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公开(公告)号：KR1019950014217B1
公开(公告)日：1995-11-23
申请号：KR1019920025984
申请日：1992-12-29
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: Preparation of 1,1-dichloro-1-fluoroethane comprises (A) introducing excess 1,1,1-trichloroethane and anhydrous hydrogen fluoride into reactor(1) through pipes(2,3) and continuously reacting them in a mole ratio of 100:1-1:1 at 60-200 deg.C and 3-15 bars in the liquid phase ; (B) introducing gas mixture of reaction product and unreacted reactant into the lower part of distillation tower(6) through pipe(4) ; (C) contacting the mixture with liquid reflux from the top and recycling high b.p. composition to reactor(1) and condensing high volatile composition in condenser(8) ; (D) separating liquid-gas mixture from the condenser(8) into inorganic, organic and vapor layers in separator(10) ; (E) recycling inorganic layer and part of organic layer to the upper part of the tower and discharging gas layer through pipe(13) of the separator and the rest of organic layer through pipe(12), which is further refined to give 1,1-dichloro-1-fluoroethane.
Abstract translation: 1,1-二氯-1-氟乙烷的制备包括（A）通过管道（2,3）将过量的1,1,1-三氯乙烷和无水氟化氢引入反应器（1）中，并以摩尔比100 ：1-1：1，60-200℃，液相3-15巴; （B）通过管道（4）将反应产物和未反应的反应物的气体混合物引入蒸馏塔（6）的下部; （C）将混合物与顶部的液体回流接触并循环高沸点 将组合物与反应器（1）反应并在冷凝器（8）中冷凝高挥发性组合物; （D）将液体 - 气体混合物从冷凝器（8）分离成分离器（10）中的无机，有机和蒸气层; （E）将无机层和有机层的一部分回收到塔的上部，并通过管（12）的管（13）和隔板的管（13）排出气层，进一步精制， 1,1-二氯-1-氟乙烷。
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公开(公告)号：KR1019950011101B1
公开(公告)日：1995-09-28
申请号：KR1019920020327
申请日：1992-10-31
Applicant: 한국과학기술연구원
IPC: C07C19/08
Abstract: The continuous production of 1,1-dichloro-1-fluoroethane(HCFC-1416) comprises (a) continuously liquid phase reacting 1,1,1- trichloroethane with an excessive amount of an anhydrous hydrofluoric acid in the reactor at 4-20 bar and 60-130 deg.C., (b) contacting and rectifying the produced gas and the anhydrous hydrofluoric acid to recycle a low volatile material of the anhydrous hydrofluoric acid to the reactor, and to condense an azeotropic mixture of an organic material and the hydrofluoric acid and high volatile material of a hydrochloric acid in the condenser, (c) separating an inorganic layer(HF), an organic layer and a gas layer(HCl) from the liquid-gas mixture in the layer separator, and (d) purifying the exhausted organic layer. The HCFC-1416 is a CFC substitute material
Abstract translation: 连续生产1,1-二氯-1-氟乙烷（HCFC-1416）包括（a）将反应器中的1,1,1-三氯乙烷与过量的无水氢氟酸在4-20巴下连续液相反应 和60-130℃，（b）使产生的气体和无水氢氟酸接触和精馏，将无水氢氟酸的低挥发性物质再循环到反应器中，并冷凝有机材料和 冷凝器中的氢氟酸和盐酸的高挥发性物质，（c）从层间隔离器中的液 - 气混合物分离无机层（HF），有机层和气层（HCl），和（d） 净化耗尽的有机层。 HCFC-1416是一种氟氯化碳替代材料
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Patent Agency Ranking
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公开(公告)号：KR1019920001665B1
公开(公告)日：1992-02-22
申请号：KR1019890019930
申请日：1989-12-28
Applicant: 한국과학기술연구원
Abstract: A reaction equipment to react chlorofluoro carbon with bromine consists of (A) two reaction tubes connected to each other, (B) alumina refractories combined with inner tubes connected to reactants feeding tube and reaction products tube, (C) two heating tubes joined with reaction tubes, (D) alumina refractories having an injection hole for thermo-couple and a passage around it, which are fabricated with two reaction tubes of molten alumina, (E) a reaction chamber formed by sealing with an adhesive the joint part of two heating tubes and thermocouple injection hole, (F) metal housing around the reaction chamber, and (G) and outer tube connected to inner tube exposed to outside.
Abstract translation: 将氯氟碳与溴反应的反应设备包括：（A）两个反应管相互连接，（B）氧化铝耐火材料与连接反应物进料管和反应产物管的内管结合，（C）两个加热管与反应 管，（D）具有用于热电耦合的注入孔和围绕其的通道的氧化铝耐火材料，其由两个熔融氧化铝反应管制成，（E）通过用粘合剂密封两个加热的接合部分形成的反应室 管和热电偶注入孔，（F）反应室周围的金属外壳，（G）和外管连接到暴露于外部的内管。
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