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公开(公告)号：KR100503132B1
公开(公告)日：2005-07-22
申请号：KR1020020069146
申请日：2002-11-08
Applicant: 한국화학연구원
IPC: B22F9/08
Abstract: 본 발명은 구형 니켈 금속 미세분말의 제조방법에 관한 것으로서, 분무열분해 공정을 이용하여 니켈 금속 미세분말을 제조함에 있어서, 니켈 전구체 물질과 함께 첨가제로서 에틸렌디아민테트라아세트산계, 에탄올아민계 및 에틸렌디아민계 화합물 중에서 선택된 1종 이상의 킬레이트화제(chelating agent)를 첨가하는 것을 특징으로 하며, 본 발명의 방법에 따라 제조된 니켈 금속 미세분말은, 종래에 첨가제 없이 금속 전구체 물질만을 사용하여 제조하는 방법과 달리, 니켈 금속 미세분말의 형태, 평균 크기 및 크기 분포 특성이 개선되며 속이 차고 균일한 미세한 크기를 갖는 구형의 니켈 금속 미세분말을 제조할 수 있다.
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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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公开(公告)号：KR1020040085039A
公开(公告)日：2004-10-07
申请号：KR1020040020932
申请日：2004-03-26
Applicant: 한국화학연구원
IPC: C09K11/71
CPC classification number: C09K11/7734 , H01L33/502
Abstract: PURPOSE: Provided is a strontium silicate-based phosphor, which shows a broad spectrum of wavelengths of between 500 and 700 nm, has improved color purity and gives stable light-emitting characteristics for a long time even under high temperature. CONSTITUTION: The strontium silicate-based phosphor is represented by the formula of Sr3-xSiO5:Eu2+, wherein x ranges from 0 to 1 (excluding 0). The strontium silicate-based phosphor is prepared by the method comprising the steps of: forming a mixture containing strontium carbonate(SrCO3), silica(SiO2) and europium oxide(Eu2O3); drying the mixture; and heat-treating the dried mixture under reductive atmosphere. A light-emitting diode includes a light-emitting chip(104), and the strontium silicate-based phosphor(108) excited by the light emitted from the light-emitting diode chip(104).
Abstract translation: 目的：提供一种硅酸锶基荧光体，其表现出广泛的波长范围在500和700nm之间，即使在高温下也能长时间提供稳定的发光特性。 构成：硅酸锶基荧光体由Sr3-xSiO5：Eu2 +的式表示，其中x的范围为0至1（不包括0）。 通过包括以下步骤的方法制备硅酸锶基荧光体：形成含有碳酸锶（SrCO 3），二氧化硅（SiO 2）和氧化铕（Eu 2 O 3）的混合物; 干燥混合物; 并在还原气氛下对干燥的混合物进行热处理。 发光二极管包括发光芯片（104）和由发光二极管芯片（104）发射的光激发的硅酸锶基荧光体（108）。
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公开(公告)号：KR100447947B1
公开(公告)日：2004-09-08
申请号：KR1020010075490
申请日：2001-11-30
Applicant: 한국화학연구원
IPC: C09K11/80
Abstract: PURPOSE: A terbium activated CaO-Gd2O3-Al2O3 three-component green fluorescent substance composition for VUV excitation is provided, which composition has a short afterglow time in VUV and an excellent emission luminance and is suitable for a plasma display panel. CONSTITUTION: The CaO-Gd2O3-Al2O3 three-component green fluorescent substance composition is represented by CakGdlTbmAlnO£k+3/2(l+m+n)|, wherein 0.20
Abstract translation: 目的：提供一种用于VUV激发的铽活化的CaO-Gd 2 O 3 -Al 2 O 3三组分绿色荧光物质组合物，该组合物在VUV中具有短的余辉时间和优异的发光亮度，并且适用于等离子体显示面板。 构成：CaO-Gd 2 O 3 -Al 2 O 3三组分绿色荧光物质组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中0.20≤k≤0.31,0.20≤l≤ ; =0.31,0.001≤m≤0.1,0.45≤n≤0.55和k + 1 + m + 1 = 1。 组合物由CakGdlTbmAlnO + k + 3/2（1 + m + n）|表示，其中0.20≤k≤0.40,0.05≤l≤0.40,0.001≤m≤0.30,0.30 ＆lt; = n <= 0.65，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中0.60≤k≤0.7,0.0≤l≤0.1,0.001≤m≤0.1,0.25 ＆lt; = n <= 0.35，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO + k + 3/2（1 + m + n）|表示，其中0.05≤k≤0.12，l =0,0.001≤m≤0.11,0.85≤n≤1。 = 0.95，并且k + 1 + m + 1 = 1。 该组合物用CakGdlTbmAlnO·k + 3/2（1 + m + n）|表示，其中k =0,0.35≤1≤0.55,0.001≤m≤0.17,0.40≤n≤1。 = 0.60，并且k + 1 + m + 1 = 1。 组合物由CakGdlTbmAlnO·k + 3/2（1 + m + n）1表示，其中k = 0,0.20 <=1≤0.35,0.001≤m≤0.17,0.60≤n< = 0.70，并且k + 1 + m + 1 = 1。 此外，组合物由CakGd1TbmAlnO3 + k + 3/2（1 + m + n）|表示，其中k =0,0.65≤1≤0.75,0.001≤m≤0.23,0.25≤n< ; = 0.30，并且k + 1 + m + 1 = 1。
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公开(公告)号：KR1020040040833A
公开(公告)日：2004-05-13
申请号：KR1020020069146
申请日：2002-11-08
Applicant: 한국화학연구원
IPC: B22F9/08
