You should attend if you are interested in:

  • Batch decarbonization, bubble formation, and interaction with the glass melt
  • Bubble ascent and glass flow velocities
  • Gas solubility, chemical fining and refining
  • Physical fining
  • Reboil mechanisms
  • Downstream sources of gases and forming bubbles
  • Practical guidelines in case of bubble upset

What you take away:

  • Have a step-by-step approach to detect and resolve bubble problems
  • Understand the many origins of bubbles
  • Comprehend the numerous chemical and physical phenomena that contribute to bubble removal
  • Understand how experimental and numerical tools can help identify and resolve root causes in the event of a bubble crisis

Level of seniority

This training is meant for batch, furnace and quality team members who must deliver good quality glass, support and make decisions in case of a bubble upset. They will get a better understanding of the phenomenon at stake and sharper troubleshooting abilities.

Cristian Hernández


Cristian Hernández graduated as a Materials Engineer from the University of Antioquia, Colombia. Then he obtained a Master’s degree in Metallurgical and Materials Science at the University of Sao Paulo, Brazil. He worked for 8 years as a Glass Science engineer at OI for different plants in South America, supporting them in color changes, glass quality issues, furnace and batch house ramp-ups, raw materials standardization and implementation of new ones. He joined Celsian as a Project leader acting as a supporter and technical advisor.

Johan Lotter


Johan Lotter obtained a master’s degree in chemical engineering from the University of the Witwatersrand. He worked at PFG building glass as a furnace engineer, technical expert, and manager of the technical department of two plants. He developed a large experience in raw materials, melting and floating process and defect analysis. He is now working as a CFD Engineer and trainer at CelSian.

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