scholarly journals Hydrothermal reactions of fly ash. [Quarterly report], April 1, 1992--June 31, 1992

1992 ◽  
Author(s):  
P.W. Brown
Keyword(s):  
Fly Ash ◽  
Hydrothermal Reactions

Hydrothermal reactions of fly ash with Ca(OH)2 and CaSO4·2H2O

1997 ◽  
Vol 27 (8) ◽  
pp. 1237-1248 ◽  
Author(s):  
Weiping Ma ◽  
Paul W. Brown
Keyword(s):  
Fly Ash ◽  
Hydrothermal Reactions

Fabrication of Nano Zeolite P from Coal Fly Ash by Combining Alkaline — Fusion and Hydrothermal Reactions

2013 ◽  
Vol 591 ◽  
pp. 126-129 ◽  
Author(s):  
Yong Zai Wang ◽  
Le Wang ◽  
Hong Ming Xu ◽  
Shao Hui Luo
Keyword(s):  
Fly Ash ◽  
Single Phase ◽  
Hydrothermal Reaction ◽  
Coal Fly Ash ◽  
Reaction Products ◽  
Hydrothermal Temperature ◽  
Hydrothermal Reactions ◽  
Alkaline Fusion ◽  
Crystallite Sizes ◽  
Zeolite P

Well-crystallised nanozeolite P has been synthesized from coal fly ash by combined method of alkaline-fusion and hydrothermal reactions. The influence of preparation parameters, such as the proportion of fly ash/NaOH, the hydrothermal reaction temperature and time on the reaction products were investigated by XRD and FESEM. Results indicated that, the optimum conditions for fabrication of a single phase of zeolite P were the mass ratio of fly ash/ NaOH =1/1, fusion temperature at 550°C and hydrothermal temperature at 100°C for 48h .The average crystallite sizes of the zeolite samples are 29.4nm. The obtained products show crystal morphology heterogeneity comprised by various euhedral forms.

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