How Crystallite is used?

How Crystallite is used?

Crystallite is used in all types of soda-lime-silica glass production. The level of Crystallite usage depends on factors such ass glass colour, glass composition and local raw materials. The level of Crystallite is usually expressed as a percentage of the dry sand weight.

In float glass, Crystallite is typically used at 4 to 8% of the dry sand weight. In container glass the amount of Crystallite varies with the colour of the glass being produced, from 4% for cosmetic flint production to 30% of the dry sand weight in amber glass. In fibre glass the level is typically 11% of the dry sand weight and in glass bulbs and tubes 4%.

Use of Crystallite requires adjustments to the batch depending on the raw materials currently being used. Typically, use of Crystallite would reduce the amount of limestone, dolomite and also alumina source such as feldspar. In many cases it is possible for Crystallite to be the sole alumina source, often simplifying the batch recipe.

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