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公开(公告)号：KR1020100011495A
公开(公告)日：2010-02-03
申请号：KR1020080072733
申请日：2008-07-25
Applicant: 충남대학교산학협력단
IPC: C01B33/02
CPC classification number: C01B33/023
Abstract: PURPOSE: A manufacturing method of silicon powder and silicon ingot by self-propagating high-temperature synthesis is provided to produce a large quantity of silicon with a single process, and to selectively manufacture the silicon powder or the silicon ingot. CONSTITUTION: A manufacturing method of silicon by self-propagating combustion synthesis comprises a step for manufacturing raw materials containing Sodium metasilicate anhydrous, silicide, metal reducing agent and potassium chlorate to the silicon powder or the silicon ingot. The manufacturing method of the silicon by the self-propagating combustion synthesis includes a step for producing the raw materials, a step for reducing silicide by heating or igniting the raw material, and a step for leaching the reactants with acid liquid after washing the reactnats with distilled water.
Abstract translation: 目的：提供通过自蔓延高温合成的硅粉和硅锭的制造方法，以单一工艺生产大量的硅，并选择性地制造硅粉或硅锭。 构成：通过自蔓延燃烧合成的硅的制造方法包括将含有无水硅酸钠，金属还原剂和氯酸钾的原料制造到硅粉或硅锭的步骤。 通过自蔓延燃烧合成的硅的制造方法包括生产原料的步骤，通过加热或点燃原料来还原硅化物的步骤，以及在用反应物洗涤反应物后用酸性液体浸出反应物的步骤 蒸馏水。
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公开(公告)号：KR1020100000975A
公开(公告)日：2010-01-06
申请号：KR1020080060676
申请日：2008-06-26
Applicant: 충남대학교산학협력단
Abstract: PURPOSE: A manufacturing method of tungsten nanopowder in the low temperature using a zinc reducing agent is provided to manufacture uniform tungsten nanopowder by loss temperature-heating. CONSTITUTION: A manufacturing method of tungsten nanopowder in the low temperature using a zinc reducing agent comprises the steps for: mixing the raw material containing tungsten compound, zinc as a reducing agent, and alkaline salt as a particle growth inhibitor; heating the mixed material at 400~700°C in the vacuum and inert gas atmosphere; and leaching the mixed material with acid solution after washing the mixed reaction product with the distilled water. The alkaline salt is LiF, LiCl, LiBr, LiI, NaF, NaCl, NaBr, NaI, KF, KCl, KBr, or the mixed material. The tungsten compound is WO3, H2WO4, 5(NH4)2O·12WO3·5H2O, or the mixed material. The above material contains the zinc of 3~36 moles based on the tungsten compound 1 mole. The raw material contain the zinc of a ~36 mole, 3 mole based on the tungsten compound Gram formula weight.
Abstract translation: 目的：提供使用锌还原剂在低温下制备钨纳米粉末的方法，通过损耗温度加热制造均匀的钨纳米粉末。 构成：使用锌还原剂的低温钨纳米粉末的制造方法包括以下步骤：将含钨化合物的原料，作为还原剂的锌和作为颗粒生长抑制剂的碱性盐混合; 在真空和惰性气体气氛中，在400〜700℃下加热混合物; 并在用蒸馏水洗涤混合的反应产物后用酸溶液浸出混合物。 碱性盐为LiF，LiCl，LiBr，LiI，NaF，NaCl，NaBr，NaI，KF，KCl，KBr或混合物。 钨化合物是WO3，H2WO4,5（NH4）2O·12WO3·5H2O，或混合材料。 上述材料含有基于钨化合物1摩尔的3〜36摩尔的锌。 原料含有〜36摩尔的锌，基于钨化合物革兰公式重量的3摩尔。
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公开(公告)号：KR1020090115605A
公开(公告)日：2009-11-05
申请号：KR1020080041537
申请日：2008-05-02
Applicant: 충남대학교산학협력단
IPC: C04B35/468 , C04B35/64
CPC classification number: C01G23/006 , C01P2002/34 , C01P2004/51 , C01P2004/62 , C01P2006/40 , C01P2006/80
Abstract: PURPOSE: A fabrication method of barium titanate using solid state reaction is provided to allow active growth of BaTiO3 at the same time preventing particles from lumping together. CONSTITUTION: A fabrication method of barium titanate comprises the step of heat-treating Ba precursors, Ti precursors, alkaline salts, and BaTiO3 seeds. More specifically, the fabrication method of barium titanate is comprised of: mixing all those ingredients, pulverizing, and heat-treating them; and washing the heat-treated powder, and wetly pulverizing it. The alkaline salts are selected among LiCl, NaCl, KCl, LiF, NaF, KF, LiBr, NaBr, KBa, LiI, NaI, KI, and their mixture. The BaTiO3 seeds have average particle size of 0.1μm~0.5μm and unimodal particle size distribution.
