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Dissolution of Polydisperse Silica Grains in Glass Melts–Analysis
Author(s) -
Choudhary Manoj K.
Publication year - 1990
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1990.tb06715.x
Subject(s) - dissolution , log normal distribution , materials science , particle size distribution , mineralogy , borosilicate glass , mass transfer , particle size , particle (ecology) , silica glass , thermodynamics , metallurgy , chemistry , composite material , mathematics , geology , physics , statistics , oceanography
By combining population balance with mass‐transfer‐controlled dissolution, a formulation is developed to analyze the dissolution of polydisperse silica grains in glass furnaces. For an initial lognormal distriution of particle sizes, the change in the distribution with respect to a modified time scale is expressed analytically. This paper shows how the formulation can be combined with time‐temperature data along various flow path lines in a glass melter to calculate the extent of dissolution in the melter. Calculated results are presented on the dissolution of polydisperse silica grains in a glass melter for which the information on path lines was obtained by using a three‐dimensional mathematical model for flow and heat transfer. The effects of maximum particle size of a truncated distribution and the standard deviation on the extent of dissolution are examined.