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    Method and apparatus for coating electroluminescent phosphor
    6.
    发明专利
    Method and apparatus for coating electroluminescent phosphor 有权

    公开(公告)号：JP3887226B2

    公开(公告)日：2007-02-28

    申请号：JP2001382724

    申请日：2001-12-17

    申请人： オスラム・シルバニア・インコーポレイテッド

    发明人： チャンウェン・ファン ,  デイル・イー・ベンジャミン

    IPC分类号： C09K11/08 ,  H05B33/14 ,  C09K11/00 ,  C09K11/02 ,  C09K11/56

    CPC分类号： C09K11/025 ,  Y10S118/05

    摘要： A process for preparing particles of zinc sulfide-based electroluminescent phosphor having a moisture resistant coating thereon which comprises the steps of selecting a reaction vessel having a given height and a porous disc at the bottom thereof; charging the reaction vessel with phosphor particles and fluidizing the particles by introducing an inert gas into the vessel through the porous disc; heating the reaction vessel to a reaction temperature; introducing a coating precursor into the reaction vessel at a position adjacent the bottom of the vessel but above the disc; introducing a co-reactant into the reaction vessel at a position substantially mid-way of the given height; and maintaining the inert gas flow, the precursor flow and the co-reactant flow for a time sufficient for a reaction to occur and coat the phosphor with the moisture resistant coating. Apparatus for carrying out the process is also disclosed.

    Surface treatment of powder
    10.
    发明专利
    Surface treatment of powder 失效
    粉末表面处理

    公开(公告)号：JPS6169874A

    公开(公告)日：1986-04-10

    申请号：JP19351484

    申请日：1984-09-14

    申请人： Nippon Paint Co Ltd

    发明人： NAKAJIMA KOJI

    IPC分类号： C09D5/03 ,  B01J8/24 ,  B05C19/02 ,  C09B67/20 ,  C09C3/00 ,  C09C3/04

    CPC分类号： B05C19/025 ,  Y10S118/05

    摘要： PURPOSE: To introduce an active group into powder for thorough surface modification, by forming a fluidized bed of the powder by use of ozone gas-contg. air and performing surface treatment of the powder.
    CONSTITUTION: Air is suctioned through an intake 11a for filtration and drying of the air by means of a drier/filter 12 and the air is fed into an ozone generator tube 15 of an ozone generator 14 by means of a blower 13. The ozone-contg. air is blown up from the bottom of a fluidized bed tank 17 through a filter 16 and a perforated plate 18 to form a fluidized bed 19 of powder for surface treatment of the powder. The ozone-contg. air is filtered through a filter 20 and, after absorption of ozone by an ozone filter 21, the air is discharged through an exhaust vent 22. Air from an intake 11b is filtered through a filter 23 and blown up by means of a recovery blower 24 and suspended powder is sent to a recovery cyclone 25 for recovery of the powder and discharge of air through an air outlet 22b.
    COPYRIGHT: (C)1986,JPO&Japio

    摘要翻译： 目的：通过使用臭氧气体形成粉末流化床，将活性基团引入粉末进行彻底的表面改性。 空气和表面处理粉末。 构成：通过进气口11a抽吸空气，通过干燥器/过滤器12对空气进行过滤和干燥，并且通过鼓风机13将空气送入臭氧发生器14的臭氧发生器管15中。 对比 空气从流化床槽17的底部通过过滤器16和多孔板18吹出，以形成用于粉末表面处理的粉末流化床19。 臭氧层 空气通过过滤器20过滤，并且在通过臭氧过滤器21吸收臭氧之后，空气通过排气口22排出。来自进气口11b的空气通过过滤器23过滤，并通过回收鼓风机24 并且将悬浮的粉末送到回收旋风分离器25中以回收粉末并通过出气口22b排出空气。