公开(公告)号：US5276223A

公开(公告)日：1994-01-04

申请号：US56765

申请日：1993-05-04

申请人： Hiromoto Ohno ,  Tatsuharu Arai ,  Kazuo Muramaki ,  Toshio Ohi ,  Hidetoshi Nakayama ,  Yoshitaka Shohji

发明人： Hiromoto Ohno ,  Tatsuharu Arai ,  Kazuo Muramaki ,  Toshio Ohi ,  Hidetoshi Nakayama ,  Yoshitaka Shohji

IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C17/38 ,  C07C17/383 ,  C07C19/08

CPC分类号： C07C19/08 ,  C07C17/206 ,  C07C17/21 ,  C07C17/38 ,  C07C17/383

摘要： A process for producing 1,1,1,2-tetrafluoroethane through a reaction of trichloroethylene with HF, which comprises the steps of:(a) allowing trichloroethylene to react with HF in a first reactor to form 1,1,1-trifluoro-2-chloroethane,(b) allowing 1,1,1-trifluoro-2-chloroethane to react with HF in a second reactor to form 1,1,1,2-tetrafluoroethane,(c) introducing the products of the above steps (a) and (b) into a first distillation column where the products are separated into a distillate containing 1,1,1,2-tetrafluoroethane and HCl as main components, a side-cut fraction containing 1,1,1-trifluoro-2-chloroethane and HF as main components and a bottom liquid containing HF as a main component and a small amount of trichloroethylene, and(d) introducing the distillate of the above step (c) into a second distillation column where HCl is recovered as a distillate and a 1,1,1,2-tetrafluoroethane fraction containing small amounts of 1,1,1-trifluoro-2-chloroethane and HF is discharged from the bottom of the second distillation column and introduced into a separately arranged purification step to recover 1,1,1,2-tetrafluoroethane, while the side-cut fraction discharged from the first distillation column is supplemented with HF to adjust the mixing ratio of HF and 1,1,1-trifluoro-2-chloroethane contained therein and recycled into the second reactor and the bottom liquid discharged from the first distillation column is supplemented with trichloroethylene and HF to adjust their mixing ratio and amounts and recycled into the first reactor. The process renders possible simplification of equipments and improvement of energy efficiency in production of 1,1,1,2-tetrafluoroethane.

摘要翻译： 一种通过三氯乙烯与HF的反应生产1,1,1,2-四氟乙烷的方法，其包括以下步骤：（a）使三氯乙烯与HF在第一反应器中反应形成1,1,1-三氟 - （b）在第二反应器中使1,1,1-三氟-2-氯乙烷与HF反应形成1,1,1,2-四氟乙烷，（c）引入上述步骤的产物（ a）和（b）进入第一蒸馏塔，其中将产物分离成含有1,1,1,2-四氟乙烷和HCl作为主要成分的馏出物，含有1,1,1-三氟-2 - 氯乙烷和HF作为主要成分，以及以HF为主要成分的底液和少量的三氯乙烯，（d）将上述步骤（c）的馏出物引入第二蒸馏塔，其中HCl作为馏出物回收 并且从中排出含有少量1,1,1-三氟-2-氯乙烷和HF的1,1,1,2-四氟乙烷馏分 第二蒸馏塔的底部并引入单独设置的纯化步骤以回收1,1,1,2-四氟乙烷，而从第一蒸馏塔排出的侧馏分添加HF以调节HF的混合比 和其中包含的1,1,1-三氟-2-氯乙烷并循环到第二反应器中，并且从第一蒸馏塔排出的底部液体补充三氯乙烯和HF以调节其混合比和量并再循环到第一反应器中。 该工艺可以简化设备，提高1,1,1,2-四氟乙烷生产能源效率。

公开(公告)号：US5345015A

公开(公告)日：1994-09-06

申请号：US90314

申请日：1993-07-13

申请人： Hiromoto Ohno ,  Makoto Miyamura ,  Tatsuharu Arai ,  Kazuo Muramaki ,  Toshio Ohi

发明人： Hiromoto Ohno ,  Makoto Miyamura ,  Tatsuharu Arai ,  Kazuo Muramaki ,  Toshio Ohi

IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/08

CPC分类号： C07C19/08 ,  C07C17/206 ,  C07C17/21

摘要： A process for producing 1,1,1,2-tetrafluoroethane from trichloroethylene and HF, which comprises introducing products of a reaction of trichloroethylene with HF, and products of a reaction of 1,1,1-trifluoro-2-chloroethane with HF into a first distillation column either separately or as a mixture thereof, recovering HCl as a distillate from the top of the first distillation column, and introducing the remainder into a second distillation column.