Abstract: PURPOSE: A method for preparing spherical fine nickel metal powder is provided to prepare spherical nickel metal powder an inner part of which is filled with the additives by adding additives capable of reacting with nickel when preparing a precursor spray solution in manufacturing of fine nickel metal powder using spray pyrolysis. CONSTITUTION: The method for preparing spherical fine nickel metal powder comprises a first step of preparing a precursor solution by dissolving one or more of additives selected from a nickel compound selected from nitrate, acetate, chloride, hydrate and sulfate of nickel, 0.01 to 1 mole of ethylenediaminetetraacetic acid based compound on the basis of mole of nickel, 0.01 to 1 mole of ethanolamine based compound and 0.001 to 15 mole of ethylenediamine based compound into distilled water or alcohol; a second step of generating droplets having diameter of 0.1 to 100 μm by injecting the precursor solution into a droplet sprayer; and a third step of drying and pyrolyzing the generated droplets in the reactor temperature range of 600 to 1,500 deg.C, wherein the precursor solution is in the metal concentration range of 0.005 to 2 M, wherein the method further comprises a step of heat treating powder produced when drying and heat treating the generated droplets at an oxidation atmosphere in the third step again at a reduction atmosphere.
Abstract translation: 目的：提供一种制备球形镍镍金属粉末的方法，制备球形镍金属粉末，其内部填充有添加剂，当制备细镍金属粉末时制备前体喷雾溶液时，加入能与镍反应的添加剂 使用喷雾热解。 构成：制备球形细镍金属粉末的方法包括：通过将一种或多种选自硝酸盐，乙酸盐，氯化物，水合物和硫酸镍的镍化合物中选出的一种或多种添加剂溶解在0.01至1摩尔中来制备前体溶液的第一步骤 的乙二胺四乙酸基化合物为基于镍的摩尔数，0.01〜1摩尔乙醇胺系化合物和0.001〜15摩尔乙二胺系化合物为蒸馏水或醇; 通过将前体溶液注入到液滴喷雾器中产生直径为0.1至100μm的液滴的第二步骤; 以及在600至1500℃的反应器温度范围内干燥和热解所产生的液滴的第三步骤，其中前体溶液的金属浓度范围为0.005至2M，其中该方法还包括热处理步骤 在还原气氛下再次在第三步骤中在氧化气氛下干燥和热处理生成的液滴时产生的粉末。
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Patent Agency Ranking
公开(公告)号：KR1020040040043A
公开(公告)日：2004-05-12
申请号：KR1020020068354
申请日：2002-11-06
Applicant: 한국화학연구원
IPC: B22F9/22
Abstract: PURPOSE: A method for manufacturing spherical nickel metal powder is provided which simplifies controlling of size and shape of the powder by reducing the mixture after uniformly mixing vapor phase ammonium chloride with vapor phase nickel chloride in manufacturing of fine nickel metal powder using gas phase process. CONSTITUTION: The method for manufacturing spherical fine nickel metal powder having superior dispersibility comprises a first step of generating a mixed gas phase of ammonium chloride and nickel chloride; a second step of reducing the gas with hydrogen in the temperature range of 900 to 1,400 deg.C; a third step of obtaining fine nickel powder by cooling the reduced gas; and a fourth step of cleaning and drying the fine nickel metal powder after recovering the obtained fine nickel metal powder, wherein the vaporization process of generating a mixed gas phase of ammonium chloride and nickel chloride in the first step is selected from a process selected from a process of vaporizing the mixture after mixing solid phase nickel chloride with solid phase ammonium chloride, a process of mixing gases generated after respectively vaporizing the solid phase nickel chloride and the solid phase ammonium chloride, a process of vaporizing a mixture prepared by mixing nickel chloride with ammonium chloride in a pellet shape, and a process of vaporizing the mixture after mixing nickel metal with pellet shaped ammonium chloride, wherein the reduction process of the second step is performed by introducing nickel chloride gas and ammonium chloride gas into the inner tube in a reactor comprising a double pipe consisted of an inner tube and an outer tube and introducing hydrogen gas into a space between the outer tube and the inner tube, and wherein the cooling process of the third step is performed by rapidly cooling the reduced gas to an ordinary temperature using a cooling gas.
