Foam control method for vacuum refining of glassy materials

Details Foam control method for vacuum refining of glassy materials Foam control method for vacuum refining of glassy materials

C - Chemistry, Metallurgy

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C03B 5/225 (2006.01) C03B 3/02 (2006.01) C03B 5/04 (2006.01) C03B 5/12 (2006.01) C03B 5/20 (2006.01) C03C 1/00 (2006.01)

Patent

CA 1275572

ABSTRACT In a process for refining molten glass or the like by vacuum, the collapse of foam is accelerated by depositing foam breaking substances onto the foam. The foam breaking substances include water, alkali metal compounds such as sodium hydroxide or sodium carbonate, and solutions of such compounds.

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