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公开(公告)号：KR100391845B1
公开(公告)日：2003-07-16
申请号：KR1020000006402
申请日：2000-02-11
Applicant: 한국과학기술연구원
IPC: C07D317/14
CPC classification number: C07D317/36 , C07D317/38
Abstract: The present invention relates to a method to prepare alkylene carbonate of the formula (1)wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group;which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.
Abstract translation: 本发明涉及制备式（1）的亚烷基碳酸酯的方法，其中R 1和R 2各自独立地为H; C 1 -C 4烷基或苯基;该方法的特征在于使烯化氧与二氧化碳在包含a）金属卤化物[MXm]和b）吡啶或吡啶衍生物[Py]的催化剂体系存在下反应，其中Py选自 一组吡啶; M是选自Zn，Fe，Mn，Pb和In的金属原子; X是选自Cl，Br和I的卤素; m是2或3。
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公开(公告)号：KR100295283B1
公开(公告)日：2001-11-14
申请号：KR1019980057663
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
Abstract: 본 발명은 제 1 성분으로 디플루오로메탄(CH
2 F
2 , HFC-32), 제 2 성분으로 1,1,1,2-테트라플루오로에탄(CF
3 CH
2 F, HFC-134a)를 포함하고, 제 3 성분으로 1,1,1,2,3,3,3-헵타플루오로프로판(CH
3 CHFCF
3 , HFC-227ea), 이소부탄(C
4 H
10 R-600a) 및 1,1,1,2,3,3-헥사플루오로프로판(CHF
2 CHFCF
3 , HFC0236ea)으로 이루어진 군 중에서 선택된 어느 한 성분을 포함하는 HCFC-22 대체용 냉매 혼하물을 제공한다.-
公开(公告)号：KR1020010074658A
公开(公告)日：2001-08-04
申请号：KR1020010034611
申请日：2001-06-19
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/112 , C09K2205/12 , C09K2205/122 , C09K2205/43
Abstract: PURPOSE: A refrigerant composition is provided which shows the similar performance to HCFC-22 that is currently used by additionally mixing one constituent from RC-270, HFC-227ea, HFC-245cb, HFC-236ea, R-600, HFE-134 or HFE-245 to a mixture of HFC-32 and HFC-143a. CONSTITUTION: In a composition of a refrigerant mixture which can be used instead of HCFC-22, the refrigerant mixture comprises 20 to 70 wt.% of difluoromethane (CH3F2, HFC-32) as a first constituent, 10 to 70 wt.% of 1,1,1-trifluoroethane (CH3CF3, CFC-143a) as a second constituent, and 45 wt.% or less of cyclopropane (C3H6, RC-270) or butane (C4H10, R-600) as a third constituent, wherein each of the HFC-32, HFC-143a and RC-270 comprise 20 to 40 wt.%, 30 to 70 wt.% and 30 wt.% or less respectively, and wherein each of the HFC-32, HFC-143a and R-600 comprise 30 to 50 wt.%, 38 to 70 wt.% and 12 wt.% or less respectively.
Abstract translation: 目的：提供了一种制冷剂组合物，其显示了与通过额外混合来自RC-270，HFC-227ea，HFC-245cb，HFC-236ea，R-600，HFE-134的一种成分或目前使用的HCFC-22类似的性能 HFE-245与HFC-32和HFC-143a的混合物。 构成：在可用于代替HCFC-22的制冷剂混合物的组合物中，制冷剂混合物包含20至70重量％的作为第一组分的二氟甲烷（CH 3 F 2，HFC-32），10至70重量％ 作为第二成分的1,1,1-三氟乙烷（CH 3 CF 3，CFC-143a）和作为第三成分的环丙烷（C 3 H 6，RC-270）或丁烷（C 4 H 10，R-600）45重量％ HFC-32，HFC-143a和RC-270中的每一个分别包含20至40重量％，30至70重量％和30重量％或更少，并且其中每个HFC-32，HFC-143a和 R-600分别包含30至50重量％，38至70重量％和12重量％或更少。
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公开(公告)号：KR1020010011158A
公开(公告)日：2001-02-15
申请号：KR1019990030399
申请日：1999-07-26
Applicant: 한국과학기술연구원
IPC: C07D317/00
Abstract: PURPOSE: A method for preparing alkylene carbonate is provided which can synthesize high yield of alkylene carbonate under unstringent condition by using lithium halide as a catalyst. The catalyst has a high catalytic activity, and is easy to separate from a product and to reprocess the catalyst. CONSTITUTION: The alkaline carbonate of formula (1) is prepared by reacting alkylene oxide with carbon dioxide using one or more lithium halides selected from LiX (wherein, X=Cl, Br or I) as the catalyst, wherein R1 and R2 are independently hydrogen or C1-C4 alkyl. The conditions are as follows: 80-170deg.C of a reaction temperature and 10-100 atm of an air pressure.
