-
公开(公告)号：KR100427640B1
公开(公告)日：2004-04-27
申请号：KR1020010013481
申请日：2001-03-15
Applicant: 한국과학기술연구원
IPC: H01L27/00
CPC classification number: H01L51/0595 , B82Y10/00 , H01L51/0048 , Y10T428/30
Abstract: The present invention relates to carbon nanotube Resistance Inductance Capacitance (hereinafter referred as to "RLC") circuits. More particularly, the present invention is to provide the carbon nanotube prepared by chemical vapor deposition (hereinafter referred as to "CVD") on a surface of inorganic substrate to have advantages in: (i) its use for resistance, inductance and capacitance elements, (ii) the formation of micro circuits loaded with RLC characters and different inductor from the inductor used ferrite core and coil, (iii) heat resistance and impact resistance because it is made of carbon/inorganic composite materials, and (iv) the formation of nanotubes unlike conventional chip inductor.
Abstract translation: 碳纳米管电阻电感电容（以下称为“RLC”）电路技术领域本发明涉及碳纳米管电阻电感电容（以下称为“RLC”）电路。 更具体地说，本发明提供通过化学气相沉积（下文中称为“CVD”）在无机基材表面上制备的碳纳米管，其具有以下优点：（i）其用于电阻，电感和电容元件 ，（ii）由于使用铁氧体磁芯和线圈而形成具有RLC字符和不同电感器的微电路，并且（iii）由碳/无机复合材料制成的耐热性和耐冲击性，以及（iv） 纳米管不同于传统的片式电感器。
-
公开(公告)号：KR100322617B1
公开(公告)日：2002-03-18
申请号：KR1020000050275
申请日：2000-08-29
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: 본 발명은 촉매로서의 로듐 성분 및 조촉매로서의 염을 포함하는 로듐 촉매 시스템의 존재하에 올레핀을 하이드로포밀화, 카보알콕시화 또는 카르복실화하여 알데히드, 알킬에스터 또는 카복실산을 제조하거나, 이산화탄소를 수소화하여 포름산, 메틸포르메이트, 메탄올 및 에탄올 등을 제조하는 방법에 관한 것으로서, 로듐 촉매에 염 조촉매를 함께 사용하는 본 발명의 촉매시스템을 사용하면 상기 반응들을 높은 반응성, 선택성 및 촉매 안정성으로 수행할 수 있다
-
公开(公告)号：KR100288611B1
公开(公告)日：2001-07-12
申请号：KR1019980023258
申请日：1998-06-20
Applicant: 한국과학기술연구원
Abstract: 본 발명은 포름알데히드로 처리함으로써 고체 산 촉매를 개질하는 방법 및 이의 여러 가지 응용에 관한 것으로서, 본 발명에 따라 개질된 산촉매를 사용하면 합성가스로부터 높은 일산화탄소 전환율 및 선택도와 수율로 디메틸에테르를 제조할 수 있다. 본 발명에 따라 개질된 산 촉매는 메탄올의 탈수반응에 의한 디메틸에테르의 합성 이외에도, 에탄올의 탈수반응에 의한 에틸렌의 합성, 에틸렌옥사이드의 수화반응에 의한 에틸렌글리콜의 합성 등 다양한 반응에서 높은 전환율 및 수율을 제공할 수 있다.
-
公开(公告)号：KR1020010044872A
公开(公告)日：2001-06-05
申请号：KR1019990047916
申请日：1999-11-01
Applicant: 한국과학기술연구원
IPC: B01J23/72
CPC classification number: Y02P20/52
Abstract: PURPOSE: Provided is a process for synthesizing methanol in a high yield from a synthetic gas containing excessive carbon dioxide in the presence of a catalyst containing copper oxide, zinc oxide, zirconium oxide, and gallium oxide. CONSTITUTION: The methanol is synthesized from the synthetic gas containing more than 10volume% of the carbon dioxide in the presence of the catalyst at a temperature of 200 to 300deg.C, wherein the catalyst contains 10 to 90mol% of the copper oxide, 5 to 70mol% of the zinc oxide, 1 to 60mol% of the zirconium oxide, and 1 to 60mol% of the gallium oxide.
Abstract translation: 目的：提供在含有氧化铜，氧化锌，氧化锆和氧化镓的催化剂存在下，从含有过量二氧化碳的合成气体中以高产率合成甲醇的方法。 构成：在催化剂存在下，在200〜300℃的温度下，由含有10体积％以上二氧化碳的合成气体合成甲醇，其中，催化剂含有10〜90摩尔％的氧化铜，5〜 氧化锌70摩尔％，氧化锆1〜60摩尔％，氧化镓1〜60摩尔％。
-
公开(公告)号：KR1020000077499A
公开(公告)日：2000-12-26
申请号：KR1020000050275
申请日：2000-08-29
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: PURPOSE: A method for carboalkoxylating and carboxylating an olefin by using a rhodium catalytic system is provided which has high reactivity, selectivity and catalytic stability. CONSTITUTION: An alkyl ester or carboxylic acid are prepared by carboalkoxylating and carboxylating an olefin in the existence of a rhodium catalytic system comprising rhodium as a catalyst and salt as a co-catalyst. The salt contains an anion selected from the group consisting of PO4-, I-, Br-, Cl-, NO3-, CH3COO-, NCO-, CN-, CNO-, SCN-, CO3- and SO4- and a cation selected from the group consisting of NR1R2R3(R1, R2 and R3 are H or C1-15 alkyl), PPN+(PhP=N=PPh)+, alkaline metals, alkaline earth metals, transition metals, Al, Ga, Sn, Pb and In.
