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公开(公告)号：KR100458126B1
公开(公告)日：2004-11-20
申请号：KR1020020001626
申请日：2002-01-11
Applicant: 한국화학연구원
Abstract: PURPOSE: Provided are a high efficiency green phosphor which is suitable for long length UV light emitting diode(LE) and actively light emitting liquid crystal display, and a method for producing the same. CONSTITUTION: The green phosphor based on barium strontium silicate, is represented by formula 1: (Ba1-xSrx)2SiO4:Eu2+yMz(wherein M is Ho, Er, Ce, Y or Gd, 0
Abstract translation: 目的：提供一种适用于长尺寸紫外发光二极管（LE）和有源发光液晶显示器的高效绿色荧光粉及其制备方法。 构成：基于硅酸钡锶的绿色磷光体由式1表示：（Ba1-xSrx）2SiO4：Eu2 + yMz（其中M是Ho，Er，Ce，Y或Gd，0
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Patent Agency Ranking
公开(公告)号：KR1020030045499A
公开(公告)日：2003-06-11
申请号：KR1020010076238
申请日：2001-12-04
Applicant: 한국화학연구원
CPC classification number: C01B33/18 , B01J6/008 , C01P2004/32 , C01P2004/61 , C01P2004/62 , C01P2006/12
Abstract: PURPOSE: A silica powder is provided which is economical by using fumed silica as silica raw material, and in which prepared silica powder has completely spherical shape and densified structure, and a method for preparing the silica powder is provided. CONSTITUTION: In a method for preparing silica by spray pyrolysis, the method for preparing spherical shaped silica powder comprises a process (a) of preparing a silica precursor solution of 0.02 to 3 M by dispersing or dissolving nano silica (fumed silica) and tetraethyl orthosilicate (TEOS) into water; a process (b) of producing droplet having a diameter of 0.1 to 100 μm by injecting the precursor solution into sprayer; and a process (c) of obtaining silica by drying and pyrolyzing the droplet in the tubular reactor or flame reactor after injecting the produced droplet into high temperature tubular reactor(200 to 1,500 deg.C) or flame reactor(1,000 to 2,500 deg.C), wherein the nano silica (fumed silica) and tetraethyl orthosilicate (TEOS) are added to water in a weight ratio of 99:1 to 1:99 in the process (a), wherein the method further comprises a posttreatment process of heat treating silica particles obtained from the third process at a temperature of 300 to 1,500 deg.C for 1 to 5 hours, and wherein the sprayer is ultrasonic sprayer, air nozzle sprayer or ultrasonic nozzle unit.
Abstract translation: 目的：提供通过使用气相二氧化硅作为二氧化硅原料经济的二氧化硅粉末，其中制备的二氧化硅粉末具有完全球形和致密结构，并提供了制备二氧化硅粉末的方法。 构成：在通过喷雾热解制备二氧化硅的方法中，制备球形二氧化硅粉末的方法包括通过分散或溶解纳米二氧化硅（热解法二氧化硅）和原硅酸四乙酯制备0.02至3M的二氧化硅前体溶液的方法（a） （TEOS）进入水中; 通过将前体溶液注入喷雾器来制造直径为0.1〜100μm的液滴的工序（b） 以及（c）通过在将所产生的液滴注入高温管式反应器（200-1500℃）或火焰反应器（1000-2,500℃）中之后，通过干燥和热解管式反应器或火焰反应器中的液滴来获得二氧化硅 ），其中在方法（a）中将纳米二氧化硅（热解法二氧化硅）和原硅酸四乙酯（TEOS）以99:1至1:99的重量比加入到水中，其中该方法还包括热处理的后处理过程 二氧化硅颗粒，其在300〜1500℃的温度下从第三工序获得1〜5小时，其中，喷雾器是超声波喷雾器，空气喷嘴喷雾器或超声波喷嘴单元。
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公开(公告)号：KR100497320B1
公开(公告)日：2005-06-28
申请号：KR1020020071875
申请日：2002-11-19
Applicant: 한국화학연구원
IPC: H01L21/02
Abstract: 본 발명은 액적 크기 제어 장치 및 방법에 관한 것으로서, 구체적으로 본 발명은 싸이클론을 액적분산장치에 결합시켜, 일측면에 액적 함유 운반기체 공급부(1)가 위치되고 상부에 미세액적 배출부(4)가 있으며 하부에서 싸이클론 장치(3)와 결합되고 내부 중앙에 축이 있어 여기에 액적 분산판(6)과 액적 충돌판(7)이 부착되어 있는 (이때 분산판은 공급된 액적이 통과할 수 있도록 적어도 하나 이상의 관통공(11)을 가지며, 충돌판은 액적의 유로를 싸이클론 장치로 유도하는 역할을 하며, 중앙축의 내부는 상기 배출부(4)와 연통되는 관이 형성되어 있다) 액적 분산 장치(2), 및 상기 액적 분산 장치와 격벽으로 분리되어 그의 하부에 위치되며 중앙 축에 의해 액적 분산 장치와 연결되고 저부에 거대 액적 유출부(9)를 갖춘 싸이클론 장치(3)를 포함하는 것을 특 징으로 하는 액적 크기 제어 장치에 관한 것으로, 본 발명에 따르면 발생 액적의 크기를 수 미크론 이하로 제어할 수 있으며, 이와 같이 크기가 제어된 액적은 균일한 분포를 가진 미립자의 제조 및 디스플레이 및 반도체 공정에서의 박막 증착 및 에어로졸 에칭 등에 유리하게 사용할 수 있다.
