Raw materials and melting - Introductory training (March 2024)

by CelSian Academy

A high-quality glass melt comes from a well-prepared batch. This course covered the initial steps of glass production, from the mineralogy and selection of raw materials to the formation of a melt. The sources and pre-processing of raw materials were presented. Batching operations and means to prevent segregation were discussed. The critical influence of the raw material choice on batch-to-melt conversion, kinetics, energy consumption, and process emissions was emphasized.

Contents:

• Characteristics of the classical raw materials used in the glass industry: chemical composition, grain sizes
• Batch handling, segregation and charging methods
• Cullet use, market, and processing
• Benefits and drawbacks related to the use of recycled cullet
• Influence of raw materials on glass redox and quality
• Batch composition and melting energy
• Melting reactions and kinetics