DK0879389T3 - Recirkulering af helium til fremstilling af optiske fibre - Google Patents

Recirkulering af helium til fremstilling af optiske fibre

Info

Publication number
DK0879389T3
DK0879389T3 DK97929877T DK97929877T DK0879389T3 DK 0879389 T3 DK0879389 T3 DK 0879389T3 DK 97929877 T DK97929877 T DK 97929877T DK 97929877 T DK97929877 T DK 97929877T DK 0879389 T3 DK0879389 T3 DK 0879389T3
Authority
DK
Denmark
Prior art keywords
helium
recycling
optical fiber
fed
optical fibre
Prior art date
Application number
DK97929877T
Other languages
English (en)
Inventor
Paul A Chludzinski
Original Assignee
Corning Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Corning Inc filed Critical Corning Inc
Application granted granted Critical
Publication of DK0879389T3 publication Critical patent/DK0879389T3/da

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/029Furnaces therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B23/00Noble gases; Compounds thereof
    • C01B23/001Purification or separation processes of noble gases
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01413Reactant delivery systems
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/0144Means for after-treatment or catching of worked reactant gases
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01446Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01446Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C03B37/0146Furnaces therefor, e.g. muffle tubes, furnace linings
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/02Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02718Thermal treatment of the fibre during the drawing process, e.g. cooling
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2210/00Purification or separation of specific gases
    • C01B2210/0029Obtaining noble gases
    • C01B2210/0031Helium
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00Fibre drawing or extruding details
    • C03B2205/57Recovering, recycling or purifying the coolant, e.g. helium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • F17C2205/0326Valves electrically actuated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/011Oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/014Nitrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/016Noble gases (Ar, Kr, Xe)
    • F17C2221/017Helium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/037Containing pollutant, e.g. H2S, Cl
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/05Ultrapure fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107Single phase
    • F17C2223/0123Single phase gaseous, e.g. CNG, GNC
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01Propulsion of the fluid
    • F17C2227/0128Propulsion of the fluid with pumps or compressors
    • F17C2227/0157Compressors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04Methods for emptying or filling
    • F17C2227/044Methods for emptying or filling by purging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04Indicating or measuring of parameters as input values
    • F17C2250/0404Parameters indicated or measured
    • F17C2250/043Pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00Effects achieved by gas storage or gas handling
    • F17C2265/01Purifying the fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/05Applications for industrial use
    • F17C2270/0518Semiconductors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK97929877T 1996-06-24 1997-06-09 Recirkulering af helium til fremstilling af optiske fibre DK0879389T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2079696P 1996-06-24 1996-06-24
PCT/US1997/009968 WO1997049960A1 (en) 1996-06-24 1997-06-09 Helium recycling for optical fiber manufacturing

Publications (1)

Publication Number Publication Date
DK0879389T3 true DK0879389T3 (da) 2003-09-15

Family

ID=21800625

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97929877T DK0879389T3 (da) 1996-06-24 1997-06-09 Recirkulering af helium til fremstilling af optiske fibre

Country Status (12)

