-
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
-
公开(公告)号：KR1020020019828A
公开(公告)日：2002-03-13
申请号：KR1020000053182
申请日：2000-09-07
CPC classification number: C09K11/595 , C01P2004/03 , C09K11/574 , H01J11/42 , H01J29/20 , Y02B20/181
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法制造等离子显示器或灯的球形绿色荧光粉的方法。 构成：制备球形绿色荧光体粉末（配方Zn2-xSiO4：Mnx）的方法包括以下步骤：通过溶解选自硝酸锌，乙酸锌和氯化锌的锌前驱物制备荧光体粉末的前体溶液，以及 在蒸馏水中选择锰硫化物，氯化锰，乙酸锰和硝酸锰的锰前体，并将105-125％（基于锌）的原硅酸四乙酯（TEOS）溶解在蒸馏水中，用极少量的硝酸 酸和醇，或者通过气相或液相法分散纳米尺寸的SiO 2粉末，其中前体溶液的总浓度为0.02-3M; 将前体溶液注入喷雾器中以产生直径为0.1-100微米的液滴; 将液滴注入高温200-1500℃的管式反应器中。另外，将得到的荧光体粉末氧化或氧化/还原加热至800-1350℃1-5小时。 在公式中，0.011
-
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
-
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
-
公开(公告)号：KR1020000040848A
公开(公告)日：2000-07-05
申请号：KR1019980056585
申请日：1998-12-17
Applicant: 한국화학연구원
CPC classification number: C01G23/047 , C01P2002/90 , C01P2004/64
Abstract: PURPOSE: A process for preparing crystalline titania particles in ambient temperature using sol-gel method is provided to give the maintenance for its origin property in ambient temperature and the stable titania without lowering its activation even in high temperature. CONSTITUTION: A process is to produce crystalline titania particles of anatase and rutile by using metal alkoxide. The process is characterized by comprising the following steps. The metal alkoxide is hydrated with water. The resultant is provided with catalytic inorganic acid in molar ranges of 0.1 to 200 of metal alkoxide/acid to give the desired crystalline ones in ambient temperature. Further, the process is characterized in that the metal alkoxide is used as metal alkoxide compound or the mixture of metal alkoxide and alcohol. In addition, the metal alkoxide is characterized by selecting from a group of tetraethylorthotitanate, titanium tetraisopropoxide and tetrabutylorthotitanate. Also, the hydrating step is characterized by performing it in the condition of 0.001 to 0.25 molar ratios of metal alkoxide/water.
Abstract translation: 目的：提供使用溶胶 - 凝胶法在环境温度下制备结晶二氧化钛颗粒的方法，以便在环境温度和稳定的二氧化钛中保持其起始性能，即使在高温下也不降低其活化。 构成：一种工艺是通过使用金属醇盐生产锐钛矿和金红石的结晶二氧化钛颗粒。 该方法的特征在于包括以下步骤。 金属醇盐与水合。 得到的催化无机酸的摩尔浓度为0.1至200的金属醇盐/酸，以在环境温度下得到所需的结晶。 此外，该方法的特征在于金属醇盐用作金属醇盐化合物或金属醇盐和醇的混合物。 此外，金属醇盐的特征在于选自四甲基钛酸四乙酯，四异丙氧基钛和四丁基钛酸钛。 此外，水合步骤的特征在于在金属醇盐/水的0.001至0.25摩尔比的条件下进行。
-
Patent Agency Ranking
公开(公告)号：KR100424866B1
