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Separation of CF4 and C2F6 from a perfluorocompound mixture 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-053/22
  • B01D-053/04
출원번호 US-0061977 (1998-04-17)
발명자 / 주소
  • Li Yao-En
출원인 / 주소
  • American Air Liquide Inc.
대리인 / 주소
    Burns, Doane, Swecker & Mathis, L.L.P.
인용정보 피인용 횟수 : 12  인용 특허 : 32

초록

A process for separating at least one of CF.sub.4 and C.sub.2 F.sub.6 from a gas. The process includes the steps of:

대표청구항

[ What is claimed is:] [1.] A process for separating at least one of CF.sub.4 and C.sub.2 F.sub.6 from a gas, said process comprising the steps of:(a) contacting a gas mixture comprising (i) at least one of CF.sub.4 and C.sub.2 F.sub.6, (ii) at least one of NF.sub.3, CHF.sub.3, and N.sub.2, and (iii

이 특허에 인용된 특허 (32)

  1. Robinson Joseph G. (Winchcombe GB2) Barnes David I. (Cheltenham GB2), Aromatic hydrocarbon resins.
  2. Alegranti ; Constance Wright, Asymmetric polyimide membranes.
  3. Takamizawa Minoru (Joetsu JPX) Yamamoto Akira (Joetsu JPX) Nagura Shigehiro (Joetsu JPX), Composite hollow fiber.
  4. Ohyabu Shuzo (Kurashiki JPX) Kawai Syuji (Kurashiki JPX) Okamoto Takehiko (Kurashiki JPX) Migaki Takao (Okayama JPX), Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use.
  5. Takemura Tohru (Ohtake JPX) Yoshida Haruhiko (Kugagun JPX) Hukunaga Osamu (Iwakuni JPX), Composite hollow fibers and method of making same.
  6. Bikson Benjamin (Brookline MA) Nelson Joyce K. (Lexington MA), Composite membranes and their manufacture and use.
  7. Salemme Robert M. (Schenectady NY) Browall Warella R. (Scotia NY), Continuous preparation of ultrathin polymeric membrane laminates.
  8. Chernyakov Iosif ; Hsiung Thomas Hsiao-Ling ; Schwarz Alexander ; Yang James Hsu-Kuang, Fluorochemical recovery and recycle using membranes.
  9. Matsuura Junichi (Kamakura JPX) Okada Munehisa (Machida JPX), Gas separation membrane.
  10. Rao Madhukar B. (Allentown PA) Sircar Shivaji (Wescosville PA) Abrardo Joseph M. (Schnecksville PA) Baade William F. (Breinigsville PA), Hydrocarbon fractionation by adsorbent membranes.
  11. Kimura Shiro G. (Schenectady NY) Lavigne Raymond G. (Waterford NY) Browall Warella R. (Scotia NY), Method for casting ultrathin methylpentene polymer membranes.
  12. Cabasso Israel (Syracuse NY) Lundy Kevin A. (Columbus GA), Method of making membranes for gas separation and the composite membranes.
  13. Takemura Tohru (Hiroshima JPX) Itoh Hajime (Hiroshima JPX) Kamo Jun (Hiroshima JPX) Yoshida Haruhiko (Yamaguchi JPX), Multilayer composite hollow fibers and method of making same.
  14. Ekiner Okan M. (Wilmington DE) Hayes Richard A. (Parkersburg WV) Manos Phillip (Wilmington DE), Novel multicomponent fluid separation membranes.
  15. Hayes Richard A. (Hockessin DE), Polyimide gas separation membranes.
  16. Makino Hiroshi (Ichihara JPX) Kusuki Yoshihiro (Ichihara JPX) Harada Takashi (Ichihara JPX) Shimazaki Hiroshi (Ichihara JPX) Isida Tosio (Ichihara JPX), Porous aromatic imide polymer membrane and a process for its manufacture.
  17. Li Yao-En ; Duchateau Eric L., Process and system for selective abatement of reactive gases and recovery of perfluorocompound gases.
  18. Li Yao-En ; Paganessi Joseph E. ; Vassallo David ; Fleming Gregory K., Process and system for separation and recovery of perfluorocompound gases.
  19. Puri Pushpinder S. (Macungie PA), Process for making highly permeable coated composite hollow fiber membranes.
  20. Bottenbruch ; Ludwig ; Kampf ; Gunther ; Serini ; Volker ; Vernaleken ; Hugo, Process for manufacturing thin, non-porous gas permeable polycarbonate film s.
  21. Makino, Hiroshi; Kusuki, Yoshihiro; Yoshida, Hiroshi; Nakamura, Asumaru, Process for preparing aromatic polyimide semipermeable membranes.
  22. Makino Hiroshi (Ichihara JPX) Kusuki Yoshihiro (Ichihara JPX) Harada Takashi (Ichihara JPX) Shimazaki Hiroshi (Ichihara JPX), Process for producing aromatic polyimide hollow filaments.
  23. Makino Hiroshi (Ichihara JPX) Kusuki Yoshihiro (Ichihara JPX) Harada Takashi (Ichihara JPX) Shimazaki Hiroshi (Ichihara JPX) Isida Tosio (Ichihara JPX), Process for producing porous aromatic polyimide membranes.
  24. Li Yao-En, Process for recovering CF.sub.4 and C.sub.2 F.sub.6 from a gas.
  25. Li Yao-En ; Meimari Magdy,CAX, Process for recovering SF6 from a gas.
  26. Pinnau Ingo ; Wijmans Johannes G. ; He Zhenjie ; Goakey Shannon ; Baker Richard W., Process for recovering semiconductor industry cleaning compounds.
  27. Anumakonda Amar ; Gaita Romulus ; Yates Stephen ; Zhou Jim, Process for recovering sulfur hexafluoride.
  28. Yates Stephen Frederic ; Gaita Romulus ; Ramachandra Amar ; Morrell Robert, Process for recovering sulfur hexafluoride.
  29. Choe Jung S. (Allentown PA) Auvil Steven R. (Macungie PA) Agrawal Rakesh (Allentown PA), Process for separating components of a gas stream.
  30. Makino Hiroshi (Ichihara JPX) Kusuki Yoshihiro (Ichihara JPX) Harada Takashi (Ichihara JPX) Shimazaki Hiroshi (Ichihara JPX) Isida Tosio (Ichihara JPX), Production of aromatic polyimide separating membranes.
  31. Tamhankar Satish S. (Scotch Plains NJ) Ramachandran Ramakrishnan (Allendale NJ) Blow Martin (Basking Ridge NJ) Galica Theodore R. (Glen Gardner NJ), Removal of perfluorocarbons from gas streams.
  32. Browall Warella R. (Scotia NY), Ultrathin polyetherimide membrane and gas separation process.