Country Link
US (3) US5890376C1 (da)
EP (1) EP0879389B1 (da)
JP (1) JPH11513011A (da)
KR (1) KR19990044095A (da)
CN (1) CN1196789A (da)
AT (1) ATE241119T1 (da)
AU (1) AU714363B2 (da)
BR (1) BR9702330A (da)
CA (1) CA2221691A1 (da)
DE (1) DE69722180D1 (da)
DK (1) DK0879389T3 (da)
WO (1) WO1997049960A1 (da)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001163632A (ja) * 1999-12-13 2001-06-19 Sumitomo Electric Ind Ltd 光ファイバ製造方法および光ファイバ製造装置
AU7185900A (en) * 2000-01-14 2001-07-19 Boc Group, Inc., The Helium recovery process
US6345451B1 (en) 2000-03-23 2002-02-12 Air Products And Chemicals, Inc. Method and apparatus for hot continuous fiber cooling with cooling gas recirculation
FR2808793B1 (fr) * 2000-05-15 2002-09-27 Air Liquide Fabrication de fibre optique refroidie a l'helium avec recyclage sans purification de l'helium
FR2815399B1 (fr) * 2000-10-18 2003-01-03 Air Liquide Procede et installation de purification et recyclage de l'helium, et leur application a la fabrication de fibres optiques
US20020129622A1 (en) * 2001-03-15 2002-09-19 American Air Liquide, Inc. Heat transfer fluids and methods of making and using same
US20020134530A1 (en) * 2001-03-20 2002-09-26 American Air Liquide, Inc. Heat transfer fluids and methods of making and using same
US6668582B2 (en) 2001-04-20 2003-12-30 American Air Liquide Apparatus and methods for low pressure cryogenic cooling
US6651358B2 (en) 2001-04-30 2003-11-25 American Air Liquide, Inc. Heat transfer fluids and methods of making and using same comprising hydrogen, helium and combinations thereof
US6574972B2 (en) 2001-04-30 2003-06-10 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Low temperature heat transfer methods
US6789400B2 (en) * 2001-11-30 2004-09-14 The Boc Group, Inc. Cap assembly and optical fiber cooling process
FR2833188B1 (fr) 2001-12-06 2004-05-21 Air Liquide Installation et procede de production de produits en utilisant un fluide
US6701728B1 (en) * 2002-08-28 2004-03-09 The Boc Group, Inc. Apparatus and method for recovery and recycle of optical fiber coolant gas
US20040139766A1 (en) * 2003-01-17 2004-07-22 Weeks Gene K. Systems and methods for recycling gas used in treating optical fiber
US20040194513A1 (en) * 2003-04-04 2004-10-07 Giacobbe Frederick W Fiber coolant system including improved gas seals
JP2004359520A (ja) * 2003-06-06 2004-12-24 Toshiba Ceramics Co Ltd 合成シリカガラスの製造方法及びその製造装置
US20050011230A1 (en) * 2003-07-17 2005-01-20 Shirley Arthur I. Method for blending and recirculating deuterium-containing gas
US7261763B2 (en) * 2003-07-17 2007-08-28 The Boc Group, Inc. Method for the recovery and recycle of helium and chlorine
US7984838B2 (en) * 2006-05-04 2011-07-26 Medtronic Ps Medical, Inc. Recycled helium gas surgical instrument
US20090324816A1 (en) * 2008-06-27 2009-12-31 Paul Andrew Chludzinski Low Permeability Gas Recycling in Consolidation
NL2002422C2 (en) * 2009-01-16 2010-07-19 Draka Comteq Bv Method and system to manufacture an optical fibre preform.
JP5323530B2 (ja) * 2009-02-23 2013-10-23 古河電気工業株式会社 光ファイバの製造方法
US8444749B2 (en) 2009-06-10 2013-05-21 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and system for membrane-based gas recovery
CN103363294B (zh) * 2013-07-08 2016-02-03 安徽万瑞冷电科技有限公司 一种用于空调行业的废氦气回收系统
US9649590B2 (en) * 2014-01-13 2017-05-16 Versum Materials Us, Llc System and method for gas recovery and reuse
US10308544B2 (en) 2015-10-13 2019-06-04 Corning Incorporated Gas reclamation system for optical fiber production
CN106744749A (zh) * 2016-11-30 2017-05-31 富通集团(嘉善)通信技术有限公司 用于光纤拉丝系统的氦气在线回收利用方法及装置
CN109912190B (zh) * 2017-02-28 2021-08-06 天津富通集团有限公司 用于光纤预制棒生产的烧结炉
US11136256B2 (en) 2017-07-25 2021-10-05 Made In Space, Inc. System and method for manufacturing optical fiber
CN108328919A (zh) * 2018-04-19 2018-07-27 合肥硕朗自动化科技有限公司 一种光纤拉丝冷却管氦气回收装置
CN109930201A (zh) * 2019-03-08 2019-06-25 银川隆基硅材料有限公司 一种气体回用控制方法及气体回用控制设备
CN110498401B (zh) * 2019-09-02 2024-05-17 北京中科富海低温科技有限公司 氦气回收净化装置
CN112225448B (zh) * 2020-10-22 2022-12-06 江苏亨通光导新材料有限公司 一种用于光纤预制棒烧结的氦氯混合气循环系统
CN112604465A (zh) * 2020-11-03 2021-04-06 国网湖北省电力有限公司检修公司 用于六氟化硫气体放电降解处理的气体循环装置及方法
EP4080146A1 (en) * 2021-04-21 2022-10-26 Linde GmbH Method of operating a fabrication plant and fabrication plant
EP4265322A1 (en) * 2022-04-22 2023-10-25 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Helium recovery process

