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Title: Acetic acid leaching of magnesia from magnesite via calcination
Authors: Demirbas, Ayhan
Keywords: Magnesite;Magnesia;Magnesium acetate;Calcination;Dissolution
Issue Date: Mar-2006
Publisher: CSIR
IPC Code: C04B2/00
Abstract: In this study, magnesite mineral was first calcinated between 800-1100 K for an hour and dissolved in acetic acid solutions. The effects of temperature, solid-to-liquid ratio, reaction time, stirring speed and acid concentration on the dissolution rate of magnesia in acetic acid were investigated. It was observed that the dissolution of magnesia increased with increasing temperature, stirring speed, reaction time and acid concentration and decreased with increase in solid-to-liquid ratio. The dissolution process is controlled by pseudo first-order reaction rate. Activation energy for the reaction was calculated as 8.78 (kJ/mol).
Page(s): 135-138
ISSN: 0975-0991 (Online); 0971-457X (Print)
Appears in Collections:IJCT Vol.13(2) [March 2006]

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