会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Process and unit for the production of 1,2-dichloroethane
    • 用于生产1,2-二氯乙烷的方法和单元
    • US06252125B1
    • 2001-06-26
    • US09549682
    • 2000-04-14
    • Peter Porscha
    • Peter Porscha
    • C07C1702
    • C07C17/02C07C17/383Y02P20/124Y02P20/51C07C19/045
    • By a process for the production of 1,2-dichloroethane (EDC) by reaction of ethylene with chlorine in the liquid phase (direct chlorination), the heavy ends being separated from the obtained 1,2-dichloroethane in a heavy-ends column and in a downstream vacuum column and, for the purpose of heat recovery and heating of the column bottoms, a 1,2-dichloroethane part-stream from the direct chlorination passing through a heat exchanger (one attributed to each column) for indirect heat exchange with the bottom product of each column, the aim of the invention is to provide a solution in which the reaction enthalpy of the direct chlorination can be used in a variable manner, thus precluding the above-described disadvantages. This is achieved by using at least one falling-film evaporator for heating the column bottoms, the bottom product of the respective column being routed to the distributor at the head of the column.
    • 通过在液相(直接氯化)中通过乙烯与氯的反应生产1,2-二氯乙烷(EDC)的方法,将重质末端与重馏分塔中的所得1,2-二氯乙烷分离, 在下游真空塔中,为了塔底的热回收和加热,从直接氯化的1,2-二氯乙烷部分物流通过热交换器(一个归因于每个塔),用于与 每列的底部产物,本发明的目的是提供一种溶液,其中可以以可变的方式使用直接氯化的反应焓,从而排除上述缺点。这通过使用至少一种 用于加热柱底的降膜蒸发器,相应塔的底部产物被引导到塔顶部的分配器。
    • 7. 发明授权
    • Process for preparing monochlorinated hydrocarbons having a high isomeric purity
    • 具有高异构纯度的单氯代烃的方法
    • US06756513B2
    • 2004-06-29
    • US10219289
    • 2002-08-16
    • Manfred NeumannClemens Osterholt
    • Manfred NeumannClemens Osterholt
    • C07C1702
    • C07C17/16C07C22/04C07C19/01
    • Monochlorinated hydrocarbons of high isomeric purity are prepared by a process, which comprises: reacting a monoalcohol having an alkyl radical having from 3 to 20 carbon atoms with cyanuric chloride; and purifying the resulting monochlorinated hydrocarbon by distillation after separation of salts and washing the monochlorinated hydrocarbon with alkali. The invention relates to a process for preparing monochlorinated hydrocarbons which contain an alkyl radical having from 3 to 20 carbon atoms and have a high isomeric purity by reacting a monoalcohol having a hydrocarbon radical containing an alkyl radical having from 3 to 20 carbon atoms to which additional cycloaliphatic radicals, aryl radicals, aralkyl radicals and alkylaryl radicals may be bound with cyanuric chloride, separating off salts, washing the reaction mixture with alkali and purifying the resulting monochlorinated hydrocarbons by distillation.
    • 通过一种方法制备高异构纯度的一氯化烃,该方法包括:使具有3-20个碳原子的烷基的一元醇与氰尿酰氯反应; 并在分离盐后通过蒸馏对所得一氯化烃进行纯化,并用碱洗涤一氯化烃。本发明涉及一种制备含有具有3至20个碳原子并具有高异构纯度的单氯代烃的方法,其通过使 具有含有具有3至20个碳原子的烷基的烃基的一元醇,其中另外的脂环族基团,芳基,芳烷基和烷基芳基可以与氰尿酰氯结合,分离出盐,用碱洗涤反应混合物并纯化 通过蒸馏得到单氯化烃。
    • 9. 发明授权
    • Preparation of hexafluoropropylene from the pyrolysis of trifluoromethane and tetrafluoroethylene
    • 从三氟甲烷和四氟乙烯的热解制备六氟丙烯
    • US06403848B1
    • 2002-06-11
    • US09820631
    • 2001-03-30
    • Dong Ju MoonHong Gon KimByoung Sung AhnMoon Jo ChungYoung Soo Kwon
    • Dong Ju MoonHong Gon KimByoung Sung AhnMoon Jo ChungYoung Soo Kwon
    • C07C1702
    • C07C17/269C07C21/18
    • The present invention relates to a process for preparing hexafluoropropylene(CF3CF═CF2, HFP) from the pyrolysis of trifluoromethane(CHF3, R23) and tetrafluoroethylene(C2F4, TFE) and more particularly, to the process for preparing hexafluoropropylene from the pyrolysis of an admixture of R23 and TFE mixed in an appropriate molar ratio at below 900 which is lower than the conventional reaction temperature and longer residence time, after investigating the pyrolysis reaction of R23 and TFE by the computer simulation. The process for preparing HFP is performed by carefully controlling reaction temperature with heat balance resulted from an endothermic pyrolysis of R23 and an exothermic dimerization of TFE to prevent from carbon formation, recycling unreacted R23 and TFE in the product separated and purified from distillation column, adding fresh R23 additionally to keep an appropriate molar ratio of R23 and TFE, to improve a total yield of HFP and to minimize heat supply from outside.
    • 本发明涉及从三氟甲烷(CHF 3,R 23)和四氟乙烯(C 2 F 4,TFE)的热解制备六氟丙烯(CF 3 CF = CF 2,HFP)的方法,更具体地说,涉及从混合物的热解制备六氟丙烯的方法 通过计算机模拟研究R23和TFE的热解反应后,R23和TFE以适合的摩尔比混合在900以下,低于常规反应温度和较长的停留时间。 制备HFP的过程是通过仔细控制反应温度和由R23的吸热热解产生的热平衡和TFE的放热二聚反应来防止形成碳,循环未反应的R23和TFE,从蒸馏塔中分离和纯化,加入 新鲜的R23另外保持适当的R23和TFE的摩尔比,以提高HFP的总产率并最小化从外部的供热。