发明名称 |
Method and apparatus for preparing rare earth-activated barium fluorhalide based phosphor |
摘要 |
<p>The present invention provides a method and apparatus for preparing a rare earth-activated barium fluorohalide based phosphor, in which atmospheric states during calcining and during cooling can be optimally adjusted and a cooling rate can be selected in a wide range. In the preparing apparatus of the present invention, a mixture 18 of phosphor materials is calcined by a calcining furnace 10 to form a calcined product, and thereafter, the calcined product is cooled to thereby prepare a rare earth-activated barium fluorohalide based phosphor. A calcining region 12 in which the mixture of phosphor materials can be calcined is provided in the calcining furnace 10, and a portion of the calcining region 12 is connected, via a partition door 30 capable of being opened and closed, to a cooling region 28 in which the calcined product can be cooled, at an outer side of the calcining furnace 10. Further, the method for preparing the rare earth-activated barium fluorohalide based phosphor of the present invention is carried out by using the above-described preparing apparatus. <IMAGE></p> |
申请公布号 |
EP1083211(A2) |
申请公布日期 |
2001.03.14 |
申请号 |
EP20000116435 |
申请日期 |
2000.07.28 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
MATSUMOTO, HIROSHI;IWABUCHI, YASUO;TAKAHASHI, KENJI |
分类号 |
C04B35/64;C01F11/22;C09K11/08;C09K11/61;C09K11/77;(IPC1-7):C09K11/61 |
主分类号 |
C04B35/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|