이 특허를 인용한 특허 (12)

  1. Nakamura, Morimitsu; Kawai, Masato, Gas purifier apparatus and method for gas purification.
  2. Abe, Tetsuya; Tanzawa, Sadamitsu; Hiroki, Seiji; Tajima, Yoshinori; Futatsuki, Takashi, Gas separation apparatus.
  3. Abe, Tetsuya; Tanzawa, Sadamitsu; Hiroki, Seiji; Tajima, Yoshinori; Futatsuki, Takashi, Gas separation apparatus.
  4. Tajima, Yoshinori; Futatsuki, Takashi, Gas separation apparatus and gas separation method.
  5. Pittroff, Michael; Schwarze, Thomas; Belt, Heinz-Joachim, Isolation of SF6 from insulating gases in gas-insulated lines.
  6. Horiba,Minako; Suzuki,Yasuhiro, Process for purifying octafluoropropane.
  7. Ralph Newton Miller ; Chien-Ping Chai Kao ; Barry Asher Mahler, Process for purifying perfluorinated products.
  8. Park, Yong Chul; Jeong, Woo Sik; Hyun, Kwang Chul; Lee, Jang Won; Kwon, Ik Hyeon, Process for refining nitrogen trifluoride gas using alkali earth metal exchanged and impregnated zeolite.
  9. Park, Yong-Chul; Jeong, Woo-Sik; Hyun, Kwang-Chul; Lee, Jang-Won; Kwon, Ik-Hyeon, Process for refining nitrogen trifluoride gas using alkali earth metal exchanged zeolite.
  10. Krouse, Steven Arnold; Chodur, John, Purification of hexafluoro-1,3-butadiene.
  11. Nel, Johannes Theodorus; Van Der Walt, Izak Jacobus; Grunenberg, Alfred Teo; Bruinsma, Odolphus Simon Leo; Le Roux, Marco; Krieg, Henning Manfred; Marx, Sanette, Recovery of a gaseous component from a mixture of gaseous compounds.
  12. Henderson, Philip Bruce; Golden, Timothy Christopher, Separation of C2F6 from CF4 by adsorption on activated carbon.
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