Abstract translation: 目的：提供使用固态反应的钛酸钡的制造方法，以允许BaTiO 3的主动生长同时防止颗粒团聚在一起。 构成：钛酸钡的制造方法包括热处理Ba前体，Ti前体，碱性盐和BaTiO3种子的步骤。 更具体地说，钛酸钡的制造方法包括：混合所有这些成分，粉碎和热处理; 并洗涤热处理的粉末，并将其湿式粉碎。 碱性盐选自LiCl，NaCl，KCl，LiF，NaF，KF，LiBr，NaBr，KBa，LiI，NaI，KI及其混合物。 BaTiO3种子的平均粒径为0.1μm〜0.5μm，单峰粒径分布。
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公开(公告)号：KR101352371B1
公开(公告)日：2014-01-22
申请号：KR1020120056563
申请日：2012-05-29
Applicant: 충남대학교산학협력단
IPC: B22F9/20
Abstract: 본 발명에 따른 자전연소합성법(Self-propagating high-temperature synthesis, SHS)을 이용한 저산소 티타늄(Ti)분말의 제조방법은 산화티타늄; 금속 환원제; 환원 활성제;를 함유하는 원료를 진공 또는 불활성 기체 분위기에서 자전연소합성하여 저산소 티타늄 분말을 제조하는 특징이 있다.
본 발명에 따른 제조방법은 산소함량이 1.5% 이하인 티타늄 분말을 효과적으로 제조할 수 있는 장점이 있다. 또한, 기존의 제조 공정에 비해 수초 내지 수분 이내로 반응하여 공정시간이 짧고, 공정이 단순하며, 열효율 및 생산성이 우수하여 제조 원가를 크게 절감할 수 있으며, 대량생산이 가능하다는 장점이 있다.-
公开(公告)号：KR101136744B1
公开(公告)日：2012-04-19
申请号：KR1020110110558
申请日：2011-10-27
Applicant: 충남대학교산학협력단
Abstract: PURPOSE: Silicon oxynitride-based phosphors are provided to have light-emitting region distributed from blue-green to yellow according to the kind and concentration of alkaline earth metals and rare earth metals, and to have excellent specific surface area, thereby having high luminous efficiency to weight. CONSTITUTION: A manufacturing method of silicon oxynitride-based phosphors having chemical formula: (Me_(1-x)Re_x)3Si_6O_(15-3y)N_2y comprises: a step of offering alkaline earth metal oxide, rare earth metal oxide, alkali earth metal halogenide, silicon source, and reacted mixture of a reducing agent; and a step of self-propagating combustion reacting the reacted mixture under nitrogen atmosphere inside a high pressure reactor. In chemical formula, Me is alkaline earth metal, Re is rare earth metal, Si is silicon, O is oxygen, N is nitrogen, and 0
Abstract translation: 目的：根据碱土金属和稀土金属的种类和浓度，提供基于氮氧化硅的荧光体，使发光区域从蓝绿色分布为黄色，并具有优异的比表面积，从而具有高发光效率 重量 构成：具有化学式为（Me_（1-x）Re_x）3Si_6O_（15-3y）N_2y的氮氧化硅基荧光体的制造方法包括：提供碱土金属氧化物，稀土金属氧化物，碱土金属 卤化物，硅源和还原剂的反应混合物; 并且在氮气气氛下在高压反应器内使反应混合物自蔓延的步骤。 在化学式中，Me是碱土金属，Re是稀土金属，Si是硅，O是氧，N是氮，0
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Patent Agency Ranking
公开(公告)号：KR101014001B1
公开(公告)日：2011-02-14
申请号：KR1020080072733
申请日：2008-07-25
Applicant: 충남대학교산학협력단
IPC: C01B33/02
Abstract: 본 발명에 따른 자전연소합성법에 의한 규소분말과 주괴(ingot)의 제조방법은 규소화합물(SiO
2 , Na
2 SiO
3 ); 금속환원제; 염소산칼륨(KClO
3 );을 함유하는 원료를 불활성 기체 분위기에서 합성하여 고순도 규소 분말 및 주괴(ingot)를 제조하는 특징이 있다.
