| Reaction of Zircon with Sodium Carbonate |
H. S. MAITI*, K. V. G. K. GOKHALE
AND E. C. SUBBARAO
Pages : 41-46
DOI : 10.1080/0371750X.1977.10840641 |
| Abstract |
| Reactions of natural zircon with Na2C03 with mole ratios
ranging from 1: 1 to 1: 2.6 were studied at 800 and 9000C
for periods up to 48 hours. The products of the reaction
were Na2Zr03, Na2Si03 and Na2ZrSiOs. A reaction
mechanism, valid within the range of temperature of this
study, has been proposed on the basis of the relative proportions
of the co-existing phases as a function of composition,
temperature and time. The reaction was initiated with
the formation of Na2ZrSi05 which later reacted with any
excess Na2C03 present resulting in the formation of
Na2Zr03 and Na2Si03• When treated with water,
Na2ZrSi05 remained unaffected while Na2Zr03 was converted
to amorphous hydrated zirconia. |
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