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Process for recovering SF6 from a gas 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-053/22
  • B01D-053/68
출원번호 US-0856756 (1997-05-15)
발명자 / 주소
  • Li Yao-En
  • Meimari Magdy,CAX
출원인 / 주소
  • American Air Liquide, Inc.
대리인 / 주소
    Burns, Doane, Swecker & Mathis, L.L.P.
인용정보 피인용 횟수 : 27  인용 특허 : 29

초록 ▼

A process for recovering SF.sub.6 from a gas is provided. The process includes the step of contacting a gas stream comprising SF.sub.6 and at least one of N.sub.2, O.sub.2, CO.sub.2, and H.sub.2 O with a membrane in at least one membrane separation unit at conditions effective to obtain a retentate

대표청구항 ▼

[ What is claimed is:] [1.] A process for forming solidified Mg metal, said process comprising the steps of:(a) casting molten Mg metal in a gaseous atmosphere comprising SF.sub.6 ;(b) cooling said molten Mg metal to form a solidified Mg metal;(c) obtaining a vent gas comprising SF.sub.6 and at leas

이 특허에 인용된 특허 (29)

  1. Robinson Joseph G. (Winchcombe GB2) Barnes David I. (Cheltenham GB2), Aromatic hydrocarbon resins.
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  2. Alegranti ; Constance Wright, Asymmetric polyimide membranes.
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  3. Takamizawa Minoru (Joetsu JPX) Yamamoto Akira (Joetsu JPX) Nagura Shigehiro (Joetsu JPX), Composite hollow fiber.
    상세보기
  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.
    상세보기
  5. Takemura Tohru (Ohtake JPX) Yoshida Haruhiko (Kugagun JPX) Hukunaga Osamu (Iwakuni JPX), Composite hollow fibers and method of making same.
    상세보기
  6. Bikson Benjamin (Brookline MA) Nelson Joyce K. (Lexington MA), Composite membranes and their manufacture and use.
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  7. Salemme Robert M. (Schenectady NY) Browall Warella R. (Scotia NY), Continuous preparation of ultrathin polymeric membrane laminates.
    상세보기
  8. Matsuura Junichi (Kamakura JPX) Okada Munehisa (Machida JPX), Gas separation membrane.
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  9. Ekiner Okan M. (Wilmington DE) Simmons John W. (Wilmington DE), Gas separation membranes made from blends of aromatic polyamide, polymide or polyamide-imide polymers.
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  10. Chiao Cherry C. (Danville CA), Gas separations using membranes comprising sulphonated polyether sulphone.
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  11. Xu Jianguo (Fogelsville PA), High pressure feed membrane separation process.
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  12. Prasad Ravi (East Amherst NY), High purity membrane nitrogen.
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  13. Kimura Shiro G. (Schenectady NY) Lavigne Raymond G. (Waterford NY) Browall Warella R. (Scotia NY), Method for casting ultrathin methylpentene polymer membranes.
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  14. Cabasso Israel (Syracuse NY) Lundy Kevin A. (Columbus GA), Method of making membranes for gas separation and the composite membranes.
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  15. Weinberg Norman L. (Amherst NY) Genders John D. (Lancaster NY) Minklei Alfred O. (Grand Island NY), Methods for purification of air.
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  16. 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.
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  17. Callahan Richard A. (Burlington VT), Multiple stage semi-permeable membrane process and apparatus for gas separation.
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  18. Ekiner Okan M. (Wilmington DE) Hayes Richard A. (Parkersburg WV) Manos Phillip (Wilmington DE), Novel multicomponent fluid separation membranes.
    상세보기
  19. Hayes Richard A. (Hockessin DE), Polyimide gas separation membranes.
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  20. Weinberg Mark G. (Wilmington DE), Polyimide gas separation membranes for carbon dioxide enrichment.
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  21. 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.
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  22. Puri Pushpinder S. (Macungie PA), Process for making highly permeable coated composite hollow fiber membranes.
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  23. Bottenbruch ; Ludwig ; Kampf ; Gunther ; Serini ; Volker ; Vernaleken ; Hugo, Process for manufacturing thin, non-porous gas permeable polycarbonate film s.
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  24. Makino, Hiroshi; Kusuki, Yoshihiro; Yoshida, Hiroshi; Nakamura, Asumaru, Process for preparing aromatic polyimide semipermeable membranes.
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  25. Makino Hiroshi (Ichihara JPX) Kusuki Yoshihiro (Ichihara JPX) Harada Takashi (Ichihara JPX) Shimazaki Hiroshi (Ichihara JPX), Process for producing aromatic polyimide hollow filaments.
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  26. 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.
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  27. Bouard Pascal (Draveil FRX) Labrune Philippe (Saint Maur FRX) Villermet Alain (Viroflay FRX) Gastiger Michel (Orsay FRX), Process for the separation of a gaseous hydride or a mixture of gaseous hydrides with the aid of a membrane.
