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公开(公告)号：KR101335493B1
公开(公告)日：2013-12-02
申请号：KR1020120016803
申请日：2012-02-20
Applicant: 한국지질자원연구원
Abstract: 판상은 분말이 응집되지 않고 균일하게 분산된 형태를 가지며, 페이스트로 제조시 우수한 전기적 특성을 확보할 수 있는 판상 은 페이스트 및 그 제조 방법에 대하여 개시한다.
본 발명에 따른 판상 은 페이스트 제조 방법은 (a) 용매에 은 전구체를 용해시킨 후, 첨가제로 NH
4 OH, PVP(Polyvinyl pyrrolidone) 및 PdCl
2 를 차례로 첨가한 혼합 용액을 40 ~ 80분 동안 반응시키는 단계; (b) 상기 반응시킨 혼합 용액에 환원제로 H
2 O
2 를 첨가하여 환원 반응시키는 단계; (c) 상기 환원 반응이 완료된 반응물을 고액 분리한 후, 30 ~ 70℃에서 20 ~ 40시간 동안 건조하여 판상 은 분말을 수득하는 단계; 및 (d) 상기 수득된 판상 은 분말을 페이스트로 제조하여 전기적 특성을 평가하는 단계;를 포함하는 것을 특징으로 한다.-
公开(公告)号：KR101173456B1
公开(公告)日：2012-08-16
申请号：KR1020100041290
申请日：2010-05-03
Applicant: 한국지질자원연구원
CPC classification number: Y02P20/129
Abstract: 본발명은암모니아분해용반응기에관한것으로, 더욱상세하게는금속박판표면에미세유로를형성한미세유로층을다수적층하여, 암모니아또는암모니아수를수소와질소로촉매분해하는암모니아분해용미세유로반응기및 암모니아분해방법에관한것이다. 본발명에따른암모니아분해용미세유로반응기에의하면고온을필요로하는암모니아열분해반응이나, 촉매분해반응공정에서미세유로반응기를사용함으로써, 사이즈를줄인컴팩트한반응기를제공하고, 열효율을극대화하며, 과잉에너지손실문제를해결할수 있는효과가있다.
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公开(公告)号：KR1020120065831A
公开(公告)日：2012-06-21
申请号：KR1020100127145
申请日：2010-12-13
Applicant: 한국지질자원연구원
IPC: B22F9/24
CPC classification number: B22F9/24 , B22F1/0011 , B22F2201/013 , B22F2301/15
Abstract: PURPOSE: A method for direct preparation of nickel powder using a hydrothermal method is provided to easily control the shape and particle size of nickel powder and improve the dispersibility and yield rate of nickel powder. CONSTITUTION: A method for direct preparation of nickel powder using a hydrothermal method comprises the steps of: preparing a hydrothermal synthetic mixture comprising NiO, pH adjuster, PdCl2, Anthraquinone, PVP(Polyvinyl pyrrolidone), and water(S310), putting the hydrothermal synthetic mixture into a reaction container and heating over the boiling temperature of water(S320), adding reductant to the heated mixture to dissolve the NiO and reduce Ni(S330), cooling the resultant of hydrothermal synthesis(S340), and washing and drying the cooled resultant to obtain Ni powder(S350).
Abstract translation: 目的：提供一种使用水热法直接制备镍粉的方法，可以方便地控制镍粉的形状和粒径，提高镍粉的分散性和产率。 构成：使用水热法直接制备镍粉的方法包括以下步骤：制备包含NiO，pH调节剂，PdCl 2，蒽醌，PVP（聚乙烯吡咯烷酮）和水的水热合成混合物（S310），将水热合成 混合物加入到反应容器中并在水的沸腾温度下加热（S320），向加热的混合物中加入还原剂以溶解NiO并还原Ni（S330），冷却水热合成的结果（S340），并洗涤并干燥冷却 得到Ni粉末（S350）。
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公开(公告)号：KR1020110121821A
公开(公告)日：2011-11-09
申请号：KR1020100041290
申请日：2010-05-03
Applicant: 한국지질자원연구원
CPC classification number: Y02P20/129 , C01B3/047 , B01J6/008 , B01J21/02 , B01J23/63 , B01J2219/00076 , B01J2219/00858 , C01B21/02
Abstract: PURPOSE: A micro-channel reactor for decomposing ammonia and an ammonia decomposing method using the same are provided to efficiently implement an ammonia decomposing process by stacking a plurality of micro-channel layers on the surface of a metal thin plate and supplying heat to the metal thin plate. CONSTITUTION: A micro-channel reactor for decomposing ammonia(100) includes an upper plate(110), a lower plate(130), and micro-channel layers(120) which are stacked between the upper plate and the lower plate. The micro-channel layers include a heat exchanging layer for preheating ammonia(121), a heat exchanging layer for recovering heat(122), a decomposing layer(124), a fuel combusting layer(125), and a heat exchanging layer for preheating air(127). The heat exchanging layer for preheating ammonia supplies a part of reacting heat to ammonia. The heat exchanging layer for recovering heat supplies heat to the ammonia flowing through the heat exchanging layer for preheating ammonia. The decomposing layer decomposes the ammonia. The fuel combusting layer supplies the decomposition heat of the ammonia to the decomposing layer. The heat exchanging layer for preheating air preheats air.