본 발명에 따른 제조방법은 다른 결정상(phase)를 함유하지 않는 고순도의 규소를 제조할 수 있으며, 규소의 형상이 분말 또는 주괴(ingot) 형상으로 선택적으로 제조되며, 연소파 온도가 균일하게 유지 및 전파되어 단일한 공정으로 다량의 규소를 제조할 수 있으며, 규소화합물이 규소로 환원되지 않고 미반응 상태로 잔존하는 것을 방지할 수 있으며, 기존의 제조 공정과 비교하여 제조 원가를 크게 절감할 수 있는 특징이 있다. 또한, 기존의 규소 분말 또는 규소 주괴(ingot)제조 공정에 비하여 공정이 단순하고 공정시간이 매우 짧으며, 열효율이 우수하여 생산성이 우수하고 대량생산 가능한 이점을 갖는다.
규소, 분말, 주괴, 자전연소합성법, 규소화합물, 금속 환원제-
公开(公告)号：KR1020100085215A
公开(公告)日：2010-07-29
申请号：KR1020090004388
申请日：2009-01-20
Applicant: 충남대학교산학협력단
IPC: B22F1/02
Abstract: PURPOSE: A silver coated layer manufacturing method for a copper powder is provided to uniformly forming a silver coated layer on the surface of copper power by extracting silver with growing silver ion from ammonia solution due to a hydroquinone. CONSTITUTION: A silver coated layer manufacturing method for a copper powder comprises the following steps. A first solution is made with distilled water adding copper powder whose oxide layer is removed and hydroquinone for a reducing agent. A second solution is made with mixing silver nitrate aqueous solution and ammonia aqueous solution. The first solution and the second solution are mixed and reacted. The copper powder in which a silver coating layer is formed after reacting the first solution and the second solution is created. The concentration of the hydroquinone is 0.06~0.18 M. The concentration of the silver nitrate aqueous solution is 0.11~0.19 M.
Abstract translation: 目的：提供一种铜粉的银涂层制造方法，其通过由于氢醌而从氨溶液中生长的银离子提取银，从而在铜电力表面上均匀地形成银涂层。 构成：铜粉的银涂层制造方法包括以下步骤。 第一溶液用蒸馏水加入除去氧化物层的铜粉和用于还原剂的氢醌。 第二种溶液是用硝酸银水溶液和氨水溶液混合制成的。 第一溶液和第二溶液混合并反应。 产生在第一溶液和第二溶液反应之后形成银涂层的铜粉末。 氢醌的浓度为0.06〜0.18M。硝酸银水溶液的浓度为0.11〜0.19M。
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公开(公告)号：KR1020100083224A
公开(公告)日：2010-07-22
申请号：KR1020090002502
申请日：2009-01-13
Applicant: 충남대학교산학협력단
Abstract: PURPOSE: A manufacturing method of mono-dispersed globular Ag power by a chemical reduction technique is provided to decrease the crystal size of Ag powder and to increase the crystallization of the Ag powder by setting the temperature to be low and by performing thermal treatment. CONSTITUTION: A manufacturing method of mono-dispersed globular Ag power comprises next steps. A first solution is manufactured by mixing Ag nitrate with basic solution, a second solution comprising gelatin is made by dissolving hydroquinone and potassium sulfate in the distilled water. The first solution and the second solution are mixed in a low temperature state to produce Ag powder. The produced Ag powder is obtained, washed and dried. The obtained Ag powder is thermally treated. The basic solution is one or more kinds selected from the group consisting of ammonia liquor, potassium hydroxide aqueous solution and sodium hydroxide aqueous solution.
