公开(公告)号：US5841007A

公开(公告)日：1998-11-24

申请号：US630678

申请日：1996-04-12

申请人： Byoung Sung Ahn ,  Young Soo Kwon ,  Kun You Park ,  Moon Jo Chung

发明人： Byoung Sung Ahn ,  Young Soo Kwon ,  Kun You Park ,  Moon Jo Chung

IPC分类号： C07C17/20 ,  C07C17/21 ,  C07C19/08 ,  C07C17/00

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

摘要： The present invention relates to a process for manufacturing 1,1,1,2-tetrafluoroethane (HFC-134a) from trichloroethylene (TCE) and hydrogen fluoride (HF) by reacting the HCFC-133a with the HF to produce the HFC-134a and reacting the TCE with the HF to produce 1-choro-2,2,2-trifluoroethane (HCFC-133a), characterized by that a part of said HF is mixed with the mixture containing the HFC-134a and the remaining portion of said HF is fed with said TCE in portions to at least two sections of a reactor for producing said HCFC-133a. According the present process, the temperature change in the reactor for producing HCFC-133a is maintained within a narrow range over the whole reaction procedures, and the catalytic activity is well maintained. Further, the formation of by-products is considerably prevented and thus the productivity is remarkably enhanced.

摘要翻译： 本发明涉及通过使HCFC-133a与HF反应生成HFC-134a，从三氯乙烯（TCE）和氟化氢（HF）制备1,1,1,2-四氟乙烷（HFC-134a） 使TCE与HF反应以产生1-氯-2,2,2-三氟乙烷（HCFC-133a），其特征在于，将所述HF的一部分与含有HFC-134a和所述HF的剩余部分的混合物混合 与所述TCE一起供给至用于生产所述HCFC-133a的反应器的至少两个部分。 根据本方法，生产HCFC-133a的反应器中的温度变化在整个反应过程中保持在窄范围内，并且催化活性得到很好的维持。 此外，可以显着地防止副产物的形成，从而显着提高生产率。

公开(公告)号：US5716592A

公开(公告)日：1998-02-10

申请号：US711226

申请日：1996-09-09

申请人： Byoung Sung Ahn ,  Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung

发明人： Byoung Sung Ahn ,  Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung

IPC分类号： B01J23/26 ,  B01J27/132 ,  B01J27/138 ,  C01B7/04

CPC分类号： B01J27/132 ,  B01J23/26 ,  B01J27/138 ,  Y10S423/12

摘要： A process for producing chlorine by reaction of gaseous hydrogen chloride with oxygen in the presence of a catalyst prepared by reaction of chromium trioxide and cerous chloride with ethanol and calcination of the resulting reaction product, or, alternatively, prepared by reaction of chromium trioxide with ethanol, and calcination and impregnation of the resulting chromic oxide with aqueous solution of cerous chloride.

摘要翻译： 在三氧化二砷和氯化铈与乙醇反应制备的催化剂存在下，通过气态氯化氢与氧反应生成氯的方法，煅烧所得反应产物，或者通过三氧化铬与乙醇的反应制备氯的方法 ，并用氯化铈水溶液煅烧和浸渍所得到的氧化铬。

公开(公告)号：US06476088B1

公开(公告)日：2002-11-05

申请号：US09761568

申请日：2001-01-16

申请人： Moon Jo Chung ,  Nak Joong Kim

发明人： Moon Jo Chung ,  Nak Joong Kim

IPC分类号： C08J922

CPC分类号： C08J9/18 ,  B29C44/3461 ,  C08J2323/02

摘要： Polyolefin foam bead having a high-density crust and a method for manufacturing the same are disclosed. The novel polyolefin foam bead having an surface layer (crust) which is higher in density than its inner structure can be manufactured by the method comprised of impregnating a polyolefin resin with a forming agent by stirring the mixture of the polyolefin resin particles, water and the foaming agent in a pressure vessel under heat, followed by diffusing out the foaming agent from the surface layer of the resin particle to decrease the concentration of the foaming agent in the surface layer. Thereafter, the polyolefin resin is foamed by discharging the resin particles to low pressure environment.

