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公开(公告)号：KR1020020015504A
公开(公告)日：2002-02-28
申请号：KR1020000048629
申请日：2000-08-22
IPC: C09K11/08
CPC classification number: C09K11/7792 , C04B35/6267 , C09K11/7786 , H01J11/42 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: Provided is a preparation method of BAM-based blue fluorescent material by spray pyrolysis of the precursors after optimizing their composition. The above material has spherical shape with the filled inside and has few defective surfaces even without the use of solvent or colloids like conventional material. The material of the invention has the optimized powder characteristics showing excellent fluorescence and is used in plasma display. CONSTITUTION: The blue fluorescent material is represented by the formula 1:Ba(a)Mg(c)Al(d)O(a+b+c+3/2d):Eub, wherein 0.5
Abstract translation: 目的：提供一种基于BAM的蓝色荧光材料的制备方法，通过前体的喷雾热解优化其组成。 上述材料具有填充内部的球形形状，并且即使不使用像常规材料的溶剂或胶体，也具有少量缺陷表面。 本发明的材料具有显示优异荧光的优化粉末特性，并用于等离子显示。 构成：蓝色荧光材料由式1表示：Ba（a）Mg（c）Al（d）O（a + b + c + 3 / 2d）：Eub，其中0.5 <= a <= 1.5,0
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公开(公告)号：KR1020010038293A
公开(公告)日：2001-05-15
申请号：KR1019990046218
申请日：1999-10-23
Applicant: 한국과학기술원
IPC: C09K11/00
CPC classification number: C09K11/7787 , C01P2004/03 , C04B35/505 , C04B35/6267 , C04B2235/3225 , Y02B20/181
Abstract: PURPOSE: Provided is a process for producing a multicomponent oxide phosphor for a plasma display, a field emission display, a cathode ray tube, and a lamp by a spray pyrolysis adding flux thereto. CONSTITUTION: The process comprises the steps of: adding the flux to a precursor solution of the oxide phosphor to obtain a spray solution, wherein the precursor solution of the oxide phosphor is obtained by dissolving a host and an activator doping the host in water; spraying the spray solution in the form of droplets having a diameter of 1-20micrometer by using a filter expansion aerosol generator or an ultrasonic spray pyrolysis apparatus; converting the droplets containing the flux into the phosphor particles by drying, decomposing, reacting, and crystallizing the droplets in a tube reactor of the filter expansion aerosol generator or the ultrasonic spray pyrolysis apparatus. The multicomponent oxide phosphor is represented by the formula (YxGd1-x)2O3:Eu, wherein x is 0 or 1.
Abstract translation: 目的：提供一种用于等离子体显示器，场致发射显示器，阴极射线管和灯的多组分氧化物荧光体的制造方法，其通过喷雾热分解添加助焊剂。 方法：该方法包括以下步骤：将助熔剂加入到氧化物荧光粉的前体溶液中以获得喷雾溶液，其中氧化物荧光体的前体溶液通过将主体和活化剂掺杂在水中而获得; 通过使用过滤膨胀气溶胶发生器或超声波喷雾热解装置，以直径为1-20微米的液滴形式喷洒喷雾溶液; 通过在过滤膨胀气溶胶发生器或超声波喷雾热解装置的管式反应器中干燥，分解，反应和结晶液滴，将含有助熔剂的液滴转化成荧光体颗粒。 多组分氧化物荧光体由式（YxGd1-x）2O3：Eu表示，其中x为0或1。
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公开(公告)号：KR1020000073329A
公开(公告)日：2000-12-05
申请号：KR1019990016555
申请日：1999-05-10
Applicant: 한국과학기술원
IPC: C09K11/00
CPC classification number: C09K11/7734 , C01P2004/03 , C04B35/6267 , H01J11/42 , H01J29/20 , H05B33/14 , Y02B20/181
Abstract: PURPOSE: A process of preparing aluminate series multicomponent oxide phosphors by a spray thermal decomposition method for spraying fine droplets of a mixture solution using an aerosol generator and manufacturing fine powder by drying and thermal decomposition are provided which produce phosphors causing no coagulation and having crystallinity and luminescence characteristics. CONSTITUTION: The process for producing the titled phosphors comprises preparing 0.02 to 0.2M oxide phosphor particle precursor solution by dissolving each host and an activator that is poured in the host as a doping material in distilled water; spraying fine droplets of the precursor solution of obtained oxide phosphor particles with a diameter of 1 to 20 micrometer using a filter expansion aerosol generator or an ultrasonic wave thermal decomposition apparatus; and converting the droplets to phosphor particles by drying, decomposition, reaction and crystallization of the droplets in the ultrasonic wave thermal decomposition apparatus.
