[1]邱琦,李迎建,罗仲宽,等.碳还原剂加入方式对粉煤灰氮化反应的影响[J].深圳大学学报理工版,2009,26(2):197-202.
 QIU Qi,LI Ying-jian,LUO Zhong-kuan,et al.Impact of carbon addition method on extent of nitridation reaction of fly ash[J].Journal of Shenzhen University Science and Engineering,2009,26(2):197-202.
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碳还原剂加入方式对粉煤灰氮化反应的影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第26卷
期数:
2009年2期
页码:
197-202
栏目:
化学与化工
出版日期:
2009-04-30

文章信息/Info

Title:
Impact of carbon addition method on extent of nitridation reaction of fly ash
文章编号:
1000-2618(2009)02-0197-06
作者:
邱琦1李迎建1罗仲宽1Hlavacek V 2
1)深圳大学化学与化工学院,深圳 518060;
2)纽约州立大学布法罗分校,纽约 14260
Author(s):
QIU Qi1LI Ying-jian1LUO Zhong-kuan1and Hlavacek V2
1)College of Chemistry and Chemical Engineering,Shenzhen University,Shenzhen 518060,P.R.China;
2)School of Chemical & Biological Engineering,University at Buffalo Amherst,Newyork 14260,USA
关键词:
粉煤灰碳还原氮化高能球磨SiAlON工业废料处理
Keywords:
fly ashcarbothermal reduction and nitridationhigh energy ball millingSiAlONtreatment of industrial waste
分类号:
TQ 170.9
文献标志码:
A
摘要:
通过碳还原氮化反应,从工业废料粉煤灰制备氮化陶瓷类材料.采用氮/氧分析仪测定产物氮含量,评价氮化反应程度;以BET氮气吸附法测定比表面积,分析粉体活性;以扫描电镜分析样品表面形貌;以热重分析仪测定碳含量,X射线能谱仪估计元素组成.比较机械混合法、超声法和高能球磨法3种碳加入方式.结果表明,粉煤灰自身含碳的还原活性处于机械混合法和高能球磨混合法之间,高能球磨法对提高反应混合物活性最有效,所得产物结晶氮含量最高,质量分数可由0.3 %提高到23.1%.
Abstract:
The carbon addition methods to fly ash are discussed here,on their impact on the extent of the nitridation reaction.These methods are mechanical shaking,ultrasonic mixing,and high-energy ball milling.The extent of nitridation is evaluated by the nitrogen content determined by a LECO Nitrogen/Oxygen determinator.Ultimately,dry high energy ball milling is proposed for CRN reaction of fly ash and carbon black mixture.The nitrogen content introduced into the fly ash can reach 23.1% after the CRN reactions,as compared with 0.3% before the nitridation reaction.Moreover,the reducing activity of intrinsic carbon in untreated fly ash is between that of a mechanically mixed fly ash/carbon and that of a ball-milled fly ash/carbon mixture.Equipment analysis was carried out to characterize the samples,including BET surface area measurement,scanning electronic microscopy,and energy dispersive x-ray diffraction.

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备注/Memo

备注/Memo:
收稿日期:2009-02-16
基金项目:广东省自然科学基金资助项目(2008227);深圳市公共科技基金资助项目(2008343)
作者简介:邱琦(1976-),女(汉族),江苏省宜兴市人,深圳大学讲师、博士.E-mail:chwchi@gmail.com
通讯作者:李迎建(1953-),男(汉族),深圳大学研究员.E-mail:szulyj@sohu.com
更新日期/Last Update: 2009-05-15