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公开(公告)号：KR100430905B1
公开(公告)日：2004-05-10
申请号：KR1020010048548
申请日：2001-08-11
Applicant: 한국과학기술연구원
IPC: C08F38/00
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for preparing dimethyl dipropargylmalonate polymer having the hexagonal ring structure is provided, to reduce the pollution due to an organic solvent and to prevent the production of two different structured cyclic polymers by not using an organic solvent. CONSTITUTION: The method comprises the step of cyclic polymerizing dimethyl dipropargylmalonate monomer by using supercritical or subcritical carbon dioxide as a solvent in the presence of a transition metal chloride catalyst. Preferably the reaction temperature is 15-100 deg.C, the reaction pressure is 50-400 atm, and the reaction time is 24 hours or less.
Abstract translation: 目的：提供一种制备具有六方环结构的二炔丙基丙二酸二甲酯聚合物的方法，以减少由有机溶剂引起的污染并防止不使用有机溶剂产生两种不同结构的环状聚合物。 构成：该方法包括在过渡金属氯化物催化剂存在下，通过使用超临界或亚临界二氧化碳作为溶剂使二炔丙基丙二酸二甲酯单体循环聚合的步骤。 优选反应温度为15-100℃，反应压力为50-400atm，反应时间为24小时或更短。
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公开(公告)号：KR1020030014518A
公开(公告)日：2003-02-19
申请号：KR1020010048548
申请日：2001-08-11
Applicant: 한국과학기술연구원
IPC: C08F38/00
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for preparing dimethyl dipropargylmalonate polymer having the hexagonal ring structure is provided, to reduce the pollution due to an organic solvent and to prevent the production of two different structured cyclic polymers by not using an organic solvent. CONSTITUTION: The method comprises the step of cyclic polymerizing dimethyl dipropargylmalonate monomer by using supercritical or subcritical carbon dioxide as a solvent in the presence of a transition metal chloride catalyst. Preferably the reaction temperature is 15-100 deg.C, the reaction pressure is 50-400 atm, and the reaction time is 24 hours or less.
Abstract translation: 目的：提供一种制备具有六方环结构的二丙炔丙二酸二甲酯聚合物的方法，以减少由于有机溶剂引起的污染，并且通过不使用有机溶剂来防止两种不同的结构化环状聚合物的生成。 构成：该方法包括在过渡金属氯化物催化剂存在下，使用超临界或亚临界二氧化碳作为溶剂环状聚合二丙酰丙基丙二酸二甲酯的步骤。 反应温度优选为15-100℃，反应压力为50-400atm，反应时间为24小时以下。
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公开(公告)号：KR1020010038266A
公开(公告)日：2001-05-15
申请号：KR1019990046180
申请日：1999-10-23
Applicant: 한국과학기술연구원
IPC: A62D1/02
CPC classification number: A62D1/0092
Abstract: PURPOSE: A composition of a clean agent for a fire extinguisher containing CO2 and 1, 1, 1, 2, 3, 3, 3-heptafluoropropane(HFC-227ea) is provided, whose fire extinguisher efficiency is excellent and whose global warming index and price are low. CONSTITUTION: A clean agent for a fire extinguisher containing CO2 and HFC-227ea is composed of 0.1-99.9mol% of CO2 and 99.9-0.1mol% of HFC-23. And the agent is stored in the type of high-press liquefied gas so that a storage tank can be minimized and the price can be lowered.
Abstract translation: 目的：提供含有二氧化碳和1,1,1,2,3,3,3-七氟丙烷（HFC-227ea）灭火器的清洁剂组合物，其灭火剂效率优异，其全球变暖指数和 价格低。 构成：含有CO2和HFC-227ea的灭火器的清洁剂由0.1-99.9mol％的二氧化碳和99.9〜0.1mol％的HFC-23组成。 并且该试剂储存在高压液化气体的类型中，使得储罐可以最小化并且可以降低价格。
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公开(公告)号：KR1019970011701B1
公开(公告)日：1997-07-14
申请号：KR1019940008151
申请日：1994-04-19
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: The invention provides a gaseous phase reaction for producing difluoromethane (HFC 32) from dichloromethane (DCM) and excess amount of anhydrous hydrofluoric acid (AHF). The process comprises the steps of: filling with a alumina catalyst containing 2-10% by weight of chrome in a reactor; vaporizing DCM and AHF; reacting DCM and AHF whose mole ratio is from 1:2 to 1:10 at a temperature of 200-500 C under a pressure of up to 10 atm for 5-40 sec while supplying 0,002-0.3 mole of oxygen or 0.01-1.5 mole of air per 1 mole of DCM.
