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公开(公告)号:KR100132278B1
公开(公告)日:1998-04-14
申请号:KR1019930031761
申请日:1993-12-30
IPC: C09K11/08
Abstract: A mixture of calcium oxide or magnesium oxide and tungsten trioxide powder was hydrothermalized at 300-450 deg.C for 30-90 hours in NaOH or KOH solution. In the hydrothermalization, a crystalline calcium tungstate or a magnesium tungstate fluorescent material is formed in NaOH solution and more reaction time is necessary in case of KOH solution.
Abstract translation: 将氧化钙或氧化镁和三氧化钨粉末的混合物在NaOH或KOH溶液中在300-450℃水热化30-90小时。 在水热法中,在NaOH溶液中形成结晶的钨酸钙或钨酸镁荧光物质,在KOH溶液的情况下需要更多的反应时间。