Process for the production of glass
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United States of America Patent
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Oct 3, 1989
Issued Date -
N/A
app pub date -
Oct 17, 1988
filing date -
Aug 30, 1984
priority date (Note) -
Expired
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Abstract
A process for the production of a glass by the vacuum melting method using silica as a raw material is disclosed, comprising filing a silica fine powder in a suitable vessel, heating it in the presence of an accelerator for phase conversion to obtain a porous formed body consisting of a cristobalite phase, and then heating and melting the formed body in vacuo. According to the present invention, a transparent and active glass having a high quality can be produced at an inexpensive cost.
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