Abstract translation: 目的：提供一种制造球形镍金属粉末的方法，其通过使用气相法在制造细镍金属粉末中均匀混合气相氯化铵与气相氯化镍后，通过减少混合物来简化粉末的尺寸和形状的控制。 构成：具有优异分散性的球形细镍金属粉末的制造方法包括：生成氯化铵和氯化镍的混合气相的第一工序; 在900〜1400℃的温度范围内用氢气还原气体的第二步骤; 通过冷却还原气体获得细镍粉的第三步骤; 以及在回收所得到的细镍金属粉末之后，对细镍金属粉末进行清洗和干燥的第四步骤，其中在第一步骤中产生氯化铵和氯化镍的混合气相的汽化过程选自 将固相氯化镍与固相氯化铵混合后混合物的蒸发过程，将固相氯化镍和固相氯化铵分别蒸发后产生的气体混合的过程，将氯化镍与氯化镍混合制备的混合物蒸发的方法 以及在将镍金属与粒状氯化铵混合后将混合物蒸发的方法，其中第二步骤的还原过程是通过将氯化镍气体和氯化铵气体在反应器内部引入到内管中来进行的 包括由内管和外管组成的双管，并引入hy 将氢气进入外管和内管之间的空间，并且其中通过使用冷却气体将还原气体快速冷却至常温来进行第三步骤的冷却过程。
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公开(公告)号：KR100424864B1
公开(公告)日：2004-03-27
申请号：KR1020010024030
申请日：2001-05-03
Applicant: 한국화학연구원
IPC: C09K11/85
Abstract: PURPOSE: A gadolinium oxybromide(GdOBr)-based green fluorescent substance and its preparation method are provided, to allow the substance to maintain the stable properties even at high vacuum and to improve the luminous brightness at a low velocity electron ray by employing terbium as an activator. CONSTITUTION: The gadolinium oxybromide-based green fluorescent substance is represented by Gd(2-x)OBr: Tbx, wherein 0.001
Abstract translation: 目的：提供一种基于钆溴化钆（GdOBr）的绿色荧光物质及其制备方法，以使该物质即使在高真空下也能保持稳定的性能，并通过采用铽作为一种低速电子射线来提高发光亮度 活化剂。 构成：基于氧溴化钆的绿色荧光物质由Gd（2-x）OBr：Tbx表示，其中0.001≤x≤0.5。 该方法包括：基于氧化钆的量，混合氧化钆（Gd 2 O 3），溴化铵（NH 4 Br）和0.001-0.5摩尔％的氧化铽（Tb 4 O 7） 在100-150℃的温度下干燥混合物; 在还原气氛下在800〜1500℃的温度下烧结干燥后的混合物。 还原气氛优选通过使用2-25体积％的氢气混合物获得。 基于溴化铵的量，混合物优选还包含0.001-0.5摩尔％的溴化钾（KBr）。
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公开(公告)号：KR100424861B1
公开(公告)日：2004-03-27
申请号：KR1020010076239
申请日：2001-12-04
Applicant: 한국화학연구원
IPC: C09K11/77
Abstract: PURPOSE: A method for preparing a spherical boron oxide-based red fluorescent substance by hydrolysis is provided, to enable a single phase of fluorescent substance at a relatively low temperature to be prepared compared with that of existing solid method, with using a smaller amount of expensive rare earth metals. CONSTITUTION: The method comprises the steps of adding tetraethylorthosilicate, liquid ammonia and water to ethyl alcohol and mixing the mixture to precipitate silicic acid hydrate; dispersing the silicic acid hydrate in a precursor aqueous solution comprising Y, Gd, Eu, B and urea, and hydrolyzing the solution at 70-90 deg.C to adjust pH to be 5-10 for precipitating basic carbonate and hydroxide; and filtering and drying the basic carbonate and hydroxide and heating the dried one at 800-1,100 deg.C to prepare a spherical boron oxide-based red fluorescent substance represented by (Y1-x-yGdx)BO3:Eu, wherein 0