Abstract translation: 目的：提供一种通过喷雾热分解方法制备铝酸盐系列多组分氧化物荧光体的方法，用于使用气溶胶发生剂喷雾混合溶液的微小液滴并通过干燥和热分解制造细粉末，其产生不引起凝结并具有结晶性的荧光体， 发光特性。 构成：制备标题荧光体的方法包括通过将每种宿主和作为掺杂材料浇注在宿主中的活化剂溶解在蒸馏水中制备0.02至0.2M氧化物荧光体颗粒前体溶液; 使用过滤膨胀气溶胶发生器或超声波热分解装置喷射直径为1至20微米的所得氧化物荧光体颗粒的前体溶液的细小液滴; 并通过超声波热分解装置中的液滴的干燥，分解，反应和结晶将液滴转换成荧光体颗粒。
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公开(公告)号：KR1020000066595A
公开(公告)日：2000-11-15
申请号：KR1019990013819
申请日：1999-04-19
Applicant: 한국과학기술원
IPC: C09K11/00
CPC classification number: C09K11/025 , C04B35/6267 , C09K11/7787 , Y02B20/181
Abstract: PURPOSE: Multicomponent system is excellent luminous efficiency, is increased stability of fluorescent substance particle to electric current remarkably due to have spherical uniform shape, size without agglutination and the size is small. CONSTITUTION: A process for complex fluorescent substance by colloid spraying pyrolysis method comprises the steps of: obtaining fluorescent substance particle through drying, dissolution and crystallization process from droplet inserted in reactor, after inflowing droplet of 3 to 10micrometer to tubular reactor; manufacturing precursor solution of fluorescent substance particle by dissolving material component with 0.02 to 1.2M concentration, stabilizing by crystallizing fluorescent substance in gaseous using filter in filter expansion aerosol generator(FEAG); coating fluorescent substance particle by manufacturing colloid solution by spraying and dissolving the fluorescent substance particle in distilled water of 0.03 to 3.24M concentration, putting to coating solution containing activator; obtaining complex fluorescent substance through drying, dissolution reaction and crystallization process from droplet inflowed in reactor, stabilizing by crystallizing complex fluorescent substance in gaseous using ultrasonic nebulizer, inflowing droplet of 3 to 10micrometer to tubular reactor; treating with heat to activate particle and grow crystallization.
Abstract translation: 目的：多组分体系发光效率优良，由于具有球形均匀，尺寸无凝集，体积小，荧光物质颗粒对电流的稳定性明显提高。 构成：通过胶体喷雾热解法制备复杂荧光物质的方法，包括以下步骤：在将3〜10微米的微滴流入管式反应器后，通过干燥，溶解和结晶过程获得荧光物质颗粒; 通过溶解0.02至1.2M浓度的材料成分制造荧光物质颗粒的前体溶液，通过在过滤膨胀气溶胶发生器（FEAG）中使用过滤器在气体中结晶荧光物质进行稳定化; 通过将荧光物质颗粒喷雾并溶解在0.03至3.24M浓度的蒸馏水中制成胶体溶液来涂布荧光物质颗粒，放入含有活化剂的涂布溶液中; 通过干燥，溶解反应和从反应器中流入的液滴的结晶过程获得复杂的荧光物质，通过使用超声雾化器，3至10微米的管式反应器的流入液滴使结晶复合荧光物质稳定化。 用热处理以活化颗粒并生长结晶。
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公开(公告)号：KR1019980051472A
公开(公告)日：1998-09-15
申请号：KR1019960070365
申请日：1996-12-23
Applicant: 한국과학기술원
IPC: C01F11/18
Abstract: 본 발명은 고농도의 수산화칼슘 현탁액으로부터 입방영 탄산칼슘 입자를제조하는 방법에 관한 것으로서, 좀더 상세하게는 천연의 석회석 덩어리를 고온에서 소성시키고 나오는 산화칼슘을 물에서 수화시켜 수산화칼슘 현탁액을 제조하고 이를 소성과정에서 발생하는 CO
2 가스와 반응시켜 탄산칼슘 입자를 제조는 탄산가스화법에서, 산화칼슘의 수화반응을 조절함으로서 기존의 공정보다 3배정도의 고농도에서 입방형 탄산칼슘을 다량으로 제조하는 방법에 관한 것이다.