Abstract translation: 目的：提供一种制备碳酸亚烷基酯的方法，其可以通过使用卤化锂作为催化剂，在非收缩条件下合成高产率的碳酸亚烷基酯。 催化剂具有高催化活性，并且容易与产物分离并重新加工催化剂。 构成：通过使用一种或多种选自LiX（其中，X = Cl，Br或I）的卤化锂作为催化剂使烯化氧与二氧化碳反应制备式（1）的碱式碳酸酯，其中R1和R2独立地为氢 或C 1 -C 4烷基。 条件如下：80-170℃的反应温度和10-100atm的空气压力。
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Patent Agency Ranking
公开(公告)号：KR1020000041711A
公开(公告)日：2000-07-15
申请号：KR1019980057665
申请日：1998-12-23
Applicant: 한국과학기술연구원
IPC: C09K5/04
CPC classification number: C09K5/045 , C09K2205/11 , C09K2205/112 , C09K2205/12 , C09K2205/43
Abstract: PURPOSE: A refrigerant mixture added one component of RC-270, HFC-227ea, HFC-245cb, HFC-236ea, R-600, HFE-134, and HFE-245 to a mixture of HFC-32 and HFC-143a additionally is provided which exhibits performance similar to HCFC-22. CONSTITUTION: A refrigerant mixture free from ozonosphere destruction danger, which can be used as a substitute for chlorodifluoromethane(CHClF2) comprises difluoromethane(CH3F2, HFC-32) as a first component, 1,1,1-trifluoroethane(CH3CF3, HFC-143a) as a second component and one component selected from the group of 1,1,1,2,3,3,3-heptafluoropropane(CF3CHFCF3, HFC-227ea), 1,1,1,2,3,3-hexafluoropropane(CHF2CHFCF3, HFC-235ea), butane(C4H10, R-600), bis(difluoromethyl)ether(CHF2OCHF2, HFE-134), and pentafluoroethylmethylether(CF3CF2OCH3, HFC-245) as a third component. The composition of HFC-32, HFC-143a and RC-270 is 20 to 40% by weight, 30 to 70% by weight and 0 to 30% by weight respectively.
Abstract translation: 目的：将HFC-32，HFC-227ea，HFC-245cb，HFC-236ea，R-600，HFE-134和HFE-245的一个组分加入到HFC-32和HFC-143a的混合物中， 具有类似于HCFC-22的性能。 构成：可用作替代氯二氟甲烷（CHClF 2）的不含臭氧层破坏危险的制冷剂混合物包括作为第一组分的二氟甲烷（CH 3 F 2，HFC-32），1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a ）作为第二成分和选自1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea），1,1,1,2,3,3-六氟丙烷（ CHF2CHFCF3，HFC-235ea），丁烷（C4H10，R-600），双（二氟甲基）醚（CHF2OCHF2，HFE-134）和五氟乙基甲基醚（CF3CF2OCH3，HFC-245）作为第三成分。 HFC-32，HFC-143a和RC-270的组成分别为20〜40重量％，30〜70重量％，0〜30重量％。
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公开(公告)号：KR1020000020035A
公开(公告)日：2000-04-15
申请号：KR1019980038445
申请日：1998-09-17
Applicant: 한국과학기술연구원
IPC: C07C43/12
Abstract: PURPOSE: 1,1-difluoroethyl methyl ether as a CFC substitutional material is prepared which protects a corrosion of apparatus, and decreases by-product by using alkali carbonate catalyst instead of strong base. CONSTITUTION: 1,1-Difluoroethylene and methanol are reacted at 30- 150°C in the presence of 1- 20 mole % of difluoroethylene alkali carbonate such as Li2CO3, Na2CO3, K2CO3, Rb2CO3 and CS2CO3 to give the title compound. Thus, 12.8 g of 1,1-difluoroethylene and 64 g of methanol are reacted at 80°C for 3 hours in the presence of 2.78 g of potassium carbonate to give the title compound.
