公开(公告)号：US06841087B2

公开(公告)日：2005-01-11

申请号：US10127217

申请日：2002-04-19

Applicant: Byung-Gwon Lee ,  Jong-Sung Lim ,  Byoung Sung Ahn ,  Kun You Park ,  Chang-Nyeon Kim

Inventor： Byung-Gwon Lee ,  Jong-Sung Lim ,  Byoung Sung Ahn ,  Kun You Park ,  Chang-Nyeon Kim

IPC: C09K5/04

CPC classification number: C09K5/045 ,  C09K2205/12 ,  C09K2205/22

Abstract: A refrigerant composition that can be a substitute for chlorodifluoromethane (HCFC-22) comprises: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1-trifluoroethane, (c) a third constituent of 1,1,1,2-tetrafluoroethane, and (d) a fourth constituent selected from the group consisting of 1,1-difluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,2,3,3-hexafluropropane and butane.

Abstract translation: 可以代替氯二氟甲烷（HCFC-22）的制冷剂组合物包括：（a）二氟甲烷的第一组分，（b）1,1,1-三氟乙烷的第二组分，（c）1的第三组分， 1,1,2-四氟乙烷，和（d）选自1,1-二氟乙烷，1,1,1,2,3,3,3-七氟丙烷，1,1,1,2 ，3,3-己基丙烷和丁烷。

公开(公告)号：US06706771B2

公开(公告)日：2004-03-16

申请号：US10194303

申请日：2002-07-15

Applicant: Hoon Sik Kim ,  Yong Soo Kang ,  Byung Gwon Lee ,  Hyun Joo Lee ,  Jae Hee Ryu

Inventor： Hoon Sik Kim ,  Yong Soo Kang ,  Byung Gwon Lee ,  Hyun Joo Lee ,  Jae Hee Ryu

IPC: C08J520

CPC classification number: C10G31/11 ,  B01D53/228 ,  B01D69/142 ,  C07C7/144 ,  C07C11/02

Abstract: The present invention relates to polymer membranes for separating olefins from paraffins which have the similar molecular size and close boiling point. More particularly, it relates to a silver salt-containing facilitated transport membrane for olefin separation, and also a method for producing the same. An object of the present invention is to provide a silver salt-containing facilitated transport membrane for olefin separation having improved stability, and also a method for preparing the same, which exhibits no deterioration in membrane performance even when operated for an extended period of time. The facilitated transport membrane for olefin/paraffin separation of the present invention comprises a polymer, a silver salt, and a phthalate compound represented by the following formula (1) wherein R denotes an alkyl group of 2 to 8 carbon atoms or a phenyl group.

Abstract translation: 本发明涉及用于从具有相似分子大小和接近沸点的石蜡中分离烯烃的聚合物膜。 更具体地说，本发明涉及一种用于烯烃分离的含银盐的促进输送膜，以及它们的制造方法。 本发明的目的是提供一种具有改进的稳定性的含银盐的促进烯烃分离的输送膜以及其制备方法，即使长时间操作也不会降低膜性能。 本发明的促进烯烃/石蜡分离的输送膜包括由下式（1）表示的聚合物，银盐和邻苯二甲酸酯化合物，其中R表示2至8个碳原子的烷基或苯基。

公开(公告)号：US06407264B2

公开(公告)日：2002-06-18

申请号：US09780235

申请日：2001-02-09

Applicant: Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

Inventor： Hoon Sik Kim ,  Jai Jun Kim ,  Byung Gwon Lee ,  Hong Gon Kim

IPC: C07D31710

CPC classification number: C07D317/36 ,  C07D317/38

Abstract: The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.

Abstract translation: 本发明涉及一种制备式（1）的碳酸亚烷基酯的方法，其中R 1和R 2各自独立地为H; C1-C4烷基或苯基;所述方法的特征在于在催化剂体系存在下使环氧烷与二氧化碳反应，所述催化剂体系包含a）金属卤化物[MXm]和b）吡啶或吡啶衍生物[Py]，其中Py选自 一组吡啶; M是选自Zn，Fe，Mn，Pb和In的金属原子; X是选自Cl，Br和I的卤素; m为2或3。

公开(公告)号：US5500400A

公开(公告)日：1996-03-19

申请号：US302636

申请日：1994-09-08

Applicant: Hoon Sik Kim ,  Byung Gwon Lee ,  Honggon Kim ,  Kun You Park

Inventor： Hoon Sik Kim ,  Byung Gwon Lee ,  Honggon Kim ,  Kun You Park

IPC: B01J27/12 ,  B01J27/132 ,  B01J27/138 ,  B01J37/26 ,  C07C17/20 ,  B01J23/26

CPC classification number: B01J37/26 ,  B01J27/12 ,  B01J27/132 ,  B01J27/138 ,  C07C17/206

Abstract: There are a catalyst for producing 1,1,1,2-tetrafluoroethane represented as Cr.sub.a L.sub.b M.sub.c O.sub.x F.sub.y wherein L is Mg or Ca; M is one element selected from a group consisting of Ce, Ni, Zn, and Al; and each value of a, b, c, x and y are all between 0 and 2, and a method for preparing the same comprising the steps of: producing an admixture of a composition comprising chromium hydroxide hydrate and magnesium chloride or calcium chloride in a weight ratio of Cr to Mg or Ca ranging from 1:0.3 to 1:10 with an aqueous metal salt solution; reacting the admixture with an aqueous HF solution to give a paste; and sintering the paste.

Abstract translation: 作为CraLbMcOxFy制备1,1,1,2-四氟乙烷的催化剂，其中L为Mg或Ca; M是选自Ce，Ni，Zn和Al中的一种元素; a，b，c，x和y的每个值都在0和2之间，并且其制备方法包括以下步骤：在含有氢氧化铬水合物和氯化镁或氯化钙的组合物的混合物中 用金属盐水溶液将Cr与Mg或Ca的重量比范围为1:0.3至1:10; 使混合物与HF水溶液反应，得到糊状物; 并烧结糊状物。