistry industry standard of HG/T 2226\|2000.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：20130626作者简介：张勇（1976\|），男，湖北汉川人，副教授，博士.研究方向：材料化学.
更新日期/Last Update: 2013-10-11