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181307A (en) * 1960-02-16 1965-05-04 Phillips Petroleum Co Helium separation
US3194054A (en) * 1961-08-07 1965-07-13 William M Deaton Apparatus for concentrating trace impurities in high-purity helium
US3333435A (en) * 1964-08-28 1967-08-01 Phillips Petroleum Co Process and apparatus for handling off-specification helium
US3792591A (en) * 1970-03-24 1974-02-19 Cryogenic Technology Inc Helium purification method and apparatus
JPS56109831A (en) * 1980-01-30 1981-08-31 Nippon Telegr & Teleph Corp <Ntt> Manufacture of base material for optical fiber
FR2510539A1 (fr) * 1981-07-28 1983-02-04 Expertises Sa Cie Maritime Procede et installation d'epuration de l'helium contenu dans un melange de gaz
JPS60103006A (ja) * 1983-11-09 1985-06-07 Toyo Sanso Kk 可搬型ヘリウム回収精製装置
JPS60122741A (ja) * 1983-12-08 1985-07-01 Hitachi Cable Ltd 光ファイバ母材の製造法
JPS61261223A (ja) * 1985-05-13 1986-11-19 Furukawa Electric Co Ltd:The 多孔質ガラス母材用透明ガラス化炉
US4863501A (en) * 1985-09-26 1989-09-05 Polaroid Corporation, Patent Department Method of employing plasma for finishing start rods
JPS62153132A (ja) * 1985-12-26 1987-07-08 Furukawa Electric Co Ltd:The ガラス処理炉におけるガス循環装置
US4659351A (en) * 1986-01-29 1987-04-21 Air Products And Chemicals, Inc. Combined process to produce liquid helium, liquid nitrogen, and gaseous nitrogen from a crude helium feed
EP0462893B1 (en) * 1990-06-19 1995-04-12 Fujikura Ltd. Method for splicing and reinforcing carbon coated optical fibers
JPH04240129A (ja) * 1991-01-18 1992-08-27 Sumitomo Electric Ind Ltd 光ファイバの製造方法及び装置
US5377491A (en) * 1992-12-11 1995-01-03 Praxair Technology, Inc. Coolant recovery process
JPH09142892A (ja) * 1995-11-28 1997-06-03 Furukawa Electric Co Ltd:The 被覆光ファイバの製造装置及び製造方法
ID17537A (id) * 1996-07-26 1998-01-08 Praxair Technology Inc Perolehan kembali helium bagi manupaktur serat optis

Also Published As

Publication number Publication date
DE69722180D1 (de) 2003-06-26
US6092391A (en) 2000-07-25
KR19990044095A (ko) 1999-06-25
ATE241119T1 (de) 2003-06-15
CA2221691A1 (en) 1997-12-24
AU714363B2 (en) 1999-12-23
AU3383597A (en) 1998-01-14
BR9702330A (pt) 1999-07-20
JPH11513011A (ja) 1999-11-09
WO1997049960A1 (en) 1997-12-31
EP0879389B1 (en) 2003-05-21
US6253575B1 (en) 2001-07-03
EP0879389A1 (en) 1998-11-25
US5890376C1 (en) 2001-05-15
US5890376A (en) 1999-04-06
CN1196789A (zh) 1998-10-21
EP0879389A4 (da) 1998-12-02

Similar Documents

Publication Publication Date Title
US5890376C1 (en) Helium recycling for optical fiber manufacturing
FI932155A (fi) Foerfarande och anordning foer separering av pappersfiber och plaster fraon blandade avfallsmaterialer och daermed erhaollna produkter
ES2129130T3 (es) Derivados de piperidina y proceso para su produccion.
ATE336287T1 (de) Verbesserte gleichzeitige herstellung von gasen, insbesondere von wasserstoff und kohlendioxid
FI93440B (fi) Menetelmä ja laite mineraalivillan kuiduttamiseksi vapaalinkousta käyttäen
DK0658221T3 (da) Fremgangsmåde til fremstilling af cellulosefibre samt indretning til gennemførelse af fremgangsmåden
CA2211455A1 (en) Helium recovery for optical fiber manufacturing
WO2002033334A3 (fr) Procede et installation de purification et recyclage de l&#39;helium, et leur application a la fabrication de fibres optiques
DK0716067T3 (da) Fremgangsmåde til fremstilling af xylitol
ATE321739T1 (de) Verfahren zur rückgewinnung und wiederwervendung von helium und chlor
FI820259L (fi) Foerfarande och anordning foer att rena aoteranvaent glas
ES2183091T3 (es) Recuperacion de gases nobles.
DK0930277T3 (da) Fremgangsmåde til behandling af spildgasser fra en enhed til fremstilling af en optisk fiber præform til genindvinding af germanium
DK0728713T3 (da) Fremgangsmåde til udnyttelse af reststoffer ved cementfremstilling
DZ2868A1 (fr) Méthode de récupération d&#39;acétate de methyle et d&#39;acide acétique résiduel au cours de la production d&#39;acide téréphtalique pur.
DE69628433D1 (de) Verfahren zur gewinnung von pivalinsäure aus abfallreaktionsgemischen
ATE270255T1 (de) Verfahren zur gewinnung von helium
NO932651D0 (no) Fremgangsmaate for oppberedning av gammelpapir
TH28705A (th) การนำฮีเลียมกลับมาในกระบวนการผลิตออปติคไฟเบอร์
FR2795715B1 (fr) Procede pour le glacage de la surface externe d&#39;une preforme de fibre optique et installation de production de preformes mettant en oeuvre ce procede
DK0705219T3 (da) Fremgangsmåde til fraskillelse af fulleren fra fullerenholdigt carbon black.
ES2080643B1 (es) &#34;un procedimiento de recuperacion y reutilizacion del azufre en una fabrica de celulosa al sulfato&#34;
ATE241644T1 (de) Verfahren zur reinigung von tamm-horsfall- glykoprotein und uromodulin
ATE295840T1 (de) Verfahren zur herstellung von melamin
EP0844297A3 (en) Process for the gasification of glass fiber reinforced plastics, and apparatus