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公开(公告)号：KR1020040013626A
公开(公告)日：2004-02-14
申请号：KR1020020046632
申请日：2002-08-07
Applicant: 한국화학연구원
IPC: C07C241/02
Abstract: PURPOSE: A method for preparing methoxy phenylhydrazine is provided, to improve the environmental-friendliness by suppressing the generation of heavy metal waste and performing the reaction under the mild condition by using a Pt-based catalyst. CONSTITUTION: The method comprises the steps of preparing methoxy phenylamine HCl salt by reacting methoxy phenylamine or its derivative with HCl; preparing methoxy phenyldiazonium salt from the methoxy phenylamine HCl salt; preparing methoxy phenylhydrazine sulfurous acid salt from the methoxy phenyl diazonium salt; and preparing methoxy phenylhydrazine HCl salt by hydrogenating the methoxy phenylhydrazine sulfurous acid salt by using a Pt-based catalyst. Preferably the Pt-based catalyst is selected from the group consisting of Pt/c, Pd/C and a Raney-Ni catalyst, and the hydrogenation is carried out at a temperature of 25-90 deg.C in the presence of water as a solvent.
Abstract translation: 目的：提供一种制备甲氧基苯肼的方法，通过抑制重金属废物的产生并通过使用Pt基催化剂在温和条件下进行反应来提高环境友好性。 构成：该方法包括通过甲氧基苯胺或其衍生物与HCl反应制备甲氧基苯胺盐酸盐的步骤; 从甲氧基苯胺HCl盐制备甲氧基苯基重氮盐; 由甲氧基苯基重氮盐制备甲氧基苯肼亚硫酸盐; 并通过使用Pt基催化剂氢化甲氧基苯肼亚硫酸盐制备甲基苯肼HCl盐。 优选Pt基催化剂选自Pt / c，Pd / C和Raney-Ni催化剂，氢化在25-90℃的温度下，在水存在下进行 溶剂。
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公开(公告)号：KR100277202B1
公开(公告)日：2001-01-15
申请号：KR1019980022072
申请日：1998-06-12
Applicant: 한국화학연구원
IPC: H01F1/00
Abstract: 본 발명은 NiCuZn 페라이트 페이스트에 관한 것으로서, 더욱 상세하게는 다음 화학식 1로 표시되는 NiCuZn 페라이트 분말에 바인더 성분으로 폴리비닐부티랄-비닐알코올-비닐아세테이트 공중합체가 함유됨으로써 그린쉬트를 정밀하게 적층하여 더 작은 칩을 제조할 수 있을 뿐만 아니라 고가의 펀칭기를 구입하지 않아도 되며, 주요 적층공정을 스크린 프린팅 방법으로 모두 행할 수 있으므로 초기투자 뿐만 아니라 유지비용도 절약할 수 있는 장점이 있고, 적층형 칩 인덕터(inductor), 트랜스포머(transformer) 또는 저항이나 콘덴서(condensor)를 복합시킨 하이브리드 칩(hybrid chip) 부품의 제조시에 자성체층의 형성에 알맞고, 우수한 평활성과 분산 안정성을 갖는 NiCuZn 페라이트 페이스트에 관한 것이다.
Ni
x Cu
y Zn
z O·Fe
2 O
3
상기 화학식 1에서 x는 0.1 ∼ 0.55, y는 0.15 ∼ 0.3, z는 0.3 ∼ 0.75이고, x+y+z=1이다.-
公开(公告)号：KR1020000001699A
公开(公告)日：2000-01-15
申请号：KR1019980022072
申请日：1998-06-12
Applicant: 한국화학연구원
IPC: H01F1/00
Abstract: PURPOSE: NiCuZn ferrite paste is proper to a magnetic layer in manufacturing a hybrid chip component, and has a superior smoothing and a dispersion stability. CONSTITUTION: NiCuZn ferrite paste includes a co-polymer of polyvinylbutyral-vinylalcohol-vinylacetate as a binder component and NiCuZn ferrite indicated as a chemical equation 1(NixCuyZnzO * Fe2O3), where x=0.1¯0.55, y=0.15¯0.3, z=0.3¯0.75, x+y+z=1. Accordingly, the NiCuZn ferrite paste minutely accumulates a green sheet, makes a smaller chip, and does not need a punching machine.
Abstract translation: 目的：NiCuZn铁氧体浆料在制造混合芯片部件时适用于磁性层，具有优异的平滑性和分散稳定性。 构成：NiCuZn铁氧体糊包括聚乙烯醇缩丁醛 - 乙烯基乙酸乙烯酯作为粘合剂成分的共聚物，NiCuZn铁氧体表示为化学式1（NixCuyZnzO * Fe2O3），其中x = 0.1〜0.55，y = 0.15〜0.3，z = 0.3〜0.75，x + y + z = 1。 因此，NiCuZn铁氧体糊料微生物堆积生片，制成较小的芯片，不需要冲孔机。
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公开(公告)号：KR1019970010742B1
公开(公告)日：1997-06-30
申请号：KR1019940016816
申请日：1994-07-13
Applicant: 한국화학연구원
Abstract: As a characteristic of the material, the power of PTFE powder is capable of lumping spontaneously even at the room temperature of 20-30 degree C. As it is hard to granulate this lumpy powder, it is cooled down to the temperature below 20 degree C and is used in a fine powder state. This PETE powder is fed to the distributor(6) of the granulation device through the powder injecting hopper(5). In the distributor, the supplied powder is pressed against the inner wall of the distributor, before it is mixed with water by the diffusing wing(6) and the centrifugal force in the distributor.