Abstract translation: 目的：提供一种通过水解制备球形氧化硼基红色荧光物质的方法，与现有固体方法相比，可以制备较低温度下的单相荧光物质，使用较少量的 昂贵的稀土金属。 组成：该方法包括以下步骤：将正硅酸乙酯，液氨和水加入乙醇中并混合以沉淀硅酸水合物; 将硅酸水合物分散在包含Y，Gd，Eu，B和尿素的前体水溶液中，并在70-90℃水解该溶液以调节pH为5-10以沉淀碱式碳酸盐和氢氧化物; 过滤并干燥碱式碳酸盐和氢氧化物，并在800〜1100℃下加热干燥的碳酸氢盐以制备由（Y1-x-yGdx）BO3：Eu表示的球形氧化硼基红色荧光物质，其中0 <= x < ; = 1.0和0.01 <= y <= 0.2。
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公开(公告)号：KR1020030086117A
公开(公告)日：2003-11-07
申请号：KR1020020024490
申请日：2002-05-03
Applicant: 한국화학연구원
IPC: C09K11/80
CPC classification number: C09K11/7769 , C09K11/7768 , C09K11/7774 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: Provided is a terbium activated green fluorescence material for vacuum ultraviolet excitation, which is excited by radiating vacuum ultraviolet rays, has short afterglow time and excellent brightness, and can be used for plasma display panels(PDP). CONSTITUTION: The terbium activated green fluorescence material represented by the formula AB1-xC3O7:Tbx is produced by adding the terbium as an active agent to AB1-xC3O7 matrix, wherein A is Ca, Sr, or a mixture thereof, B is Y, La, Gd, or a mixture thereof, C is Al, Ga, or a mixture thereof, and x is the range of 0.005
Abstract translation: 目的：提供一种用于真空紫外线激发的铽激活绿色荧光材料，其通过辐射真空紫外线激发，具有短的余辉时间和优异的亮度，并且可用于等离子体显示面板（PDP）。 构成：通过将铽作为活性剂加入到AB1-xC3O7基质中，其中A是Ca，Sr或其混合物，B是Y，La，由AB1-xC3O7：Tbx表示的铽激活的绿色荧光材料 ，Gd或其混合物，C为Al，Ga或其混合物，x为0.005
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公开(公告)号：KR1020030064099A
公开(公告)日：2003-07-31
申请号：KR1020020004542
申请日：2002-01-25
Applicant: 한국화학연구원
IPC: C09K11/74
CPC classification number: C09K11/7709 , C09K11/7708 , H01J2211/42 , Y02B20/181
Abstract: PURPOSE: A YRO4-based (R is As, Nb, P, V) blue fluorescent substance for a plasma display panel and its preparation method are provided, wherein the blue fluorescent substance has an excellent luminance efficiency at VUV and a good color purity and the luminance intensity of blue fluorescent substance can be controlled according to the composition of an activator and the composition. CONSTITUTION: The YRO4-based blue fluorescent substance is represented by Y(NbmP1-m-nVn)O4, wherein 0.02
Abstract translation: 目的：提供一种用于等离子体显示面板的YRO4基（R为As，Nb，P，V）蓝色荧光物质及其制备方法，其中蓝色荧光物质在VUV下具有优异的发光效率和良好的色纯度， 可以根据活化剂的组成和组成控制蓝色荧光物质的亮度强度。 构成：基于YRO4的蓝色荧光物质由Y（NbmP1-m-nVn）O4表示，其中0.02
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