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公开(公告)号：KR100486959B1
公开(公告)日：2005-05-03
申请号：KR1020030005760
申请日：2003-01-29
Applicant: 한국화학연구원
Abstract: 본 발명은 나노 입자크기를 가진 세리아 분말의 제조방법에 관한 것으로서, 더욱 상세하게는 입자가 나노크기를 갖는 세리아 분말 제조를 위한 전구체 용액에 유기 카복실산, 글리콜 또는 다가 알콜 등의 유기물질들을 적정비율로 첨가하고 분무 열분해법에 의해 액적으로 분무하여 매우 속이 빈 형태의 전구체 분말들을 제조하고, 이를 소성공정 및 밀링 공정에 의한 분쇄를 통해 비응집성의 나노 세리아 분말로 대량 합성하는 방법에 관한 것이다.
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公开(公告)号：KR1020040047154A
公开(公告)日：2004-06-05
申请号：KR1020020075262
申请日：2002-11-29
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for manufacturing spherical Ni metal or nickel oxide fine particle having non-porous densified internal structure by adding colloid solution also during preparation of precursor spray solution in preparation method of Ni metal fine particle using spray pyrolysis is provided. CONSTITUTION: The method comprises the processes of preparing a Ni precursor solution by dissolving a nickel compound selected from nickel nitrate, nickel acetate, nickel chloride, nickel hydrate and nickel sulfate into nano metal colloid solution; generating droplets having diameter of 0.1 to 100 μm by injecting the precursor solution into a droplet sprayer; and drying and pyrolyzing the generated droplets in the reactor temperature range of 500 to 1,500 deg.C, wherein size of metal particles in the nano metal colloid solution is 10 to 500 nm, wherein the nano metal colloid solution is prepared by dispersing a metal nano particle selected from nano silica, nano titania, nano silver, nano yttria, nano nickel and hydrate particle thereof into a water soluble or organic solvent, wherein the nano metal colloid solution is prepared by sol-gel reacting the mixture after preparing a mixture by mixing a metal compound selected from nitrate, acetate, chloride, hydrate and sulfate of a metal selected from metals, transition metals and lanthanide metals of group I to group IV in the periodic table with urea in a mole ratio of 1:1 to 1:1,000, and wherein the nano metal colloid solution is prepared by sol-gel reacting the solution after dissolving and dispersing a metal alkoxide selected from titanium isopropoxide, tetraethoxy orthosilicate (TEOS) and a mixture thereof into a solvent.
Abstract translation: 目的：提供一种通过在使用喷雾热解制备Ni金属微粒的制备方法中，通过在制备前体喷雾溶液期间添加胶体溶液来制造具有无孔致密化内部结构的球形Ni金属或氧化镍微粒的方法。 构成：该方法包括通过将选自硝酸镍，乙酸镍，氯化镍，水合镍和硫酸镍的镍化合物溶解在纳米金属胶体溶液中制备Ni前体溶液的方法; 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; 在500〜1500℃的反应器温度范围内干燥和热解生成的液滴，其中纳米金属胶体溶液中金属颗粒的尺寸为10〜500nm，其中纳米金属胶体溶液通过分散金属纳米粒子 选自纳米二氧化硅，纳米二氧化钛，纳米银，纳米氧化钇，纳米镍及其水合物颗粒的颗粒进入水溶性或有机溶剂，其中纳米金属胶体溶液通过混合制备混合物后通过溶胶 - 凝胶反应制备 选自金属，过渡金属和元素周期表中第Ⅳ族至Ⅳ族镧系元素的金属的硝酸盐，乙酸盐，氯化物，水合物和硫酸盐的金属化合物，其摩尔比为1:1至1:1000 并且其中所述纳米金属胶体溶液通过在溶解和分散选自异丙醇钛，原硅酸四乙酯（TEOS）和 将其混合物加入溶剂中。
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公开(公告)号：KR100430755B1
公开(公告)日：2004-05-10
申请号：KR1020010083950
申请日：2001-12-24
Applicant: 한국화학연구원
IPC: C09K11/81