Abstract translation: 目的：提供一种用于分解氨的微通道反应器和使用其的氨分解方法，以通过在金属薄板的表面上堆叠多个微通道层并向金属供应热量来有效地实施氨分解过程 薄板。 构成：用于分解氨（100）的微通道反应器包括堆叠在上板和下板之间的上板（110），下板（130）和微通道层（120）。 微通道层包括用于预热氨（121）的热交换层，用于回收热量的热交换层（122），分解层（124），燃料燃烧层（125）和用于预热的热交换层 空气（127）。 用于预热氨的热交换层将一部分反应热量提供给氨。 用于回收热量的热交换层将热量供给流过热交换层的氨，用于预热氨。 分解层分解氨。 燃料燃烧层将氨的分解热量提供给分解层。 用于预热空气的热交换层预热空气。
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公开(公告)号：KR1020110022863A
公开(公告)日：2011-03-08
申请号：KR1020090080341
申请日：2009-08-28
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , C22B3/14 , C22B1/005 , C22B3/08 , C22B7/007 , C22B7/008 , C22B34/345
Abstract: PURPOSE: A method of collecting valuable metal and sulfur from spent petroleum catalyst is provided to extract valuable metal and sulfur from spent petroleum catalyst in a simple and economical way. CONSTITUTION: A method of collecting valuable metal and sulfur from spent petroleum catalyst is as follows. Spent petroleum catalyst is washed with acetone, and carbon and oil components are removed from the spent petroleum catalyst surface. The spent petroleum catalyst is washed with CS2 and dried in order to remove sulfur and enhance the leaching rate of molybdenum. The elementary sulfur components molten in the CS2 are collected. The spent petroleum catalyst is alkalified with (NH4)2CO3 and valuable metal is collected. The leaching residue produced in the step of collecting valuable metal is treated with sulfuric acid and valuable metal is collected.
Abstract translation: 目的：从废石油催化剂中收集有价金属和硫的方法，以简单经济的方式从废石油催化剂中提取有价值的金属和硫。 构成：从废石油催化剂中收集有价金属和硫的方法如下。 用丙酮洗涤废石油催化剂，从废石油催化剂表面除去碳和油组分。 废石油催化剂用CS2洗涤并干燥以除去硫并提高钼的浸出速率。 收集CS2中熔融的元素硫成分。 废石油催化剂用（NH4）2CO3碱化，收集有价值的金属。 收集贵重金属步骤中产生的浸出残渣用硫酸处理，收集有价值的金属。
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Patent Agency Ranking
公开(公告)号：KR1020110020509A
公开(公告)日：2011-03-03
申请号：KR1020090078158
申请日：2009-08-24
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , C22B7/009 , C22B1/005 , C22B3/08 , C22B7/007
Abstract: PURPOSE: A recovery method of valuable metals by pretreatment of spent petroleum catalyst and sulfuric acid is provided to prevent environmental pollution and leach/recover valuable metals with a simple process by removing harmful components from spent petroleum catalyst before leaching. CONSTITUTION: A recovery method of valuable metals by pretreatment of spent petroleum catalyst and sulfuric acid is as follows. Spent petroleum catalyst is washed with acetone and dried in order to remove carbon and oil components from the surface of the spent petroleum catalyst. The oil-removed spent petroleum catalyst is treated with a sulfuric acid leaching method in order to leach valuable metals. The spent petroleum catalyst is pulverized before leaching so as to increase the leaching speed.
Abstract translation: 目的：提供废石油催化剂和硫酸预处理对有价值金属的回收方法，通过在浸出前从废石油催化剂中除去有害成分，通过简单的工艺来防止环境污染和浸出/回收贵重金属。 构成：废石油催化剂和硫酸预处理对贵重金属的回收方法如下。 用丙酮洗涤废石油催化剂并干燥，以从废石油催化剂的表面除去碳和油组分。 用硫酸浸出法处理除油废石油催化剂，以浸出有价值的金属。 废沥青催化剂在浸出前粉碎，以提高浸出速度。
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公开(公告)号：KR1020110019603A
公开(公告)日：2011-02-28
申请号：KR1020090077209
申请日：2009-08-20
Applicant: 한국지질자원연구원
CPC classification number: B22F9/24 , B22F2201/01 , B22F2301/255 , B22F2304/054 , B82Y30/00 , B82Y40/00 , C01G5/00
Abstract: PURPOSE: A producing method of nano-silver particles from silver chloride using a slurry reduction method, and the nano-silver particles are provided to reduce processes for producing the nano-silver particles with the high added value. CONSTITUTION: A producing method of nano-silver particles comprises the following: inserting silver chloride powder into a reactor containing an ammonia solution and a polyvinyl-pyrrolidone solution, and stirring the mixture for obtaining ammonia complex silver; inserting a hydrazine solution as a reductant to the mixture, for reducing the ammonia complex silver by being reacted with hydrazine; and collecting solid particles from the mixture by solid-liquid separating, and drying the solid particles.
