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Leached chrysotile asbestos : characterization, leaching mechanism and use in the synthesis of zeolites

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Leached chrysotile asbestos : characterization, leaching mechanism and use in the synthesis of zeolites

Vaillancourt, Anne (1991) Leached chrysotile asbestos : characterization, leaching mechanism and use in the synthesis of zeolites. Masters thesis, Concordia University.

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Abstract

The work presented in this thesis is concerned with the transformation of the raw asbestos mineral to an intermediate material which is used for the synthesis of zeolites which are health safe and have wide applications in industry. First, a complete indexation of the X-ray diffraction pattern of chrysotile was proposed. This was followed by the use of techniques such as X-ray diffraction and bulk density measurements for the study of the mechanism of transformation of chrysotile to amorphous silica hemihydrate. In the second part, three types of zeolites were synthesized (Na-Y, Na-X and Na-A) using as starting material both silica gel (conventional method) and leached asbestos (new method). In a kinetic study of the crystallization of Na-A zeolite, it was found that leached asbestos is clearly more efficient than silica gel for the preparation of zeolites

Divisions:Concordia University > Faculty of Arts and Science > Chemistry and Biochemistry
Item Type:Thesis (Masters)
Authors:Vaillancourt, Anne
Pagination:xvi, 257 leaves : ill. (some mounted) ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.Sc.)
Program:Dept. of Chemistry
Date:1991
Thesis Supervisor(s):Le Van Mao, Raymond
ID Code:29
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:09
Last Modified:08 Dec 2010 10:12
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