Abstract translation: 本发明提供了用于从二氯甲烷（DCM）和过量的无水氢氟酸（AHF）生产二氟甲烷（HFC32）的气相反应。 该方法包括以下步骤：在反应器中填充含有2-10重量％铬的氧化铝催化剂; 蒸发DCM和AHF; 在200-500℃的温度下，在高达10大气压的压力下将DCM和AHF的摩尔比为1:2至1:10反应5-40秒，同时提供0.002-0.3摩尔氧或0.01-1.5摩尔 的空气/ 1摩尔DCM。
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Patent Agency Ranking
公开(公告)号：KR1020040090348A
公开(公告)日：2004-10-22
申请号：KR1020030024497
申请日：2003-04-17
Applicant: 한국과학기술연구원
IPC: C07C51/285
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method for synthesizing terephthalic acid using a subcritical or supercritical fluid as a reaction medium is provided to reduce toxicity and erosion in a manufacturing device owing to excluding the use of a catalyst, thereby being safer and more economic as compared to the conventional methods. CONSTITUTION: The method for synthesizing terephthalic acid which includes the oxidization of para-xylene comprises the use of excessive amount of a subcritical or a supercritical fluid as a reaction medium and hydrogen peroxide or oxygen as an oxidizing agent for partial oxidization of para-xylene contained in a tank(A11), while excluding the use of a catalyst. The oxidization of para-xylene is carried out at 240-400deg.C under 220-300bar in a reactor(A4).
Abstract translation: 目的：提供使用亚临界或超临界流体作为反应介质合成对苯二甲酸的方法，以减少制造装置中的毒性和侵蚀，这是因为排除使用催化剂，因此与常规方法相比更安全和更经济 。 构成：包括对二甲苯氧化的对苯二甲酸的合成方法包括使用过量的亚临界流体或超临界流体作为反应介质，过氧化氢或氧气作为用于部分氧化对二甲苯的氧化剂 在罐中（A11），而不使用催化剂。 对二甲苯的氧化在240-400℃在220-300巴下在反应器（A4）中进行。
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公开(公告)号：KR1020000060614A
公开(公告)日：2000-10-16
申请号：KR1019990009081
申请日：1999-03-18
Applicant: 한국과학기술연구원
IPC: C07C33/14
CPC classification number: Y02P20/544
Abstract: PURPOSE: A method of extracting perillyl alcohol from orange peels using supercritical carbon dioxide is provided, that can produce perillyl alcohol useful as an antitumor agent in superior yield to a conventional methanol extracting method. CONSTITUTION: The method comprises the step of extracting the extract containing perillyl alcohol from orange peels by a supercritical fluid extractor which uses a carbon dioxide solvent as a supercritical fluid at higher temperature and pressure than a critical temperature and pressure of carbon dioxide. Specially, the extracting pressure is from 73 to 300 atm and the extracting temperature is from 32 to 100°C.
Abstract translation: 目的：提供使用超临界二氧化碳从桔皮提取紫苏醇的方法，其可以以常规甲醇提取方法生产具有优异产率的用作抗肿瘤剂的紫苏醇。 方案：该方法包括通过超临界流体萃取器从橙皮中提取含有紫苏醇的提取物的步骤，其在比二氧化碳的临界温度和压力更高的温度和压力下使用二氧化碳溶剂作为超临界流体。 提取压力特别为73〜300atm，萃取温度为32〜100℃。
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公开(公告)号：KR1020100045282A
公开(公告)日：2010-05-03
申请号：KR1020080104395
申请日：2008-10-23
Applicant: 한국과학기술연구원
CPC classification number: Y02P20/143 , Y02W30/70 , Y02W30/701 , Y02W30/702
Abstract: PURPOSE: A method of recycling a waste foam agent based on low-density polyethylene is provided is provided to remarkably reduce the amount of buried or burned waste low-density polyethylene. CONSTITUTION: A method of recycling a waste foam agent based on low-density polyethylene comprises the following steps: de-crosslinking the waste foam agent at 350~500 deg C with a reaction condition of the pressure of 5~30 mega pascals for 2~30 minutes using supercritical ethanol; and converting the waste foam agent based on the low-density polyethylene into a recycling low density polyethylene class resin. The waste foam agent based on the low-density polyethylene is the waste foam agent using either an organic peroxide cross-linking method or an electron beam cross-linking method.
Abstract translation: 目的：提供一种回收基于低密度聚乙烯的废发泡剂的方法，以显着减少埋藏或燃烧废弃物低密度聚乙烯的量。 构成：基于低密度聚乙烯的废发泡剂回收方法包括以下步骤：将350〜500℃的废泡沫体与5〜30兆帕的反应条件进行脱交，2〜 30分钟使用超临界乙醇; 并将基于低密度聚乙烯的废发泡剂转化为再循环低密度聚乙烯类树脂。 基于低密度聚乙烯的废发泡剂是使用有机过氧化物交联法或电子束交联法的废泡剂。
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公开(公告)号：KR100543526B1
公开(公告)日：2006-01-31
申请号：KR1020030024497
申请日：2003-04-17
Applicant: 한국과학기술연구원
IPC: C07C51/285
CPC classification number: Y02P20/544
Abstract: 본 발명은 반응매체로서 240 내지 400 ℃의 온도 범위 및 220 내지 300 bar의 압력 범위에 있는 과량의 고온고압수를 사용하고, 일체의 촉매를 사용하지 아니하며, 산화제로서 과산화수소 또는 산소를 사용하여 파라크실렌(para-xylene)을 산화시킴으로써 테레프탈산을 합성하는 방법에 관한 것으로, 기존의 테레프탈산 합성방법과 비교하여, 인체에 미치는 독성이 적고, 장치의 부식 속도가 감소하여, 보다 안전하고 경제적으로 테레프탈산을 제조할 수 있는 테레프탈산 합성방법을 제공한다.
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