Abstract translation: 目的：使用浆料还原法从氯化银制备纳米银颗粒的制备方法，并提供纳米银颗粒以减少制备具有高附加值的纳米银颗粒的方法。 构成：纳米银颗粒的制造方法包括以下步骤：将氯化银粉末插入含有氨溶液和聚乙烯吡咯烷酮溶液的反应器中，并搅拌该混合物以获得氨络合物银; 将肼溶液作为还原剂插入混合物中，通过与肼反应来还原氨络合物银; 并通过固液分离从混合物中收集固体颗粒，并干燥固体颗粒。
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公开(公告)号：KR1020100023327A
公开(公告)日：2010-03-04
申请号：KR1020080082023
申请日：2008-08-21
Applicant: 한국지질자원연구원
CPC classification number: Y02P10/234 , C22B3/18 , C22B15/00
Abstract: PURPOSE: A method of a bacterial leaching of chalcopyrite using a silver catalyst is provided to improve a copper leaching rate by increasing a reaction speed of a bio-leaching process of chalcopyrite. CONSTITUTION: A method of a bacterial leaching of chalcopyrite comprises the following steps: adding chalcopyrite into a medium; controlling the pH of the medium; adding a silver anion into the medium; and injecting a microorganism into the medium for leaching. The silver anion is added into the medium for 0.04~0.64g per 1kg of chalcopyrite. The medium for this method is an inorganic medium including iron sulfate.
Abstract translation: 目的：提供使用银催化剂对黄铜矿进行细菌浸出的方法，通过提高黄铜矿生物浸出过程的反应速度来提高铜浸出速率。 构成：黄铜矿细菌浸出方法包括以下步骤：将黄铜矿加入培养基中; 控制培养基的pH值; 向介质中加入银阴离子; 并将微生物注入到用于浸出的介质中。 将银阴离子加入到介质中，每1kg黄铜矿为0.04〜0.64g。 该方法的介质是包括硫酸铁的无机介质。
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9.发明公开
公开(公告)号：KR1020050040010A
公开(公告)日：2005-05-03
申请号：KR1020030075112
申请日：2003-10-27
Applicant: 한국지질자원연구원
IPC: C22B3/18
Abstract: 본 발명은 심해저 망간단괴의 중간생성물인 난용성 매트로부터 미생물인 철산화균(
Thiobacillus ferrooxidans, 이하 T.ferrooxidans )을 이용하여 구리, 니켈, 코발트 등을 이온상태로 침출시키는 제련 방법에 관한 것으로서, 그 목적은 금속품위가 낮아 경제적인 가치가 적은 저품위 광석이나 광미 또는 처리시 황화가스의 다량 발생으로 인해 환경오염이 큰 광석이나 유가금속 중간생성물들로부터 미생물을 이용하여 유가금속을 경제적이며 환경친화적인 미생물 침출공정기술을 제공하는데 있다.
본 발명의 구성은 미생물침출공정기술을 제공함에 있어, 적절한 배지에 의한 미생물의 배양, 배양된 미생물의 회수, 미생물을 접종한 무기염배지에 의한 매트로부터 유가금속의 침출, 일정시간 침출반응 후 침출잔사로부터 침출액을 분리하는 방법 등을 특징으로 한다.-
公开(公告)号：KR1020050034027A
公开(公告)日：2005-04-14
申请号：KR1020030069807
申请日：2003-10-08
Applicant: 한국지질자원연구원
IPC: B22F1/02
Abstract: 본 발명은 무전해도금법에 의한 니켈-다이아몬드 복합분말 제조방법에 관한 것으로서, 그 목적은 연속적이고 균일하며 밀착성이 뛰어나고 내마모성이 우수한 코팅층을 가지며 연마용에 필요한 조성인 40-60wt%의 니켈이 다이아몬드 입자 표면에 코팅된 니켈-다이아몬드 복합분말 제조기술을 확립하기 위한 무전해니켈도금법을 제공하는데 있다.
본 발명의 구성은 합성다이아몬드 입자 표면에 니켈이 코팅된 복합분말을 제조하는 방법에 있어서, 코아로 사용되는 합성다이아몬드 입자의 표면을 SnCl
2 로 예민화 처리하고 PdCl
2 로 활성화 처리하는 전처리 단계와, NiSO
4 · 6H
2 O, Na acetate 및 Acetic acid가 용해된 황산니켈염 용액에 전처리된 다이아몬드를 장입시켜 반응조(Reaction bath)내에서 일정온도까지 가열시키는 단계와, 설정한 반응온도에 도달하면 Sodium hypophosphate와 Citric acid를 함유한 환원제를 일정속도로 공급하여 용액의 색깔의 변화와 수소가스가 발생하지 않는 시점까지 반응시키는 환원반응단계를 거쳐 니켈이 다이아몬드 입자 표면에 코팅되도록 하는 방법을 특징으로 한다.
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