摘要翻译： 公开了具有高密度地壳的聚烯烃泡沫珠及其制造方法。 具有密度高于其内部结构的表面层（外壳）的新型聚烯烃泡沫珠粒可以通过以下方法制造：将聚烯烃树脂浸渍在成形剂中，通过搅拌聚烯烃树脂颗粒，水和 发泡剂在加热的压力容器中，然后从树脂颗粒的表面层扩散出发泡剂，以降低发泡剂在表面层中的浓度。 此后，聚烯烃树脂通过将树脂颗粒排放到低压环境而发泡。

公开(公告)号：US06403662B2

公开(公告)日：2002-06-11

申请号：US09761565

申请日：2001-01-16

申请人： Moon Jo Chung ,  Nak Joong Kim

发明人： Moon Jo Chung ,  Nak Joong Kim

IPC分类号： C08J916

CPC分类号： B29C44/3453 ,  B29C44/206 ,  B29C44/3461 ,  C08J9/18 ,  C08J2323/02 ,  Y10S521/917

摘要： A method for manufacturing polyolefin foam beads by a continuous process is disclosed by which the polyolefin foam beads can be produced with increased efficiency and productivity. The method comprises a step of impregnating foaming agent into polyolefin resin by mixing polyolefin resin particles, water and the foaming agent in a impregnation chamber under heat and pressure, followed by a step of storing the polyolefin resin containing the foaming agent in a storing chamber under heat and pressure. Thereafter, the resin particles are subjected to a foaming step by continuously or intermittently discharging the resin particles from the storing chamber to a low pressure expansion chamber by utilizing a discharging device, in the same time period when a next batch of polyolefin resin is added and mixed in the impregnation chamber after being supplied with the resin particles from a resin supply chamber.

摘要翻译： 公开了一种通过连续方法制造聚烯烃泡沫珠的方法，通过该方法可以以更高的效率和生产率生产聚烯烃泡沫珠。 该方法包括通过在聚烯烃树脂中将聚烯烃树脂颗粒，水和发泡剂在加热和压力下在浸渍室中混合，然后将含有发泡剂的聚烯烃树脂储存在储存室中的步骤，将发泡剂浸渍到聚烯烃树脂中 热和压力。 此后，在添加下一批聚烯烃树脂的同一时间段内，通过利用排出装置将树脂颗粒从储存室连续地或间歇地排出到低压膨胀室，从而对树脂颗粒进行发泡步骤， 在从树脂供给室供给树脂粒子之后，在浸渍室中混合。

公开(公告)号：US06306349B1

公开(公告)日：2001-10-23

申请号：US09449467

申请日：1999-11-29

申请人： Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung ,  Byoung Sung Ahn

发明人： Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung ,  Byoung Sung Ahn

IPC分类号： G01N3110

CPC分类号： G01N15/0893 ,  G01N31/10 ,  G01N2015/0833

摘要： The present invention relates to a catalyst characterization apparatus, and in particular to an improved catalyst characterization apparatus which is capable of characterizing the surface of a catalyst more accurately by a volumetric method without requiring a pre-treatment step which may vary the characteristics of the catalyst as well as without exposing the catalyst in air, by combining a dynamic flow type reactor with a volumetric type adsorption apparatus, whereby it is possible to accurately characterize the catalyst during an actual reaction. It is possible to accurately characterize the various catalysts and to characterize the catalyst during the reaction, alternately and/or continuously, by combining a dynamic flow type reactor with a volumetric type characterization apparatus as well as a dynamic flow type characterization apparatus.

摘要翻译： 本发明涉及一种催化剂表征装置，特别涉及一种改进的催化剂表征装置，其能够通过体积法更准确地表征催化剂的表面，而不需要可改变催化剂特性的预处理步骤 以及通过将动态流动型反应器与体积型吸附装置组合而不使空气中的催化剂暴露，由此可以在实际反应期间精确地表征催化剂。 可以通过组合动态流动型反应器与体积型表征装置以及动态流动型表征装置来交替地和/或连续地精确地表征各种催化剂并且在反应期间表征催化剂。

公开(公告)号：US5663112A

公开(公告)日：1997-09-02

申请号：US346519

申请日：1994-11-29

申请人： Byoung Sung Ahn ,  Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung

发明人： Byoung Sung Ahn ,  Dong Ju Moon ,  Kun You Park ,  Moon Jo Chung

IPC分类号： B01J23/26 ,  B01J27/132 ,  B01J27/138 ,  B01J23/00

CPC分类号： B01J27/132 ,  B01J23/26 ,  B01J27/138 ,  Y10S423/12

摘要： A novel cerous chloride-chromium oxide catalyst useful for oxidizing hydrogen chloride to chlorine. The catalyst is prepared by the reaction of chromium trioxide and cerous chloride with ethanol and calcining the reaction product. The catalyst is also prepared by the reaction of chromium trioxide with ethanol, then calcination and impregnation of the resultant chromic oxide with aqueous solution of cerous chloride. The obtained catalyst exhibits high activity at low reaction temperature.

摘要翻译： 一种用于将氯化氢氧化成氯的新型氯化铈 - 氧化铬催化剂。 催化剂通过三氧化铬和氯化铈与乙醇的反应制备，并煅烧反应产物。 催化剂也可以通过三氧化铬与乙醇的反应制备，然后用氯化铈水溶液煅烧和浸渍所得到的氧化铬。 所得催化剂在低反应温度下表现出高活性。