-
公开(公告)号：KR100508694B1
公开(公告)日：2005-08-17
申请号：KR1020030001083
申请日：2003-01-08
Applicant: 한국화학연구원
IPC: C07D305/08
Abstract: 본 발명은 헥사플루오로프로필렌옥사이드의 제조방법에 관한 것으로, 더욱 상세하게는 헥사플루오로프로필렌(HFP)이 포함된 유기상과 산화제가 포함된 수용액상을 상전이 촉매하에서 액체-액체 계면 반응을 수행함에 있어, 상기 상전이 촉매와 함께 불소계 계면활성제를 첨가하여 유기상과 수용액상의 계면에서의 반응면적을 넓혀 반응성을 향상시킴으로써 기존의 방법에 비해 헥사플루오로프로필렌옥사이드의 전환율을 월등하게 향상시킬 뿐만 아니라 반응초기의 발열반응으로 인한 온도 상승효과를 줄임으로 반응온도를 일정하게 유지시키는 효과를 가진 헥사플루오로프로필렌옥사이드의 제조방법에 관한 것이다.
-
公开(公告)号：KR1020040051775A
公开(公告)日：2004-06-19
申请号：KR1020020079440
申请日：2002-12-13
Applicant: 한국화학연구원
IPC: C07C17/269
Abstract: PURPOSE: A method for preparing dichloroiodoperfluorobutane by using a low temperature radical initiator is provided, to improve the stability of process, to reduce the cost of apparatus and to enhance conversion rate and yield. CONSTITUTION: The method comprises the step of mixing dichloroiodoperfluoroethane and tetrafluoroethylene with a low temperature radical initiator to prepare dichloroiodoperfluorobutane by telomerization, wherein the radical initiator has a half life of 1-15 hours at a temperature of -1- deg.C or less and the telomerization is carried out at a temperature of 35-80 deg.C and a pressure of 7-10 atom. Preferably the low temperature radical initiator is selected from the group consisting of diisopropyl peroxydicarbonate, t-butyl peroxypivalate and t-butyl peroxy-2-ethylhexanoate.
Abstract translation: 目的：提供使用低温自由基引发剂制备二氯二氟全氟丁烷的方法，以提高工艺的稳定性，降低设备成本，提高转化率和产率。 方案：该方法包括将二氯二氟代全氟乙烷和四氟乙烯与低温自由基引发剂混合以通过调聚制备二氯代全氟丁烷的步骤，其中自由基引发剂在-1℃或更低的温度下具有1-15小时的半衰期， 调聚在35-80℃的温度和7-10个原子的压力下进行。 优选地，低温自由基引发剂选自过氧化二碳酸二异丙酯，过氧化新戊酸叔丁酯和过氧-2-乙基己酸叔丁酯。
-
公开(公告)号：KR1020040063606A
公开(公告)日：2004-07-14
申请号：KR1020030001083
申请日：2003-01-08
Applicant: 한국화학연구원
IPC: C07D305/08
Abstract: PURPOSE: A process for preparing hexafluoropropylene oxide is provided, thereby significantly improving conversion rate of hexafluoropropylene oxide by increasing the reaction area in the interface between the organic phase and water-soluble phase, and reducing the temperature increase at an early stage of the reaction to maintain the constant reaction temperature. CONSTITUTION: The process for preparing hexafluoropropylene oxide comprises the steps of: liquid-liquid interface reacting the organic phase containing hexafluoropropylene(HFP) with the water-soluble phase containing an oxidizing agent in the presence of phase transition catalyst and 0.001 to 0.01 mole% of fluorine surfactant of formula (I), CnF2n=1C2H4O(C2H4O)mH, wherein m is mole number of ethylene oxide, 6 and 12; and n is an integer of 4 to 12; and the mole ratio of organic phase and water-soluble phase is 1:2 to 1:7.
Abstract translation: 目的：提供一种制备六氟环氧丙烷的方法，从而通过增加有机相和水溶性相界面的反应面积，显着提高六氟环氧丙烷的转化率，并将反应初期的温度升高降低至 保持反应温度恒定。 构成：制备六氟环氧丙烷的方法包括以下步骤：在相变催化剂存在下使含有六氟丙烯（HFP）的有机相与含有氧化剂的水溶性相反应的液 - 液界面和0.001至0.01摩尔％ 式（I）的氟表面活性剂，CnF2n = 1C2H4O（C2H4O）mH，其中m为环氧乙烷的摩尔数，6和12; n为4〜12的整数。 有机相和水溶性相的摩尔比为1:2至1:7。
-
-
Search Results
3
records
(took 0.016 seconds)