Abstract translation: 目的：制备作为CFC取代材料的1,1-二氟乙基甲基醚，其保护装置的腐蚀，并且通过使用碱金属碳酸盐催化剂代替强碱来减少副产物。 构成：1,1-二氟乙烯和甲醇在1-20摩尔％的二氟乙烯碱金属碳酸盐如Li 2 CO 3，Na 2 CO 3，K 2 CO 3，Rb 2 CO 3和CS 2 CO 3的存在下，在30-150℃下反应，得到标题化合物。 因此，在2.78g碳酸钾存在下，将12.8g 1,1-二氟乙烯和64g甲醇在80℃下反应3小时，得到标题化合物。
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公开(公告)号：KR100152580B1
公开(公告)日：1998-10-15
申请号：KR1019950026126
申请日：1995-08-23
Applicant: 한국과학기술연구원
CPC classification number: C07C17/21 , B01J27/132 , B01J27/138 , C07C17/206 , C07C17/23 , C07C19/08 , C07C19/12
Abstract: 불화칼슘과, 삼산화크롬, 염화아연 및 염화제2철의 수용액을 혼합한후 에탄올과 반응시켜 얻어지는 생성물을 소성함으로써 제조된 촉매의 존재하에, 1단계 반응으로서, 1,1,1-트리플루오로-2-클로로에탄(HCFC-133a)과 불화수소를 반응시켜 1,1,1,2-테트라플루오로에탄(HFC-134a), 펜타플루오로에탄(HFC-125) 및 1,1,1,-트리플루오로에탄(HFC-143a)을 얻고, 2단계 반응으로서 1단계 반응생성물에 트리클로로에틸렌을 첨가하여 HCFC-133a를 제조한 다음 HFC-134a, HFC-125 및 HFC-143a를 분리하고 HCFC-133a를 1단계 반응으로 재순환시키는 것으로 이루어지는 2단계 기상반응에 의해, HFC-134a, HFC-125 및 HFC-143a를 동시에 제조하는 방법이 제공된다.
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公开(公告)号：KR1019960008640B1
公开(公告)日：1996-06-28
申请号：KR1019930025846
申请日：1993-11-30
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: The 1,1,1,2-tetrafluoroethane(HFC-134a) is made by; (a) separating hydrogen chloride and HFC-134a from HCFC-133a obtained by the reaction of trichloroethylene(TCE) and hydrogen fluorine(HF) in a reactor for 1,1,1-trifluoro-2-chloroethane(HCFC-133a); (b) producing HCFC-133a by the reaction of the remaining, unreacted TCE and HF; (c) making HFC-134a by the reaction of HCFC-133a and HF in the reactor for HFC-134a; (d) recycling the mixture of the efflux from the HFC-134a reactor and TCE to the reactor for HCFC-133a.
Abstract translation: 1,1,1,2-四氟乙烷（HFC-134a）由以下制成： （a）在1,1,1-三氟-2-氯乙烷（HCFC-133a）的反应器中通过三氯乙烯（TCE）和氢氟（HF）的反应得到的HCFC-133a分离氯化氢和HFC-134a; （b）通过剩余的未反应的TCE和HF的反应生产HCFC-133a; （c）通过HFC-134a反应器中HCFC-133a和HF的反应制备HFC-134a; （d）将来自HFC-134a反应器和TCE的流出物的混合物再循环到HCFC-133a的反应器中。
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