公开(公告)日：2004-03-27
申请号：KR1020010024034
申请日：2001-05-03
Applicant: 한국화학연구원
Abstract: PURPOSE: A strontium titanate fluorescent substance and its preparation method by the flame spray pyrolysis are provided, to obtain fluorescent substance which is not hollow, and has a nearly spherical shape, a uniform distribution, a perfect crystallinity without post-heating and a good light-emitting characteristic. CONSTITUTION: The strontium titanate fluorescent substance is represented by SrTiO3: PrxAlyGaz, wherein 0.0001
Abstract translation: 目的：提供钛酸锶荧光物质及其通过火焰喷射热解制备的方法，以获得非中空的荧光物质，并且具有接近球形的形状，均匀分布，没有后加热的完美结晶性和良好的光 发射特性。 构成：钛酸锶荧光物质由SrTiO3：PrxAlyGaz表示，其中0.0001≤x≤0.5,0≤y≤0.5和0≤z≤0.5。 该方法包括将Sr和Ti的前体以及活化剂Pr，Al和Ga的前体溶解到蒸馏水中以制备0.02-3M前体溶液的步骤; 将前体溶液注入气溶胶发生器以产生直径为1-100微米的液滴; 并使该液滴在膨胀火焰中干燥，热解，反应和结晶，得到荧光物质粉末。 膨胀火焰的温度优选为1,500-4,00℃。
-
公开(公告)号：KR1020020015503A
公开(公告)日：2002-02-28
申请号：KR1020000048628
申请日：2000-08-22
Applicant: 한국화학연구원
IPC: C09K11/00
CPC classification number: C09K11/7787 , C04B35/6267 , H01J11/42 , H01J29/20 , H05B33/14 , Y02B20/181
Abstract: PURPOSE: Provided is a preparation method of red fluorescent material with monoclinic and cubic phase by using flame spray pyrolysis, wherein sprayed droplet is an individual fluorescent material having perfect spherical shapes with the filled inside and is uniformly distributed without coagulation. The material is used in the plasma display, field emission display and for the lamp in the cathode-ray tube. CONSTITUTION: The above red fluorescent material is represented by the formula 1:(YxGd1-x)2O3:Eu, wherein 0
Abstract translation: 目的：提供通过使用火焰喷射热解法制备具有单斜晶相和立方相的红色荧光材料的方法，其中喷雾液滴是具有完全球形的单个荧光材料，其填充内部并且均匀分布而不凝结。 该材料用于等离子体显示，场发射显示和阴极射线管中的灯。 构成：上述红色荧光体由式1表示：（YxGd1-x）2O3：Eu，其中0 <= x <= 1。 该制备方法包括：将由Y和Gd或其混合物和Eu活化剂组成的荧光体溶解在蒸馏水中制备0.02-3M前体溶液，其中Eu至1mol主体的Eu掺杂浓度为0.5-15mol％ 主体和活化剂选自硝酸盐，乙酸盐和氯化物; 加入1-30重量％的选自LiCl，KCl，NaCl，Li2CO3，Na2CO3，H3BO3或其混合物的熔融剂; 通过将上述前体溶液引入微波炉，空气喷嘴，微波喷嘴和过滤膨胀气溶胶发生器等喷雾机中，使上述物料的液滴直径为0.1-100微米。 将上述液滴通过扩散火焰反应器在1500-3,000℃下; 并将荧光液滴在600-1,500℃下进行热处理，使其成为单斜或立方体。
-
公开(公告)号：KR100376277B1
公开(公告)日：2003-03-17
申请号：KR1020000048628
申请日：2000-08-22
Applicant: 한국화학연구원
IPC: C09K11/00