Abstract: PURPOSE: A blue halophosphate-based fluorescent substance for a long wavelength UV, its preparation method and a long wavelength UV emitting device containing the fluorescent substance are provided, which substance has a high absorption peak at a wavelength of 380-420 nm and a high luminance by two times compared with an already-existing blue fluorescent substance. CONSTITUTION: The halophosphate-based fluorescent substance is represented by (Sr(1-x), Mgx)(10-y)(PO4)6Cl2:Euy+2+, wherein 0
Abstract translation: 本发明提供一种用于长波紫外线的蓝色卤代磷酸盐基荧光物质及其制备方法和含有该荧光物质的长波长UV发射装置，该物质在380-420nm波长处具有高吸收峰， 与已有的蓝色荧光物质相比亮度降低了两倍。 构成：基于卤磷酸盐的荧光物质由（Sr（1-x），Mg x）（10-y）（PO 4）6 Cl 2：Eu y + 2 +表示，其中0
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公开(公告)号：KR1020040069404A
公开(公告)日：2004-08-06
申请号：KR1020030005760
申请日：2003-01-29
Applicant: 한국화학연구원
CPC classification number: C01F17/0043 , C01P2004/64
Abstract: PURPOSE: Provided is a preparation method of nano-sized ceria powder(CeO2) with no agglomeration by forming hollow or porous ceria precursor powder by thermal spraying ceria precursor solution containing organic materials. CONSTITUTION: The CeO2 powder is prepared by the following steps of: (i) preparing ceria precursor solution, having 0.02-3M of Ce, by dissolving cerium salt selected from acetate, nitrate, chloride or hydroxide of cerium and organic additives comprising carboxylic acid and glycol(or multivalent alcohol) into water or alcohol, wherein cerium salt and organic additives are mixed in a molar ratio of 1 : 0.001-2, and 0.1-0.3M of ethylenediaminetetraacetic acid(EDTA) is optionally added to form polymeric materials. The organic additives are carboxylic acid(citric acid, malic acid or pyruvic acid), and glycol(ethylene glycol, propylene glycol or polyethylene glycol) or multivalent alcohol(trivalent alcohol or tetravalent alcohol), wherein carboxylic acid and glycol or multivalent alcohol are mixed in a weight ratio of 1 : 0.1-10; (ii) thermal spraying precursor solution to form liquid drops(0.01-100micrometer size); (iii) thermal drying liquid drops at 200-1500deg.C for 0.1-10sec to form hollow or porous ceria precursor powder by decomposing organic or polymeric precursors; (iv) sintering ceria precursor powder at 500-1200deg.C for 10-600min and milling. Also, 1-50mol% of at least one metal selected from Y, Gd, Sm, Zr, Zn, Sc, Yb, etc. is optionally added to the step(i) for the preparation of metal-doped ceria powder.
Abstract translation: 目的：提供一种纳米二氧化铈粉末（CeO2）的制备方法，通过热喷涂含有机材料的二氧化铈前体溶液，通过形成中空或多孔二氧化铈前体粉末而不凝聚。 构成：通过以下步骤制备CeO 2粉末：（i）通过溶解选自乙酸盐，硝酸盐，氯化物或铈的氢氧化物的铈盐和包含羧酸的有机添加剂，制备具有0.02-3M Ce的二氧化铈前体溶液， 乙二醇（或多元醇）转化成水或醇，其中铈盐和有机添加剂以1:0.002-2的摩尔比混合，并且任选地加入0.1-0.3M的乙二胺四乙酸（EDTA）以形成聚合物。 有机添加剂是羧酸（柠檬酸，苹果酸或丙酮酸）和二醇（乙二醇，丙二醇或聚乙二醇）或多元醇（三价醇或四价醇），其中羧酸和二醇或多价醇混合 重量比为1：0.1-10; （ii）热喷雾前体溶液以形成液滴（0.01-100微米尺寸）; （iii）热干燥液体在200-1500℃下滴加0.1-10秒，通过分解有机或聚合物前体形成中空或多孔二氧化铈前体粉末; （iv）在500-1200℃烧结二氧化铈前体粉末10-600分钟并研磨。 此外，为了制备金属掺杂的二氧化铈粉末，任选地在步骤（i）中加入1-50mol％的选自Y，Gd，Sm，Zr，Zn，Sc，Yb等的至少一种金属。
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公开(公告)号：KR100507638B1
公开(公告)日：2005-08-10
申请号：KR1020020075262
申请日：2002-11-29
Applicant: 한국화학연구원
Abstract: 본 발명은 구형 니켈 미세 분말의 제조방법에 관한 것으로서, 분무열분해 공정을 이용하여 구형 니켈 금속 및 니켈 산화물 미세 분말을 제조함에 있어서, 니켈 전구체 물질과 함께 나노 금속 콜로이드를 첨가함에 따라 제조된 니켈 미세 분말은, 상기 나노 금속 콜로이드의 첨가 없이 제조된 종래의 니켈 입자에 비해 속이 차고 완벽한 구형의 형상을 가지며, 다양한 전자부품 및 응용분야에서 그 기초 원료 분말로서 널리 활용될 수 있다.