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公开(公告)号：KR100468050B1
公开(公告)日：2005-01-24
申请号：KR1020010076238
申请日：2001-12-04
Applicant: 한국화학연구원
Abstract: PURPOSE: A silica powder is provided which is economical by using fumed silica as silica raw material, and in which prepared silica powder has completely spherical shape and densified structure, and a method for preparing the silica powder is provided. CONSTITUTION: In a method for preparing silica by spray pyrolysis, the method for preparing spherical shaped silica powder comprises a process (a) of preparing a silica precursor solution of 0.02 to 3 M by dispersing or dissolving nano silica (fumed silica) and tetraethyl orthosilicate (TEOS) into water; a process (b) of producing droplet having a diameter of 0.1 to 100 μm by injecting the precursor solution into sprayer; and a process (c) of obtaining silica by drying and pyrolyzing the droplet in the tubular reactor or flame reactor after injecting the produced droplet into high temperature tubular reactor(200 to 1,500 deg.C) or flame reactor(1,000 to 2,500 deg.C), wherein the nano silica (fumed silica) and tetraethyl orthosilicate (TEOS) are added to water in a weight ratio of 99:1 to 1:99 in the process (a), wherein the method further comprises a posttreatment process of heat treating silica particles obtained from the third process at a temperature of 300 to 1,500 deg.C for 1 to 5 hours, and wherein the sprayer is ultrasonic sprayer, air nozzle sprayer or ultrasonic nozzle unit.
Abstract translation: 目的：提供一种通过使用气相二氧化硅作为二氧化硅原料并且其中制备的二氧化硅粉末具有完全球形和致密结构而经济的二氧化硅粉末，并且提供了一种制备二氧化硅粉末的方法。 一种制备球形二氧化硅粉末的方法，其特征在于，包括以下步骤：（a）通过分散或溶解纳米二氧化硅（气相二氧化硅）和原硅酸四乙酯制备0.02至3M的二氧化硅前体溶液 （TEOS）注入水中; 通过将前体溶液注入喷雾器产生直径为0.1至100微米的液滴的过程（b） 和通过在将所产生的液滴注入高温管式反应器（200至1,500℃）或火焰反应器（1,000至2,500℃）中之后干燥和热解管式反应器或火焰反应器中的液滴来获得二氧化硅的方法（c） ），其中在方法（a）中以99:1至1:99的重量比将纳米二氧化硅（热解法二氧化硅）和原硅酸四乙酯（TEOS）加入水中，其中所述方法还包括热处理的后处理过程 二氧化硅颗粒在300-1,500℃的温度下从第三工艺获得1-5小时，并且其中喷雾器是超声波喷雾器，空气喷嘴喷雾器或超声波喷嘴单元。
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公开(公告)号：KR1020030060697A
公开(公告)日：2003-07-16
申请号：KR1020020001626
申请日：2002-01-11
Applicant: 한국화학연구원
CPC classification number: C09K11/7734 , C09K11/7731 , H01L33/502 , Y02B20/181
Abstract: PURPOSE: Provided are a high efficiency green phosphor which is suitable for long length UV light emitting diode(LE) and actively light emitting liquid crystal display, and a method for producing the same. CONSTITUTION: The green phosphor based on barium strontium silicate, is represented by formula 1: (Ba1-xSrx)2SiO4:Eu2+yMz(wherein M is Ho, Er, Ce, Y or Gd, 0
Abstract translation: 目的：提供一种高效率的绿色荧光粉，其适用于长距离紫外发光二极管（LE）和主动发光液晶显示器及其制造方法。 构成：基于硅酸锶钡的绿色荧光体由式1表示：（Ba1-xSrx）2SiO4：Eu2 + yMz（其中M是Ho，Er，Ce，Y或Gd，0
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公开(公告)号：KR1020040043560A
公开(公告)日：2004-05-24
申请号：KR1020020071875
申请日：2002-11-19
Applicant: 한국화학연구원
IPC: H01L21/02
Abstract: PURPOSE: An apparatus for controlling the dimension of liquid-drop is provided to control liquid-drop of various dimensions from several microns to several tens of microns and maintain the liquid-drop of a uniform dimension not greater than several microns by using the characteristics of a cyclone and a dispersion plate and making them into one system. CONSTITUTION: A drop-containing carrier gas supplying part(1) is located in one surface of a drop dispersing unit(2). A fine drop exhausting unit(4) is formed on the drop dispersing unit. A cyclone unit(3) is coupled to the lower part of the drop dispersing unit. A shaft is formed in the inner center of the drop dispersing unit. A drop dispersing plate(6) and a drop colliding plate(7) are attached to the shaft, wherein the dispersion plate has at least one through hole(11) so as to pass supplied drops, the colliding plate induces the drop to the cyclone unit, and a pipe connected to the exhausting unit is formed inside the center shaft. The cyclone unit is isolated from the drop dispersing unit by a partition wall, located under the drop dispersing unit and connected to the drop dispersing unit by the center shaft. A huge drop outflow unit(9) is installed in the lower part of the cyclone unit.
Abstract translation: 目的：提供一种用于控制液滴尺寸的装置，用于控制从几微米到几十微米的各种尺寸的液滴，并通过使用以下特征来维持均匀尺寸不超过几微米的液滴 旋风分离板和分散板，并将其制成一个系统。 构成：液滴分散单元（2）的一个表面设置有液滴载气供给部（1）。 在液滴分散单元上形成细滴排出单元（4）。 旋风单元（3）联接到液滴分散单元的下部。 在液滴分散单元的内部中心形成有轴。 分散板（6）和液滴碰撞板（7）附接到轴上，其中分散板具有至少一个通孔（11），以便通过供应的液滴，碰撞板引起液滴到旋风分离器 单元，并且连接到排气单元的管道形成在中心轴内。 旋风单元通过位于滴分散单元下方的分隔壁与分散单元隔离并通过中心轴连接到分散单元。 在旋风单元的下部安装了巨大的液滴流出单元（9）。
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