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  28. 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.
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  29. Browall Warella R. (Scotia NY), Ultrathin polyetherimide membrane and gas separation process.
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  1. Lee, Sang Hyup; Lee, Hyun Jung; Lee, Joong Kee; Woo, Joo Man; Lee, Min Woo; Kim, Han Byul, Apparatus and method for recovery of sulfur hexafluoride.
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  2. Hobbs, John Peter; Heffron, James Francis; Woytek, Andrew Joseph; Zurecki, Zbigniew, Blanketing metals and alloys at elevated temperatures with gases having reduced global warming potential.
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  3. John Peter Hobbs ; James Francis Heffron ; Andrew Joseph Woytek, Blanketing molten nonferrous metals and alloys with gases having reduced global warming potential.
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  4. O'Brien William G. ; Noelke Charles J. ; Harker Raymond C. ; Van Bramer David John, CO.sub.2 removable from fluorocarbons by semipermeable membrane.
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  5. Sabottke, Craig Y.; Kaul, Bal K.; Peiffer, Dennis G., Chromatographic membrane separation.
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  6. Yamamoto, Osamu; Kinouchi, Masayuki; Takada, Naoki; Kase, Yoji; Kikuchi, Masao, Device and method for separating and collecting halide gas.
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  7. Abe, Tetsuya; Tanzawa, Sadamitsu; Hiroki, Seiji; Tajima, Yoshinori; Futatsuki, Takashi, Gas separation apparatus.
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  8. Sabottke, Craig Y.; Kaul, Bal K.; Peiffer, Dennis G., Integrally-layered polymeric membranes and method of use.
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  9. Pittroff, Michael; Schwarze, Thomas; Belt, Heinz-Joachim, Isolation of SF6 from insulating gases in gas-insulated lines.
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  10. Peiffer, Dennis G.; Partridge, Randall D.; Weissman, Walter; Dalrymple, David C.; Sabottke, Craig Y., Membrane for separating aromatic and aliphatic compounds.
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  11. Yamashita Naohiko,JPX ; Yamamoto Takao,JPX, Method and apparatus for recovering a gas from a gas mixture.
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  12. Milbrath, Dean S.; Owens, John G., Method for generating pollution credits while processing reactive metals.
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  13. Milbrath, Dean S.; Owens, John G., Molten magnesium cover gas using fluorocarbons.
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  14. Li Yao-En ; Paganessi Jospeh E. ; Vassallo David ; Fleming Gregory K., Process and system for separation and recovery of perfluorocompound gases.
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  15. Li Yao-En ; Paganessi Jospeh E. ; Vassallo David ; Fleming Gregory K., Process and system for separation and recovery of perfluorocompound gases.
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  16. Li Yao-En ; Paganessi Jospeh E. ; Vassallo David ; Fleming Gregory K., Process and system for separation and recovery of perfluorocompound gases.
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  17. Li, Yao-En; Paganessi, Joseph E.; Vassallo, David; Fleming, Gregory K., Process and system for separation and recovery of perfluorocompound gases.
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  18. Yao-En Li ; Jospeh E. Paganessi ; David Vassallo ; Gregory K. Fleming, Process and system for separation and recovery of perfluorocompound gases.
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  19. Li Yao-En ; Meimari Magdy,CAX, Process for recovering SF.sub.6 from a gas.
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  20. Milbrath, Dean S.; Owens, John G., Processing molten reactive metals and alloys using fluorocarbons as cover gas.
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  21. Brazier, Arnaud, Production method using permeation of at least two gaseous fluxes from a gaseous mixture, and a production installation for implementing this method.
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  22. Yang James Hsu-Kuang ; Chernyakov Iosif ; Hsiung Thomas Hsiao-Ling ; Schwarz Alexander, Recovery of perfluorinated compounds from the exhaust of semiconductor fabs using membrane and adsorption in series.
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  23. Hobbs, John Peter; Heffron, James Francis; Zurecki, Zbigniew, Refining nonferrous metals and alloys with gases having reduced global warming potential.
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  24. Roh, Young-Seok, Separation and recycling system of perfluorinated compounds.
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  25. Li Yao-En, Separation of CF4 and C2F6 from a perfluorocompound mixture.
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  26. O'Brien William G. ; Noelke Charles J. ; Harker Raymond C. ; Van Bramer David John, Separation of CO.sub.2 from unsaturated fluorinated compounds by semipermeable membrane.
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  27. Michael Pittroff DE; Thomas Schwarze DE; Heinz-Joachim Belt DE; Pierre Barthelemy BE, Separation of gases containing SF6.
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