摘要翻译： 从三氯乙烯和HF制造1,1,1,2-四氟乙烷的方法，其包括将三氯乙烯与HF反应的产物和1,1,1-三氟-2-氯乙烷与HF反应的产物引入 单独或作为其混合物的第一蒸馏塔从第一蒸馏塔的顶部回收作为馏出物的HCl，并将剩余物引入第二蒸馏塔。

公开(公告)号：US5444171A

公开(公告)日：1995-08-22

申请号：US961869

申请日：1992-10-15

申请人： Hiromoto Ohno ,  Toshio Ohi ,  Hidetoshi Nakayama ,  Kazuo Muramaki

发明人： Hiromoto Ohno ,  Toshio Ohi ,  Hidetoshi Nakayama ,  Kazuo Muramaki

IPC分类号： C07C17/38 ,  C07C17/395

CPC分类号： C07C17/38 ,  C07C17/395

摘要： In the production of 1,1,1,2-tetrafluoroethane by reacting trichloroethylene with hydrogen fluoride, crude 1,1,1,2-tetrafluoroethane is highly purified by a method comprising subjecting the crude 1,1,1,2-tetrafluoroethane to preliminary purification to remove hydrogen chloride to a concentration of not higher than 2%, and bring the preliminarily purified 1,1,1,2-tetrafluoroethane containing one or more unsaturated impurities and hydrogen fluoride in an amount at least equimolar to the unsaturated impurities into contact with a fluorination catalyst in a vapor phase to decrease the content of the unsaturated impurities.

摘要翻译： 在通过使三氯乙烯与氟化氢反应制备1,1,1,2-四氟乙烷时，粗制1,1,1,2-四氟乙烷通过以下方法进行高度纯化，该方法包括将粗1,1,1,2-四氟乙烷 初步纯化以除去氯化氢至不高于2％的浓度，并将含有一种或多种不饱和杂质和氟化氢的预先纯化的1,1,1,2-四氟乙烷与不饱和杂质至少等摩尔量 与气相中的氟化催化剂接触以降低不饱和杂质的含量。

公开(公告)号：US07524479B2

公开(公告)日：2009-04-28

申请号：US10475777

申请日：2002-06-26

申请人： Kazuo Muramaki ,  Yoshihisa Sakamoto ,  Ryuji Yamamoto ,  Toshio Morita

发明人： Kazuo Muramaki ,  Yoshihisa Sakamoto ,  Ryuji Yamamoto ,  Toshio Morita

IPC分类号： D01F9/12

CPC分类号： B82Y30/00 ,  D01F9/127 ,  D01F9/133

摘要： A method for producing vapor grown carbon, including mixing a raw material gas containing an organic compound and an organo-transition metallic compound preliminarily heated preferably to a temperature of 100 to 450° C. with a carrier gas heated preferably to a temperature of 700 to 1,600° C., and introducing the resultant gas mixture into a carbon fiber production zone, wherein preferably a mixture of an aromatic compound and acetylene, ethylene, or butadiene is used as an organic compound. The method can include dissolving the transition metallic compound in a solvent, atomizing the resultant solution into fine droplets, evaporating the solvent in the droplets to thereby obtain fine particles of the transition metal compound, and introducing the drifting particles with an organic compound gas into the carbon fiber production zone. Vapor grown carbon fiber is thereby produced.

摘要翻译： 一种生产气相生长碳的方法，包括将预先加热至100至450℃的预先加热的有机化合物的原料气体和有机过渡金属化合物与优选加热至700℃的载气混合， 1600℃，将所得气体混合物引入碳纤维生产区，其中优选使用芳香族化合物和乙炔，乙烯或丁二烯的混合物作为有机化合物。 该方法可以包括将过渡金属化合物溶解在溶剂中，将所得溶液雾化成微小液滴，蒸发液滴中的溶剂，从而获得过渡金属化合物的细颗粒，并将漂移颗粒与有机化合物气体引入 碳纤维生产区。 由此生成气相生长的碳纤维。