PROCESS FOR PRODUCING GLASS

摘要

PROBLEM TO BE SOLVED: To provide a process for producing glass, by which high clarifying effect can be obtained without using arsenic or antimony. SOLUTION: The process for producing glass comprises melting a raw material batch after incorporating water into the batch or incorporating water into molten glass and then clarifying the molten glass in an atmosphere having a water vapor partial pressure lower than that of the atmosphere in melting so as to yield glass having aβ-OH value of at least 0.2 mm-1after melting. The clarifying process is preferably performed in a reduced-pressure atmosphere. COPYRIGHT: (C)2008,JPO&INPIT