기존의 공정에서는 수산화칼슘 기준으로 50g/11 이하의 농도에서 입방형입자들이 제조되고 50g/1l이상의 농도에서는 끝이 뾰족하고 크기가 1마이크론이상인 방추형 입자들이 제조되나, 본발명에 의하면 산화칼슘의 수화온도를 기존의 50℃이상에서 35℃ 이하로 낮추어 줌으로써 고농도의 수산화칼슘 현탁액에서 응집이 적은 입방형의 탄산칼슘 입자를 제조할 수 있다.-
Patent Agency Ranking
公开(公告)号：KR100398060B1
公开(公告)日：2003-09-19
申请号：KR1020000048629
申请日：2000-08-22
IPC: C09K11/08
Abstract: PURPOSE: Provided is a preparation method of BAM-based blue fluorescent material by spray pyrolysis of the precursors after optimizing their composition. The above material has spherical shape with the filled inside and has few defective surfaces even without the use of solvent or colloids like conventional material. The material of the invention has the optimized powder characteristics showing excellent fluorescence and is used in plasma display. CONSTITUTION: The blue fluorescent material is represented by the formula 1:Ba(a)Mg(c)Al(d)O(a+b+c+3/2d):Eub, wherein 0.5
Abstract translation: 目的：本发明提供了一种基于BAM的蓝色荧光材料的制备方法，通过在优化其组成之后喷雾热解前体。 上述材料具有球形，内部填充并且即使不使用溶剂或胶体（如常规材料）也具有很少的有缺陷的表面。 本发明的材料具有优化的粉末特性，显示出优异的荧光并用于等离子显示器。 构成：蓝色荧光材料由式1表示：Ba（a）Mg（c）Al（d）O（a + b + c + 3 / 2d）：Eub，其中0.5≤a≤1.5， 0
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公开(公告)号：KR100376276B1
公开(公告)日：2003-03-17
申请号：KR1020000053182
申请日：2000-09-07
Abstract: PURPOSE: Provided is a process for producing spherical green phosphor powder for a plasma display or a lamp by a spray-pyrolysis method optimizing the composition of precursors. CONSTITUTION: The process for producing the spherical green phosphor powder(formula, Zn2-xSiO4:Mnx) comprises the steps of: preparing a precursor solution of the phosphor powder by dissolving a zinc precursor selected from zinc nitrate, zinc acetate, and zinc chloride and a manganese precursor selected from manganese sulfide, manganese chloride, manganese acetate, and manganese nitrate in distilled water and dissolving 105-125%(based on the zinc) of tetraethyl ortho-silicate(TEOS) in distilled water with a very small amount of nitric acid and alcohol or dispersing nano-sized SiO2 powder, produced by a gas or liquid phase method, in the solution, wherein the total concentration of the precursor solution is 0.02-3M; injecting the precursor solution into a sprayer to generate droplets having a diameter of 0.1-100 micrometer; injecting the droplets into a tube type reactor with a high temperature of 200-1500deg.C: additionally, oxidation- or oxidation/reduction-heating the obtained phosphor powder at 800-1350deg.C for 1-5hours. In the formula, 0.011
Abstract translation: 目的：提供一种通过优化前体组成的喷雾热解方法生产用于等离子显示器或灯的球形绿色荧光体粉末的方法。 构成：球形绿色荧光体粉末（式Zn2-xSiO4：Mnx）的制造方法包括以下步骤：通过溶解选自硝酸锌，乙酸锌和氯化锌的锌前体，制备荧光粉的前体溶液和 在蒸馏水中选择硫化锰，氯化锰，醋酸锰和硝酸锰的锰前体，并且在蒸馏水中溶解105-125％（以锌计）的原硅酸四乙酯（TEOS）和极少量的硝酸 酸和醇的溶液中，或者将通过气相或液相法生产的纳米尺寸的SiO 2粉末分散在溶液中，其中前体溶液的总浓度为0.02-3M; 将前体溶液注入喷雾器以产生直径为0.1-100微米的液滴; 将液滴注入200-1500℃高温的管式反应器中。C：另外，将得到的荧光粉粉末在800-1350℃氧化或氧化/还原 - 加热1-5小时。 在该公式中，0.011
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公开(公告)号：KR100371053B1
公开(公告)日：2003-02-05
申请号：KR1019990013819
申请日：1999-04-19
Applicant: 한국과학기술원
IPC: C09K11/00
Abstract: PURPOSE: Multicomponent system is excellent luminous efficiency, is increased stability of fluorescent substance particle to electric current remarkably due to have spherical uniform shape, size without agglutination and the size is small. CONSTITUTION: A process for complex fluorescent substance by colloid spraying pyrolysis method comprises the steps of: obtaining fluorescent substance particle through drying, dissolution and crystallization process from droplet inserted in reactor, after inflowing droplet of 3 to 10micrometer to tubular reactor; manufacturing precursor solution of fluorescent substance particle by dissolving material component with 0.02 to 1.2M concentration, stabilizing by crystallizing fluorescent substance in gaseous using filter in filter expansion aerosol generator(FEAG); coating fluorescent substance particle by manufacturing colloid solution by spraying and dissolving the fluorescent substance particle in distilled water of 0.03 to 3.24M concentration, putting to coating solution containing activator; obtaining complex fluorescent substance through drying, dissolution reaction and crystallization process from droplet inflowed in reactor, stabilizing by crystallizing complex fluorescent substance in gaseous using ultrasonic nebulizer, inflowing droplet of 3 to 10micrometer to tubular reactor; treating with heat to activate particle and grow crystallization.
