-
1.发明授权Process for reclaiming rare-earth metallic oxide and/or rare-earth metallic oxysulfide phosphors 失效回收稀土金属氧化物和/或稀土金属氧硫化物荧光体的方法
公开(公告)号：US4473488A
公开(公告)日：1984-09-25
申请号：US433080
申请日：1982-10-06
申请人： Heinz Beckerle , Volker Gerstle , Gerhard Mauz
发明人： Heinz Beckerle , Volker Gerstle , Gerhard Mauz
摘要： To a suspension of rare-earth phosphors and sulfidic or selenidic phosphors there is added about 1 to 2% of the amount of hypohalogenite which would be necessary to convert the entire sulfidic or selenidic chalcogenide phosphor into a soluble sulfate and/or selenate. When acidifying the dispersion to which hypohalgenite has been added, to a pH value of preferably between 1.5 and 2, a sedimentation of elementary sulphur and/or selenium forms and becomes attached to the sulfidic and/or selenidic phosphor solids, thus causing these phosphor solids to form sediment. The supernatant suspension containing the rare-earth phosphor is then decanted, and the rare-earth phosphor is reclaimed from the suspension.The disclosed reclaiming process is particularly suitable for decontaminating phosphor mixtures for use in manufacturing color television cathode-ray tubes.
摘要翻译： 向稀土荧光体和硫化物或硒荧光体的悬浮液中加入约1-2％的次卤酸盐，这将是将整个硫化物或硒化硫族化物荧光体转化为可溶性硫酸盐和/或硒酸盐所必需的。 当将已加入次卤酸盐的分散体酸化至pH值优选为1.5至2时，基本硫和/或硒的沉淀物形成并附着到硫化物和/或硒化磷光体固体上，从而导致这些荧光体固体 形成沉积物。 然后将含有稀土荧光体的上清液悬浮液倾析，并从悬浮液中回收稀土荧光体。 所公开的回收方法特别适合用于制造彩色电视阴极射线管的净化荧光体混合物。
-
公开(公告)号：US4409306A
公开(公告)日：1983-10-11
申请号：US355018
申请日：1982-03-02
申请人： Volker Gerstle , Gerhard Mauz , Rolf Zondler
发明人： Volker Gerstle , Gerhard Mauz , Rolf Zondler
CPC分类号： G03F7/04 , H01J29/225 , Y10S430/11 , Y10S430/114
摘要： Method of preparing a phosphor suspension by mixing a photosensitive material, a photosensitizer, and a phosphor for the purpose of forming a photosensitive film. The photosensitizer in the suspension is a chromic-acid solution.With such a phosphor suspension, a firmly adhering, uniform and compact phosphor film can be formed on the screen substrate. In addition, the phosphor areas obtained by this method have very sharp boundaries.
摘要翻译： 为了形成感光膜，通过混合感光材料，光敏剂和荧光体制备荧光体悬浮液的方法。 悬浮液中的光敏剂是铬酸溶液。 通过这样的荧光体悬浮液，能够在屏幕基板上形成牢固粘合，均匀且致密的荧光体膜。 此外，通过该方法获得的荧光体区域具有非常清晰的边界。
-
公开(公告)号：US4889781A
公开(公告)日：1989-12-26
申请号：US196855
申请日：1988-05-19
申请人： Volker Gerstle , Gerhard Mauz
发明人： Volker Gerstle , Gerhard Mauz
CPC分类号： H01J9/2278
摘要： During the formation of a black-matrix layer on the inside surface of a faceplate of a color picture tube, the development of the photoresist coating takes place in an atmosphere with a relative humidity of between about 80-100% and at a temperature of between about 30.degree.-50.degree. C.
摘要翻译： 在彩色显像管的面板的内表面上形成黑矩阵层期间，光致抗蚀剂涂层的发展在相对湿度介于约80-100％之间的温度下进行， 约30°-50℃
-
-
搜索结果
3 条记录 (耗时 0.013 秒)
