<p>Process for refining a glass melt for a glass-ceramic green glass involving preparation of a glass batch based on a LiAl silicate (LAS) system with addition of Sn oxide as refining agent (sic) in quantity less than 0.4 wt.% instead of As and/or Sb as refining agent, holding of the glass batch for the minimum temperature at a mean temperature as defined by a formula, and melting of the mixture and refining of the melt at a temperature less than 1700[deg] C (sic) without the use of special high temperature refining aggregate. An independent claim is included for a device for carrying out the process.</p>
申请公布号
EP1757564(A1)
申请公布日期
2007.02.28
申请号
EP20060017122
申请日期
2006.08.17
申请人
SCHOTT AG
发明人
SCHMITT, STEFAN;SCHMIDBAUER, WOLFGANG;SIEBERS, FRIEDRICH;RODEK, ERICH;BEST, REINER;LAUTENSCHLAEGER, GERHARD;BLEI, HORST;OEHLER, JOACHIM;ILLING-ZIMMERMANN, PETRA