Abstract translation: 作为材料的特征，PTFE粉末的功率即使在20-30℃的室温也能够自发结块。由于难以将该块状粉末造粒，将其冷却至低于20℃的温度 并以细粉状使用。 该PETE粉末通过粉末注入料斗（5）送入造粒装置的分配器（6）。 在分配器中，所供应的粉末在通过扩散翼（6）与水与分配器中的离心力混合之前被压靠在分配器的内壁上。
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Patent Agency Ranking
公开(公告)号：KR1019960003913A
公开(公告)日：1996-02-23
申请号：KR1019940016816
申请日：1994-07-13
Applicant: 한국화학연구원
Abstract: 목적 : 본원 발명은 폴리테트라플루오로에틸렌 입상 분말의 조립방법 및 그 장치에 관한 것이다.
구성 : 직경 100㎛ 이하의 PTFE 미세분말을 직경 200㎛이상의 몰딩용 PTFE 입상 분말로 조립함에 있어서, 조립조 쟈켓(2)이 있고, 그 조립조 자켓(2)의 상부에 교반모터(3)가 있고, 그 조립조 쟈켓(2) 내측의 조립조 본체(1)내에 온도 측정계(4), 원료분말 공급호퍼(5), 그리고 교반모터(3)와 연결된 교반축(7)의 하단에 교반날개(8)가 각각 설치되고, 교반축(7)을 중심으로 하여 회전토록 분배기(6)가 설치되어서 이루어진 폴리테트라플루오로에틸렌의 조립방법 및 그 장치이다.-
公开(公告)号：KR1019950006890B1
公开(公告)日：1995-06-26
申请号：KR1019920016937
申请日：1992-09-17
Applicant: 한국화학연구원
IPC: C07C211/52
Abstract: The preparation method for 2,4,6-trichloro aniline (I) consists of (1) reacting aniline with hydrogen chloride gas (II) to form aniline salt (III), (2) reacting (III) with (II) to form (I) upto 30%, (3) reaction reacting (III) with (II) to 90-95%. (II) is injected into (3) through (2) and (1) reactor, and finally into water trap to form HCl. After reaction, batch (2) is set at first position. 80% yield and 97% purity. (I) is useful as intermediate for dyes, pigments, agrochemicals, coating agents of color film.
Abstract translation: 2,4,6-三氯苯胺（I）的制备方法由（1）使苯胺与氯化氢气体（II）反应形成苯胺盐（III），（2）使（III）与（II）反应形成 （I）至多30％，（3）使反应（III）与（II）反应至90-95％。 （II）注入到（3）到（2）和（1）反应器中，最后进入捕集阱以形成HCl。 反应后，将批次（2）设置在第一位置。 80％产率和97％纯度。 （I）可用作染料，颜料，农用化学品，彩色涂膜剂的中间体。
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公开(公告)号：KR1019920002224B1
公开(公告)日：1992-03-20
申请号：KR1019880003587
申请日：1988-03-31
Applicant: 한국화학연구원
IPC: C01B25/32
Abstract: The method for producing a high purity dicalcium phosphate (CaHPO4 2H2O) is characterized by overflow-reacting a mixture of calcium chloride as a byproduct in the ammonia-soda process and phosphoric acid with a mixted gas of ammonia (A) and air (B) [mixing ratio of (A):(B) is 1:0.55-1.65 . In the reaction, the pH of the first, the second and the third reactor is each 0.5-1.8, 2.4-4.5 and 5.0- 6.5. The produced CaHPO4 2H2O is used as an abrasive agent for a toothpaste.
Abstract translation: 高纯度磷酸二钙（CaHPO 4·2H 2 O）的制造方法的特征在于，使氨化钠工序中的氯化钙作为副产物的混合物与氨（A）和空气（B）的混合气体的磷酸进行溢流反应， （A）:( B）的混合比为1:0.55〜1.65。 在反应中，第一，第二和第三反应器的pH分别为0.5-1.8,2.4-4.5和5.0-6.5。 所生产的CaHPO 4·2H 2 O用作牙膏的研磨剂。
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公开(公告)号：KR101159078B1
公开(公告)日：2012-06-25
申请号：KR1020100127912
申请日：2010-12-14
Applicant: 한국화학연구원
Abstract: PURPOSE: A method for measuring concentration of mercury is provided to distinguish elementary mercury or mercury oxide by controlling vapor. CONSTITUTION: A method for measuring concentration of mercury comprises: a step of adsorbing elementary mercury and mercury oxide in an analyte; a step of irradiating the adsorbent by microwave under inactive atmosphere gas to measure the amount of detached elementary mercury; and a step of irradiating the adsorbent by microwave under reducible atmosphere gas to measure detached mercury oxide. The inactive atmosphere gas is helium, nitrogen, argon, or mixture thereof. The reducible atmosphere gas is hydrogen, formaldehyde, or hydrocarbon.
Abstract translation: 目的：提供一种测量汞浓度的方法，以通过控制蒸汽来区分基本的汞或氧化汞。 构成：测量汞浓度的方法包括：在分析物中吸附初级汞和氧化汞的步骤; 通过微波在惰性气氛气体下照射吸附剂以测量分离的基本汞的量的步骤; 以及通过微波在可还原气氛气体下照射吸附剂以测量脱离的氧化汞的步骤。 惰性气氛气体是氦，氮，氩或其混合物。 可还原气氛是氢气，甲醛或烃。
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