Abstract translation: 目的：提供一种通过使用铑催化体系对烯烃进行烷氧基化和羧化的方法，其具有高反应性，选择性和催化稳定性。 构成：通过在包含铑作为催化剂的铑催化体系和作为助催化剂的盐的存在下，通过使烯烃进行烷氧羰基化和羧化来制备烷基酯或羧酸。 该盐含有选自PO4-，I-，Br-，Cl-，NO3-，CH3COO-，NCO-，CN-，CNO-，SCN-，CO3-和SO4-的阴离子和选择的阳离子 由NR1R2R3（R1，R2和R3为H或C1-15烷基），PPN +（PhP = N = PPh）+，碱金属，碱土金属，过渡金属，Al，Ga，Sn，Pb和In 。
-
Patent Agency Ranking
公开(公告)号：KR1020000002118A
公开(公告)日：2000-01-15
申请号：KR1019980022698
申请日：1998-06-17
Applicant: 한국과학기술연구원
IPC: C07C47/02
Abstract: PURPOSE: The reactivity, selectivity and stability of rhodium catalyst in reaction of rhodium-based catalyst were improved by using salt as cocatalyst of rhodium. CONSTITUTION: The manufacturing method of aldehyde, alkylester or carboxylic acid by hydroformylation, carboalkoxylation or carboxylation of olefin and also formic acid, methyl formate, methanol, and ethanol by hydrogenation of carbon dioxide in the presence of rhodium catalyst system containing salt as cocatalyst was developed.
Abstract translation: 目的：通过使用盐作为铑助催化剂，改善了铑催化剂在铑基催化剂反应中的反应性，选择性和稳定性。 构成：开发了通过在含有盐作为助催化剂的铑催化剂体系存在下，通过二氧化碳的氢化，通过加氢甲酰化，烯烃和甲酸，甲酸甲酯，甲酸和乙醇的羰基化，羰基化或羧基化来制备醛，烷基酯或羧酸。 。
-
-
-
公开(公告)号：KR1019960005512B1
公开(公告)日：1996-04-25
申请号：KR1019920020188
申请日：1992-10-30
Applicant: 한국과학기술연구원
IPC: C07C53/08
CPC classification number: Y02P20/584
Abstract: To produce methyl acetate, acetic acid, acetic anhydride in the same operation line, it is required to have five step : 1st step-methanol is changed to acetic acid and methyl acetate by gas phase CO carbonyl reaction under carbonyl catalyst and halide co-catalyst; 2nd step-from column bottom, acetic acid is seperated and recovered, low Bp.compound of co-catalyst and methyl acetate is seperated in column top section; 3rd step-seperated methyl acetate from 2nd step is distilled and unrecovered methyl acetate is sent to 2nd carbonyl reactor with co-catalyst; 4th step-by second carbonyl reaction, methyl acetate and co-catalyst from 3rd step is synthesized to acetic anhydride; 5th step - acetic anhydride is seperated from co-catalyst and seperated co-catalyst is recycled to 1st carbonyl reactor. Compared with a known process, this method is simple and increases productivity.
Abstract translation: 为了在相同的操作线上生产乙酸甲酯，乙酸，乙酸酐，需要有五个步骤：在羰基催化剂和卤化物助催化剂下，通过气相CO羰基反应将第一步甲醇变为乙酸和乙酸甲酯 ; 从塔底第二步，分离回收乙酸，在塔顶部分离出低沸点的助催化剂和乙酸甲酯。 蒸馏第二步骤的第三步分离的乙酸甲酯，并将未回收的乙酸甲酯送入具有助催化剂的第二羰基反应器; 第四步第二次羰基反应，将乙酸甲酯和第三步助催化剂合成为乙酸酐; 第五步 - 将乙酸酐与助催化剂分离，将分离的助催化剂再循环至第一羰基反应器。 与已知的方法相比，该方法简单，提高了生产效率。
-
公开(公告)号：KR1019960003797B1
公开(公告)日：1996-03-22
申请号：KR1019920025281
申请日：1992-12-23
Applicant: 한국과학기술연구원
IPC: B01J31/20
CPC classification number: C07C51/54 , B01J21/18 , B01J23/58 , B01J23/8946 , B01J27/06 , B01J31/0231 , B01J31/1616 , B01J31/20 , B01J31/2404 , B01J31/40 , B01J2231/34 , B01J2531/822 , C07C51/12 , C07C67/36 , Y02P20/584 , C07C53/08 , C07C53/12 , C07C69/14
Abstract: Acetic acid is prepared by the reaction of gaseous methanol and carbon monoxide at the ratio of 1:0.1 - 1:100 mole, 97.3 kg/cm2(1,000 psi), 100-400 degree C in the presence of catalyst and halogen containing co-catalyst such as CH3I, CH3Br, CH3Cl, I2, Br2, Cl2, HI, HBr and HCl. 0.1-20 Wt. % of rhodium compound on the volume of inactive carrier is solved in aqueous or organic solvent. Obtained compound is carried with 1-1000 mole % of alkali metal, alkali earth metal or transition metal on the volume of rhodium, and calcinated at 100-150 degree C to give the carbonylation catalyst.
Abstract translation: 乙酸通过在催化剂存在下以1:0.1-1:100摩尔，97.3kg / cm 2（1,000psi），100-400℃的比例的气态甲醇和一氧化碳的反应制备， 催化剂如CH3I，CH3Br，CH3Cl，I2，Br2，Cl2，HI，HBr和HCl。 0.1-20 Wt ％的铑化合物对无活性载体的体积溶解在水溶液或有机溶剂中。 得到的化合物以1-1000摩尔％的碱金属，碱土金属或过渡金属在铑体积上进行，并在100-150℃下煅烧，得到羰基化催化剂。
-
-
-
-
-
-
-
-
-
Search Results
53
records
(took 0.027 seconds)