Abstract: PURPOSE: Provided is a preparation method of red fluorescent material with monoclinic and cubic phase by using flame spray pyrolysis, wherein sprayed droplet is an individual fluorescent material having perfect spherical shapes with the filled inside and is uniformly distributed without coagulation. The material is used in the plasma display, field emission display and for the lamp in the cathode-ray tube. CONSTITUTION: The above red fluorescent material is represented by the formula 1:(YxGd1-x)2O3:Eu, wherein 0
Abstract translation: 目的：提供一种利用火焰喷雾热解法制备单斜晶系和立方晶系红色荧光材料的方法，其中喷雾液滴为单个荧光材料，具有完美的球形，内部填充且均匀分布而不凝固。 该材料用于等离子显示器，场发射显示器和阴极射线管中的灯。 构成：上述红色荧光材料由式1表示：（YxGd1-x）2O3：Eu，其中0≤x≤1。 所述制备方法包括：通过将由Y和Gd或其混合物组成的荧光主体和Eu活化剂溶解在蒸馏水中制备0.02-3M前体溶液，其中Eu与1摩尔主体的掺杂浓度为0.5-15摩尔％ 并且主体和活化剂选自它们的硝酸盐，乙酸盐和氯化物; 添加1-30wt。％的选自LiCl，KCl，NaCl，Li 2 CO 3，Na 2 CO 3，H 3 BO 3或其混合物大于2的熔融剂; 通过将上述前体溶液引入喷雾机如微波炉，空气喷嘴，微波喷嘴和过滤膨胀气溶胶发生器中，使上述材料的液滴具有0.1-100微米的直径; 使上述液滴在1,500-3,000℃通过扩散火焰反应器; 并在600-1,500℃下热处理荧光液滴并使其变成单斜或立方形。
-
公开(公告)号：KR100297809B1
公开(公告)日：2001-10-29
申请号：KR1019980056585
申请日：1998-12-17
Applicant: 한국화학연구원
Abstract: 본 발명은 졸-겔법을 이용한 결정상 티타니아 입자를 상온 제조방법에 관한 것으로서, 더욱 상세하게는 출발물질로서 금속알콕사이드를 이용하여 졸-겔법에 의해 아나타제(anatase) 혹은 루타일(rutile) 등의 결정상 티타니아를 제조하는 방법에서 질산, 염산 등의 산촉매 종류와 농도를 조절하여 상온상태에서 결정상 티타니아 입자를 제조하는 방법에 관한 것이다.
종래 티타니아의 제조방법이 상 제어를 위하여 주로 고온가열조건하에서 수행되는데 반하여 본 발명은 상온에서도 충분히 상 제어가 가능하므로 유리 또는 플라스틱 표면개질을 위한 코팅과 같이 기존방법으로는 한계가 있었던 분야에도 적용이 가능하며, 또한 본 발명에 의하여 상온에서 제조된 아나타제상은 900℃ 이상의 고온에서도 상변화에 의한 비표면적 감소 없이 안정하게 존재하기 때문에 고온 반응용 촉매로서도 유용하게 사용될 수 있다.-
公开(公告)号：KR1020020084922A
公开(公告)日：2002-11-16
申请号：KR1020010024034
申请日：2001-05-03
Applicant: 한국화학연구원
CPC classification number: C09K11/77 , C01P2002/70 , C01P2004/03 , C04B35/46 , C04B35/50 , C04B35/6267 , Y02B20/181
Abstract: PURPOSE: A strontium titanate fluorescent substance and its preparation method by the flame spray pyrolysis are provided, to obtain fluorescent substance which is not hollow, and has a nearly spherical shape, a uniform distribution, a perfect crystallinity without post-heating and a good light-emitting characteristic. CONSTITUTION: The strontium titanate fluorescent substance is represented by SrTiO3: PrxAlyGaz, wherein 0.0001
Abstract translation: 目的：提供钛酸锶荧光物质及其通过火焰喷雾热解制备方法，以获得不中空的荧光物质，具有接近球形，均匀分布，无后加热的完美结晶度和良好的光线 发光特性。 构成：钛酸锶荧光物质由SrTiO3：PrxAlyGaz表示，其中0.0001≤x≤0.5,0≤y≤0.5且0≤z≤0.5。 该方法包括以下步骤：将Sr和Ti的前体以及掺入体（Sr，Ti）的活化剂Pr，Al和Ga的前体溶解到蒸馏水中制备0.02-3M前体溶液; 将前体溶液注入气溶胶发生器中以产生直径为1-100微米的液滴; 并在膨胀火焰中干燥，热解，反应和结晶液滴，得到荧光物质粉末。 优选地，膨胀火焰的温度为1500-4,00℃。
-
-
-
-
-
-
-
-
-
Search Results
97
records
(took 0.023 seconds)