Abstract translation: 用途：多组分体系具有优良的发光效率，由于具有球形均匀的形状，尺寸没有凝集且尺寸小，因此荧光物质颗粒对电流的稳定性显着提高。 本发明公开了一种胶体喷雾热解法制备复合荧光物质的方法，包括以下步骤：通过干燥，溶解和结晶过程从插入反应器的液滴中获得荧光物质颗粒，流入3-10微米的液滴到管式反应器中; 通过溶解具有0.02-1.2M浓度的材料成分来制造荧光物质颗粒的前体溶液，通过使用过滤器膨胀气溶胶发生器（FEAG）中的过滤器使气体中的荧光物质结晶来稳定化; 通过将荧光物质颗粒喷雾并溶解在0.03至3.24M浓度的蒸馏水中制备胶体溶液来涂覆荧光物质颗粒，放入含有活化剂的涂布溶液中; 通过干燥，溶解反应和结晶过程从反应器中流入的液滴中获得复合荧光物质，通过使用超声波雾化器使复杂的荧光物质在气态下结晶稳定，将3-10微米的液滴流入管式反应器; 用热处理以激活颗粒并生长结晶。
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公开(公告)号：KR100309707B1
公开(公告)日：2001-09-26
申请号：KR1019990046218
申请日：1999-10-23
Applicant: 한국과학기술원
IPC: C09K11/00
Abstract: 본발명은제조하려는산화물형광체의전구체용액에융제를첨가하여분무용액을수득한다음, 미세한액적으로분무시키고, 건조와열분해에의해형광체입자로전환시키는, 융제가도입된분무열분해법에의하여플라즈마디스플레이, 전계방출형디스플레이및 음극선관(CRT)과램프용으로널리사용될수 있는다성분계산화물형광체를제조하는방법및 그로부터제조된다성분계산화물형광체에관한것이다. 본발명에서는제조하려는다성분계산화물형광체의양론비에맞도록모체(host) 및전기모체에도핑물질로들어가는활성제(activator)를물에용해시킨산화물형광체의전구체용액에융제를첨가하여분무용액을수득한다음, 필터액적발생장치(filter expansion aerosol generator, FEAG) 또는초음파분무열분해장치를이용하여융제가포함된액적으로분무시키고나서, 반응기안으로들어온액적을건조-분해-반응-결정화시켜형광체입자로전환시키므로써산화물형광체를제조한다. 본발명에의하면, 반응중 융제가용융됨에따라입자간의접촉이크게되어짧은체류시간내에형광체결정의성장이이루어질수 있을뿐만아니라, 활성제의분산및 활성화가용이하게되어저온에서도높은발광특성을가지는형광체를직접제조할수 있다.
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公开(公告)号：KR100309706B1
公开(公告)日：2001-09-26
申请号：KR1019990046219
申请日：1999-10-23
Applicant: 한국과학기술원
IPC: C09K11/00
Abstract: 본발명은알루미늄이소프로폭사이드를물과반응시키고소량의질산을첨가하여수산화알루미늄콜로이드용액을생성시킨다음, 이콜로이드용액을이용하여분무열분해법에의해알루미네이트계열의형광체를제조하는방법및 그로부터제조되는알루미네이트계열형광체에관한것이다. 본발명에서는알루미늄이소프로폭사이드를 80 내지 100℃의물과반응시키고, 1 내지 20부피% 이하의농도가되도록질산을첨가하여첨가하여수산화알루미늄콜로이드용액을생성시킨다음, 전기콜로이드용액에제조하려는알루미네이트계열의형광체의양론비에맞도록모체(host) 및전기모체를도핑하는활성제(activator)를첨가하여 0.02 내지 2.0M 농도의전구체용액을수득한다음, FEAG 또는초음파분무열분해장치를이용하여액적을분무시키고나서, 반응기안으로들어온액적을건조-분해-반응-결정화의과정에의하여입자로전환시켜알루미네이트계열의형광체를제조한다. 본발명에의하면, 수용성염으로부터제조된형광체보다결정성이증가하고입자들사이의응집도전혀일어나지않으며구상의형태도완벽히유지되는알루미네이트계열의형광체를낮은열처리온도에서보다간단한공정에의하여제조할수 있다.
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