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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：KR100390775B1
公开(公告)日：2003-07-10
申请号：KR1020000075656
申请日：2000-12-12
Applicant: 한국화학연구원
IPC: C09K11/08
Abstract: PURPOSE: A method for preparing a red fluorescent substance for PDP by spray pyrolysis and a red fluorescent substance for PDP prepared by the method are provided, to improve the shape of fluorescent substance powder and the brightness. CONSTITUTION: The method comprises the steps of dissolving a precursor which composes a fluorescent body capable of being dissolved in an aqueous alcohol, an active precursor doping the body and flux whose ratio of metal halides to carbonates is 1:0.1-40 by weight, into distilled water, respectively, to prepare 0.02-2 M fluorescent substance particle precursor solution; injecting the fluorescent substance particle precursor solution into a spraying machine to generating a liquid drop with a diameter of 0.1-100 micrometers; and injecting the liquid drop into a reactor of 200-1,500 deg.C to prepare a powdered fluorescent substance. The fluorescent substance is represented by (YxGd(1-x-y))BO3:Euy, wherein 0
Abstract translation: 目的：提供一种通过喷雾热解制备用于PDP的红色荧光物质和通过该方法制备的用于PDP的红色荧光物质的方法，以改善荧光物质粉末的形状和亮度。 构成：该方法包括以下步骤：将构成能够溶解在含水醇中的荧光体的前体，掺入该体的活性前体和金属卤化物与碳酸盐的重量比为1:0.1-40的熔剂溶解成 蒸馏水分别制备0.02-2M的荧光物质颗粒前体溶液; 将所述荧光物质粒子前体溶液注入喷雾机中，产生直径为0.1〜100微米的液滴; 并将液滴注入200-1,500℃的反应器中以制备粉末荧光物质。 荧光物质由（YxGd（1-x-y））BO3：Euy表示，其中0≤x≤1,0.01≤y≤0.1。
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公开(公告)号：KR1020030033864A
公开(公告)日：2003-05-01
申请号：KR1020010066033
申请日：2001-10-25
Applicant: 한국화학연구원
IPC: C09K11/78
CPC classification number: C09K11/7794 , C09K11/7786 , H01L33/502 , Y02B20/181
Abstract: PURPOSE: Provided is a tungsten-based red phosphor used for a UV LED and an active luminescent LCD, which has excellent luminescent brightness by doping europium and samarium to a tungsten-based oxide matrix. CONSTITUTION: The tungsten-based red phosphor represented by the formula: (M(WO4)y:Euz,Smx) is produced by adding europium oxide as an activator and samarium oxide as an energizer to the tungsten-based oxide matrix. The phosphor has a strong absorption peak in the wavelength range of 400-410nm. In the formula, M is at least one or two metal elements selected from Li, Na, K, Ba, Ca, Mg, and Sr and 0.001
Abstract translation: 目的：提供一种用于UV LED和有源发光LCD的钨基红色荧光体，其通过将铕和钐掺杂到钨基氧化物基体上具有优异的发光亮度。 构成：通过将氧化铕作为活化剂和氧化钐作为增能剂加入到钨基氧化物基质中，由式（M（WO4）y：Euz，Smx）表示的钨基红色荧光体是产生的。 荧光体在400-410nm的波长范围内具有很强的吸收峰。 在该式中，M是选自Li，Na，K，Ba，Ca，Mg和Sr中的至少一种或两种金属元素，0.001≤x≤0.3,0.5≤y≤3,0.01≤ ž<= 0.9。
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公开(公告)号：KR1020020089633A
公开(公告)日：2002-11-30
申请号：KR1020010028432
申请日：2001-05-23
Applicant: 한국화학연구원
IPC: B22F9/30
Abstract: PURPOSE: Provided is a process for producing spherical nickel or nickel oxide fine powder used as base material for a laminated ceramic condenser by a spray thermal decomposition method. CONSTITUTION: The process comprises the steps of: preparing 0.02-4M(based on the nickel) of a precursor solution by dissolving a nickel precursor material selected from nitrate, acetate, chloride, hydrate, and sulfate of nickel and an additive capable of forming a polymer, selected from di- or tri-carboxylic acid or multi-valent alcohol or a mixture thereof in distilled water or alcohol; injecting the precursor solution into a sprayer and generating drops with a diameter of 0.1-100 micrometer; injecting the drops into a reactor with 200-1500deg.C and drying and performing a thermal decomposition under oxidizing, reducing, or inert gas atmosphere to obtain the nickel or nickel oxide fine powder; additionally, heat-treating the nickel or nickel oxide fine powder at 300-1200deg.C for 10 minutes to 5 hours.
Abstract translation: 目的：提供通过喷雾热分解法制造用于层压陶瓷冷凝器的基材的球形镍或氧化镍细粉的方法。 方法：该方法包括以下步骤：通过将选自硝酸盐，乙酸盐，氯化物，水合物和硫酸镍的镍前体材料溶解在镍中制备0.02-4M（基于镍）的前体溶液和能够形成 聚合物，选自二羧酸或三元羧酸或多元醇或其混合物在蒸馏水或醇中; 将前体溶液注入喷雾器并产生直径为0.1-100微米的液滴; 将液滴注入200-1500℃的反应器中，在氧化，还原或惰性气体气氛下干燥并进行热分解，得到镍或氧化镍细粉; 此外，在300-1200℃下将镍或镍氧化物细粉末热处理10分钟至5小时。
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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。
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Patent Agency Ranking
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.-
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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