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Patent Agency Ranking
公开(公告)号：KR100462073B1
公开(公告)日：2004-12-17
申请号：KR1020020039962
申请日：2002-07-10
Applicant: 한국화학연구원
IPC: B01J2/06
Abstract: PURPOSE: Provided is an ultrasonic spray pyrolysis apparatus for producing ultrafine particles, the apparatus being capable of producing ultrafine particles in large volumes under optimum condition. CONSTITUTION: The apparatus comprises a liquid droplet generator(1) for generating liquid droplets from a reaction solution, a plurality of liquid droplet sprayers(4), a reactor for drying the sprayed liquid droplet and performing pyrolysis to produce particles, and a collector for collecting the particles, wherein the liquid droplet generator(1) includes a plurality of ultrasonic oscillators, the reactor includes a plurality of reaction pipes(5) and the number of the liquid droplet sprayers(4) and the reaction pipes(5) is the same as the number of the ultrasonic oscillators.
Abstract translation: 目的：提供一种用于生产超细颗粒的超声喷雾热解设备，该设备能够在最佳条件下大量生产超细颗粒。 本发明的装置包括：用于从反应溶液产生液滴的液滴发生器（1），多个液滴喷雾器（4），用于干燥喷雾液滴并进行热解以产生颗粒的反应器， 收集颗粒，其中液滴发生器（1）包括多个超声波振荡器，反应器包括多个反应管（5），液滴喷射器（4）和反应管（5）的数量是 与超声波振荡器的数量相同。
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公开(公告)号：KR1020040005411A
公开(公告)日：2004-01-16
申请号：KR1020020039962
申请日：2002-07-10
Applicant: 한국화학연구원
IPC: B01J2/06
Abstract: PURPOSE: Provided is an ultrasonic spray pyrolysis apparatus for producing ultrafine particles, the apparatus being capable of producing ultrafine particles in large volumes under optimum condition. CONSTITUTION: The apparatus comprises a liquid droplet generator(1) for generating liquid droplets from a reaction solution, a plurality of liquid droplet sprayers(4), a reactor for drying the sprayed liquid droplet and performing pyrolysis to produce particles, and a collector for collecting the particles, wherein the liquid droplet generator(1) includes a plurality of ultrasonic oscillators, the reactor includes a plurality of reaction pipes(5) and the number of the liquid droplet sprayers(4) and the reaction pipes(5) is the same as the number of the ultrasonic oscillators.
