高级搜索

由粉煤灰提取高纯纳米氧化铝活化过程研究

,  ,  , 

downloadPDF

上一篇

下一篇

季惠明, 马艳红, 吴萍, 徐明霞. 由粉煤灰提取高纯纳米氧化铝活化过程研究[J]. 环境化学, 2007, 26(4): 448-451.
引用本文: 季惠明, 马艳红, 吴萍, 徐明霞. 由粉煤灰提取高纯纳米氧化铝活化过程研究[J]. 环境化学, 2007, 26(4): 448-451.
shu
JI Hui-ming, MA Yan-hong, WU Ping, XU Ming-xia. STUDY OF ACTIVATING PROCESS OF EXTRACTING HIGH-PURITY NANO-ALUMINA FROM FLY ASH[J]. Environmental Chemistry, 2007, 26(4): 448-451.
Citation: JI Hui-ming, MA Yan-hong, WU Ping, XU Ming-xia. STUDY OF ACTIVATING PROCESS OF EXTRACTING HIGH-PURITY NANO-ALUMINA FROM FLY ASH[J]. Environmental Chemistry, 2007, 26(4): 448-451.
shu

由粉煤灰提取高纯纳米氧化铝活化过程研究

  • 1.

    天津大学材料科学与工程学院, 先进陶瓷与加工技术教育部重点实验室, 天津, 300072

  • 基金项目:

    国家自然科学基金(50072014)资助项目

STUDY OF ACTIVATING PROCESS OF EXTRACTING HIGH-PURITY NANO-ALUMINA FROM FLY ASH

  • 1.

    Key Laboratory of Advanced Ceramics and Machining Technology of Ministry of Education, School of Materials of Tianjin University, Tianjin, 300072, China

  • Fund Project:

  • 摘要: 使用煅烧-沥滤新工艺从粉煤灰中提取高纯氧化铝,探讨了活化过程中活化剂的选择、煅烧工艺等因素对粉煤灰活化过程的影响,结果表明:选用Na2CO3为活化剂,900℃下煅烧2h,粉煤灰被充分活化,可以制得晶型结构为α-Al2O3的纳米粉体,形态为类球状,平均粒径为30—50nm,纯度大于99.6%.该方法具有提取率高、能耗低、污染小、易于操作等优点.
    Abstract: A novel sintering-leaching technology was used to extract high-purity nano-alumina from fly ash,and the process of activation was mainly studied in this paper.The effects of the kinds of activating agents and calcining technologies on the activating process were studied in the experiment according to investigating fly ash composition and structure.XRD,SEM,TEM and ICP were used to characterize the morphology,structure and purity of alumina.The results showed that the fly ash was activated efficiently using Na2CO3 as activating agent and calcining at 900℃ for 2h.The α-alumina with like-spherical and average diameter of 30—50nm powders was prepared,and the powder purity is higher than 99.6%.This technology is an ideal method of extracting alumina from fly ash,because of high extraction efficiency,low energy cost,little pollution and simple operation.
  • 加载中
  • [1] 林杰,刘瑞斌,陈登福,粉煤灰提取氧化铝的技术进展[J] .过程工程学报,2004,4(增刊):271-274
    [2] 陆胜,方荣利,赵红,用石灰烧结自粉化法从粉煤灰中回收高纯超细氧化铝粉的研究[J] .粉煤灰,2004,(1):15-17
    [3] 王文静,韩振作,程建国等,酸法提取粉煤灰中氧化铝的条件选择[J] .能源环境保护,2003,17(4):18-19,47
    [4] 黄杰明,非高温法提取粉煤灰中铝和硅的实验研究[J] .电力环境保护,2002,18:28-30
    [5] Park H C,Park Y J,Stevens R,Synthesis of Alumina from High Purity Alum Derived from Coal Fly Ash[J] .Materials Science and Engineering,2004,367:166-170
    [6] Ma Baoguo,Qi Meng,Jun Peng et al.,The Compositions,Surface Texture,Absorption,and Binding Properties of Fly Ash in China.Fuel,1999,25:423-432
    [7] 赵连权,储少彬,Al(OH)3脱水机理研究[J] .化工冶金,1991,12(3):269-271
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  508
  • HTML全文浏览数:  508
  • PDF下载数:  285
  • 施引文献:  0
出版历程
  • 收稿日期:  2006-08-18
季惠明, 马艳红, 吴萍, 徐明霞. 由粉煤灰提取高纯纳米氧化铝活化过程研究[J]. 环境化学, 2007, 26(4): 448-451.
引用本文: 季惠明, 马艳红, 吴萍, 徐明霞. 由粉煤灰提取高纯纳米氧化铝活化过程研究[J]. 环境化学, 2007, 26(4): 448-451.
shu
JI Hui-ming, MA Yan-hong, WU Ping, XU Ming-xia. STUDY OF ACTIVATING PROCESS OF EXTRACTING HIGH-PURITY NANO-ALUMINA FROM FLY ASH[J]. Environmental Chemistry, 2007, 26(4): 448-451.
Citation: JI Hui-ming, MA Yan-hong, WU Ping, XU Ming-xia. STUDY OF ACTIVATING PROCESS OF EXTRACTING HIGH-PURITY NANO-ALUMINA FROM FLY ASH[J]. Environmental Chemistry, 2007, 26(4): 448-451.
shu

由粉煤灰提取高纯纳米氧化铝活化过程研究

  • 1. 天津大学材料科学与工程学院, 先进陶瓷与加工技术教育部重点实验室, 天津, 300072
  • 收稿日期:  2006-08-18
基金项目:

国家自然科学基金(50072014)资助项目

摘要: 使用煅烧-沥滤新工艺从粉煤灰中提取高纯氧化铝,探讨了活化过程中活化剂的选择、煅烧工艺等因素对粉煤灰活化过程的影响,结果表明:选用Na2CO3为活化剂,900℃下煅烧2h,粉煤灰被充分活化,可以制得晶型结构为α-Al2O3的纳米粉体,形态为类球状,平均粒径为30—50nm,纯度大于99.6%.该方法具有提取率高、能耗低、污染小、易于操作等优点.

English Abstract

    全文HTML

参考文献 (1)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心