Abstract translation: 目的：通过化学还原技术制造单分散球状Ag电力的制造方法，通过将温度设定得较低并进行热处理，降低Ag粉末的结晶尺寸，增加Ag粉末的结晶化。 构成：单分散球状Ag电力的制造方法包括以下步骤。 通过将硝酸银与碱性溶液混合制备第一溶液，通过将氢醌和硫酸钾溶解在蒸馏水中制成包含明胶的第二溶液。 将第一溶液和第二溶液在低温状态下混合以产生Ag粉末。 得到的Ag粉末，洗涤并干燥。 将所得Ag粉末进行热处理。 碱性溶液是选自由氨液，氢氧化钾水溶液和氢氧化钠水溶液组成的组中的一种或多种。
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公开(公告)号：KR1020100083002A
公开(公告)日：2010-07-21
申请号：KR1020090002341
申请日：2009-01-12
Applicant: 충남대학교산학협력단
Inventor： 원창환
IPC: C01B21/072
CPC classification number: C01B21/0722 , C01P2004/61 , C01P2006/80
Abstract: PURPOSE: A manufacturing method of aluminum nitride using self-propagating combustion is provided to remarkably reduce manufacturing costs and to improve heat efficiency without continuously supplying the heat from the outside. CONSTITUTION: A manufacturing method of aluminum nitride using self-propagating combustion includes a step for manufacturing aluminum nitride powder under nitrogen atmosphere. A raw material further contains nitrogen salt. The nitrogen salt is mixed of ammonium chloride, a sodium nitrate or a mixture thereof. The raw material contains the nitrogen salt of 1 ~ 5 weight%. A molar ratio of the aluminum and the aluminum nitride is 1:1.5 ~ 3. An average particle size of the aluminum powder is 10 ~ 40μm.
Abstract translation: 目的：提供使用自传播燃烧的氮化铝的制造方法，以显着降低制造成本并提高热效率，而不用从外部连续供热。 构成：使用自传播燃烧的氮化铝的制造方法包括在氮气氛下制造氮化铝粉末的工序。 原料还含有氮盐。 氮盐与氯化铵，硝酸钠或其混合物混合。 原料含有1〜5重量％的氮盐。 铝和氮化铝的摩尔比为1：1.5〜3。铝粉的平均粒径为10〜40μm。
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公开(公告)号：KR101111462B1
公开(公告)日：2012-02-22
申请号：KR1020090087941
申请日：2009-09-17
Applicant: 충남대학교산학협력단
Abstract: 본 발명은 질산은 용액, 암모늄포름산 용액을 혼합 교반하여 제조된 은 포름산을 진공 또는 불활성 기체 분위기에서 분해하여 제조하는 다공성 은 분말 제조방법 및 질산은 용액, 암모늄포름산 용액을 혼합 교반하여 제조된 은 포름산을 용액에서 분해 반응 및 입자간 응집 반응을 시켜 제조하는 다공성 은 분말 제조방법에 관한 것이다.
본 발명에 다른 제조방법은 유기물 템플리트(template)를 사용하지 않고도 다공성 은 분말을 제조할 수 있으며, 고온 열처리가 아닌 비교적 온화한 조건에서 제조할 수 있는 장점이 있다.
질산은, 암모늄 포름산, 다공성 은 분말, 석출
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