Abstract translation: 目的：提供一种用于生产超细颗粒的超声波喷雾热解装置，该装置能够在最佳条件下大量生产超细颗粒。 构成：该装置包括用于从反应溶液产生液滴的液滴发生器（1），多个液滴喷雾器（4），用于干燥喷射的液滴并进行热解以产生颗粒的反应器，以及用于 收集颗粒，其中液滴发生器（1）包括多个超声波振荡器，反应器包括多个反应管（5），液滴喷雾器（4）和反应管（5）的数量为 与超声波振荡器的数量相同。
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公开(公告)号：KR100486064B1
公开(公告)日：2005-04-29
申请号：KR1020020028936
申请日：2002-05-24
Applicant: 한국화학연구원
IPC: C01G23/047 , B82B3/00
Abstract: 본 발명은 구형 티타니아 분말의 제조 방법에 관한 것으로서, 분무열분해공정을 이용하여 분말을 제조함에 있어서 티타니아 원료로서 나노 발연 티타니아(fumed titania), 및 티타늄 이소프로폭사이드(titanium isopropoxide, TTIP) 또는 금속산화물의 혼합물을 적정 비율로 혼합하여 적용함을 특징으로 하는 본 발명의 방법에 따라 제조된 티타니아 분말은, 구형의 형상을 가지면서 다공성이며 분말들간의 결합성 및 안정성이 우수하여, 전자재료용 기초 소재, 광촉매, 백색 안료 및 화장품 원료의 다양한 응용 분야에 적용될 수 있다.
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公开(公告)号：KR1020030091016A
公开(公告)日：2003-12-01
申请号：KR1020020028936
申请日：2002-05-24
Applicant: 한국화학연구원
IPC: C01G23/047 , B82B3/00
CPC classification number: C01G23/08 , C01P2004/32 , C01P2004/61 , C01P2006/12
Abstract: PURPOSE: Provided is a process for preparing spherical porous titania powder having an uniform size, a high surface area and a dense structure suitable to be used in a photo-catalyst, a white pigment and a cosmetic material. CONSTITUTION: The process for preparing spherical porous titania powder comprises the steps of: (1) dispersing or dissolving a mixture of fumed titania with titanium isopropoxide, or with an oxide of a metal selected from the group consisting of silicon, aluminum and zinc into a solvent to form titania compound solution having a concentration of 0.02-3M; (2) introducing the solution into a pulverizer to generate liquid droplets having a diameter of 0.1-100 micrometers; and (3) drying and heat treating the liquid droplets at the temperature of 600-1000 deg.C for 0.6 to 10 seconds.
Abstract translation: 目的：提供一种制备具有均匀尺寸，高表面积和适用于光催化剂，白色颜料和化妆品材料的致密结构的球形多孔二氧化钛粉末的方法。 构成：制备球形多孔二氧化钛粉末的方法包括以下步骤：（1）将热解的二氧化钛与异丙醇钛的混合物或选自硅，铝和锌的金属的氧化物分散或溶解到 溶剂形成浓度为0.02-3M的二氧化钛化合物溶液; （2）将溶液引入粉碎机中以产生直径为0.1-100微米的液滴; 和（3）在600-1000℃的温度下干燥和热处理液滴0.6至10秒。
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公开(公告)号：KR1020030053919A
公开(公告)日：2003-07-02
申请号：KR1020010083950
申请日：2001-12-24
Applicant: 한국화학연구원
IPC: C09K11/81
CPC classification number: C09K11/7737 , C01P2004/03 , C09K11/7731 , C09K11/7733 , Y02B20/181
Abstract: PURPOSE: A blue halophosphate-based fluorescent substance for a long wavelength UV, its preparation method and a long wavelength UV emitting device containing the fluorescent substance are provided, which substance has a high absorption peak at a wavelength of 380-420 nm and a high luminance by two times compared with an already-existing blue fluorescent substance. CONSTITUTION: The halophosphate-based fluorescent substance is represented by (Sr(1-x), Mgx)(10-y)(PO4)6Cl2:Euy+2+, wherein 0
Abstract translation: 目的：提供一种用于长波长紫外线的蓝色卤代磷酸盐荧光物质及其制备方法和含有荧光物质的长波长紫外线发射装置，该物质在波长380-420nm具有高吸收峰，高 与现有的蓝色荧光物质相比，亮度提高了两倍。 构成：卤代磷酸酯类荧光物质由（Sr（1-x），Mgx）（10-y）（PO4）6Cl2：Euy + 2 +表示，其中0
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