Paper Title:
Research on the Dissolving Character of Active Si/Al in Fly Ash Activated by Alkali
  Abstract

This paper investigated the influence of activator concentration, reaction time and fineness of fly ash on the dissolving character of the active Si/Al in fly ash activated by alkali. The results indicated that with the increase of the NaOH solution concentration, the dissolving percentage of active Si/Al in the fly ash went up. The finer the fly ash particles were, the higher dissolving percentage of active Si/Al was obtained. Under strong basic (2M NaOH solution) and boiling condition, the reaction time of active Si/Al dissolving was short and less than 10 minutes. The content of vitreous phase contributed to the content of active components. Active Si existed in the state of Q0 unit which presented an isolated silicon-oxide tetrahedron in fly ash, and active Al exhibited as Al[OSi]3 and Al[OSi]4 units in 4 coordinate. As the fly ash was activated by alkali, smooth shell of fly ash was gradually corroded by NaOH solution, glass phase was dissolved and crystal phase was exposed to the outside.

  Info
Periodical
Advanced Materials Research (Volumes 150-151)
Edited by
Jinglong Bu, Zhengyi Jiang and Sihai Jiao
Pages
1790-1795
DOI
10.4028/www.scientific.net/AMR.150-151.1790
Citation
H. Li, S. Shi, D. L. Xu, L. J. Zhuge, L. L. Zhang, "Research on the Dissolving Character of Active Si/Al in Fly Ash Activated by Alkali", Advanced Materials Research, Vols. 150-151, pp. 1790-1795, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Wei Li, Qing Guo Tang, Jin Sheng Liang, Fei Wang, Chong Yan Ren
Abstract:The cationic surfactant-octadecyl trimethyl ammonium chloride was added to the mixture of sepiolite powders and water with mechanical...
49
Authors: An Feng Hui, Shi Ju E, Xi Lin Zhu, L.H. Zhu, Jian Bo Cao
Abstract:By researching on the main factors affecting the active zone area strain of electroactive dielectric elastomers, the suitable conditions of...
116
Authors: Ding Yang
Chapter 7: Pollution Control (Air, Water, Solid)
Abstract:This paper analyzes the active coke FGD fundamental principles, structures and current applying situations, and calculates the initial...
1463
Authors: Xin Xin Yi, Fang Wang, Mei Xia Pang, Feng Tan, Jing Hua Qi
Chapter 7: Food Chemistry and Industry
Abstract:The relationship of adsorption characteristic about active carbon and the haze in clarified apple juice was investigated. Particle size and...
1407