Method of making carbon dioxide and chlorine free fluoride-based

Glass manufacturing – Processes – Operating under inert or reducing conditions

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65DIG16, 65 321, 501 30, 501 40, C03B 37027, C03C 332

Patent

active

048426318

ABSTRACT:
An improved method of making carbon dioxide and chlorine free fluoride-based glass wherein the atmosphere in the furnace enclosure is sulphur hexafluoride gas at a positive over pressure.

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