专利检索 ap:("MATSUSHITA ELECTRIC IND CO LTD") AND inv:"FUJIWARA KENJI" 第 1 页

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发明公开
METHOD AND UNIT FOR REGENERATION OF SOLUTION FOR CLEANING GLASS, METHOD AND UNIT FOR CLEANING SILICATE GLASS, AND CATHODE-RAY TUBE 审中-公开
标题翻译：的方法和装置，用于再生用于清洁玻璃，方法和装置的解玻璃清洗和二氧化硅的阴极射线管

公开(公告)号：EP1029833A4

公开(公告)日：2003-08-20

申请号：EP99938601

申请日：1999-08-23

申请人： MATSUSHITA ELECTRIC IND CO LTD

发明人： FUJIWARA KENJI , YATOH HISANORI , GOTOH MASAO , SASADA JUICHI , YAMAUCHI MASANORI , TATENUMA KATSUYOSHI , ARAI OSAMU , TAGUCHI TAKUJI

IPC分类号： C01B7/19 , C03C15/00 , C03C23/00

CPC分类号： C01B7/195 , C03C15/00 , C03C23/0075

摘要： A treatment solution (2) containing fluoride is added to a cleaning solution (1) drained from a cleaning tank (11). Fluoride is allowed to react with fluorosilicic acid in the cleaning solution to settle a precipitate (4) containing fluorosilicate, and the precipitate (4) is removed. The cleaning solution regenerated in a regeneration apparatus (10) is again returned to the cleaning tank (11), and used as a cleaning solution for a CRT panel (20).