Raw materials and chemical composition Bottle glass batches generally consist of 7-12 kinds of raw materials. There are mainly quartz sand, soda ash, limestone, dolomite, feldspar, borax, lead and barium compounds. In addition, there are auxiliary materials such as clarifiers, colorants, decolorants, opacifiers, etc. (see glass manufacturing). Coarse particles of quartz are difficult to melt completely; too fine particles will easily produce scum and dust during the melting process, which will affect the melting and easily block the regenerator of the melting furnace. The suitable particle size is 0.25～0.5mm. In order to use waste glass, cullet is usually added, and the amount is usually 20-60%, up to 90%.
In modern society, people need to use a lot of glass products in their daily lives, and it is no longer possible to get rid of glass. Glass is stable, resistant to strong acids and alkalis, and is hard and durable. It is one of the raw materials required for most important equipment.
Post time: Jan-05-2022