公开(公告)号：US20040154980A1

公开(公告)日：2004-08-12

申请号：US10773257

申请日：2004-02-09

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

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

IPC: B01D039/14

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) 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：US20030111635A1

公开(公告)日：2003-06-19

申请号：US10338139

申请日：2003-01-08

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Byung Gwon Lee ,  Jong Sung Lim ,  Kun You Park ,  Moon Jo Chung ,  Seong Joon Cho

IPC: F25D001/00 ,  C09K005/00

CPC classification number: C09K5/045 ,  C09K2205/112 ,  C09K2205/12 ,  C09K2205/22 ,  C09K2205/43

Abstract: A novel refrigerant composition useful as a substitute for HCFC-22, comprising a first constituent of difluoromethane (CH2F2, HFC-32); a second constituent of pentafluoroethane (CHF2CF3, HFC-125); a third constituent of 1,1,1-trifluoroethane (CH3CF3, HFC-143a); a fourth constituent selected from the group consisting of cyclopropane (C3H6, RC-270), 1,1,1,2,3,3,3-heptafluoropropane (CF3CHFCF3, HFC-227ea), 1,1,1,2,2-pentafluoropropane (CH3CF2CF3, HFC-245cb), isobutane (CH(CH3)2CH3, R-600a), octafluorocyclobutane (C4F8, RC-318), 1,1,1,2,3,3-hexafluoropropane (CHF2CHFCF3, HFC-236ea), butane (C4H10, R-600), bis(difluoromethyl)ether (CHF2OCHF2, HFE-134) and pentafluoroethylmethylether (CF3CF2OCH3, HFE-245).

Abstract translation: 一种可用作HCFC-22替代物的新型制冷剂组合物，其包含二氟甲烷（CH 2 F 2，HFC-32）的第一组分; 五氟乙烷（CHF 2 CF 3，HFC-125）的第二组分; 1,1,1-三氟乙烷（CH 3 CF 3，HFC-143a）的第三组分; 选自环丙烷（C 3 H 6，RC-270），1,1,1,2,3,3,3-七氟丙烷（CF 3 CHFCF 3，HFC-227ea），1,1,1,2,2 （CH 3 CF 2 CF 3，HFC-245cb），异丁烷（CH（CH 3）2 CH 3，R-600a），八氟环丁烷（C 4 F 8，RC-318），1,1,1,2,3,3-六氟丙烷（CHF 2 CHFCF 3， 236EA），丁烷（C4H10，R-600），双（二氟甲基）醚（CHF2OCHF2，HFE-134）和五氟乙基甲基醚（CF3CF2OCH3，HFE-245）。