ID18367A - Proses pemurnian argon - Google Patents
Proses pemurnian argonInfo
- Publication number
- ID18367A ID18367A IDP973038A ID973038A ID18367A ID 18367 A ID18367 A ID 18367A ID P973038 A IDP973038 A ID P973038A ID 973038 A ID973038 A ID 973038A ID 18367 A ID18367 A ID 18367A
- Authority
- ID
- Indonesia
- Prior art keywords
- purification process
- argon purification
- argon
- purification
- Prior art date
Links
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title 2
- 229910052786 argon Inorganic materials 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B23/00—Noble gases; Compounds thereof
- C01B23/001—Purification or separation processes of noble gases
- C01B23/0094—Combined chemical and physical processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/02—Separation 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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/04—Purification or separation of nitrogen
- C01B21/0405—Purification or separation processes
- C01B21/0494—Combined chemical and physical processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/108—Hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0216—Other waste gases from CVD treatment or semi-conductor manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/402—Further details for adsorption processes and devices using two beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/404—Further details for adsorption processes and devices using four beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/414—Further details for adsorption processes and devices using different types of adsorbents
- B01D2259/4141—Further details for adsorption processes and devices using different types of adsorbents within a single bed
- B01D2259/4145—Further details for adsorption processes and devices using different types of adsorbents within a single bed arranged in series
- B01D2259/4146—Contiguous multilayered adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/416—Further details for adsorption processes and devices involving cryogenic temperature treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0003—Chemical processing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0003—Chemical processing
- C01B2210/0004—Chemical processing by oxidation
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0001—Separation or purification processing
- C01B2210/0009—Physical processing
- C01B2210/0014—Physical processing by adsorption in solids
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0029—Obtaining noble gases
- C01B2210/0034—Argon
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/005—Carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0053—Hydrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0062—Water
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0068—Organic compounds
- C01B2210/007—Hydrocarbons
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Of Gases By Adsorption (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
- Drying Of Gases (AREA)
- Catalysts (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/719,832 US6113869A (en) | 1996-09-30 | 1996-09-30 | Process for argon purification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ID18367A true ID18367A (id) | 1998-04-02 |
Family
ID=24891526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IDP973038A ID18367A (id) | 1996-09-30 | 1997-08-29 | Proses pemurnian argon |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6113869A (id) |
| EP (1) | EP0832678A3 (id) |
| JP (1) | JPH10114508A (id) |
| CA (1) | CA2214557C (id) |
| ID (1) | ID18367A (id) |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1085588A (ja) * | 1996-09-18 | 1998-04-07 | Nippon Sanso Kk | ガス精製用処理剤及びガス精製装置 |
| US5983667A (en) * | 1997-10-31 | 1999-11-16 | Praxair Technology, Inc. | Cryogenic system for producing ultra-high purity nitrogen |
| EP1060774A1 (en) * | 1999-06-14 | 2000-12-20 | Air Products And Chemicals, Inc. | Purification of gases |
| US6340382B1 (en) | 1999-08-13 | 2002-01-22 | Mohamed Safdar Allie Baksh | Pressure swing adsorption process for the production of hydrogen |
| SG100744A1 (en) * | 2000-06-29 | 2003-12-26 | Boc Group Inc | Purification of gases |
| US6511640B1 (en) * | 2000-06-29 | 2003-01-28 | The Boc Group, Inc. | Purification of gases |
| JP4662613B2 (ja) * | 2000-09-06 | 2011-03-30 | 住友大阪セメント株式会社 | 多孔質粉体、その製造方法及びその用途 |
| US20030064014A1 (en) * | 2001-08-03 | 2003-04-03 | Ravi Kumar | Purification of gases by pressure swing adsorption |
| EP1450931A4 (en) * | 2001-10-31 | 2005-01-05 | Saes Pure Gas Inc | AIR CLEANING SYSTEM AND METHOD FOR MAINTAINING NITROGEN AND OXYGEN CONDITIONS WITH REGENERATIVE CLEANING UNITS |
| US6736879B2 (en) | 2002-05-01 | 2004-05-18 | Chevron Phillips Chemical Company Lp | Process to prepare low carbon disulfide containing dimethyl sulfide |
| JP3572548B2 (ja) * | 2002-05-24 | 2004-10-06 | 日本酸素株式会社 | ガス精製方法及び装置 |
| GB0217143D0 (en) * | 2002-07-24 | 2002-09-04 | Ici Plc | Getter |
| US6838066B2 (en) * | 2002-09-13 | 2005-01-04 | Air Products And Chemicals, Inc. | Process for recovery, purification, and recycle of argon |
| JP2004230267A (ja) * | 2003-01-29 | 2004-08-19 | Tokyo Electric Power Co Inc:The | 吸着剤及びそれを用いた炭素同位体の分離方法 |
| WO2005035100A1 (en) * | 2003-09-24 | 2005-04-21 | Donaldson Company, Inc. | High purity air and gas fractionation system |
| US7267811B2 (en) | 2003-11-26 | 2007-09-11 | Cabot Corporation | Fuel reformer catalyst and absorbent materials |
| US7732372B2 (en) * | 2003-11-26 | 2010-06-08 | Cabot Corporation | Particulate absorbent materials |
| US7264788B2 (en) * | 2003-11-26 | 2007-09-04 | Cabot Corporation | Fuel reformer catalyst and absorbent materials |
| US7160360B2 (en) * | 2003-12-08 | 2007-01-09 | Air Products And Chemicals, Inc. | Purification of hydride gases |
| US20080184882A1 (en) * | 2004-09-24 | 2008-08-07 | White Donald H | High purity air and gas fractionation system |
| JP4733960B2 (ja) * | 2004-10-18 | 2011-07-27 | 大陽日酸株式会社 | 熱スイング吸着方式による不純物含有アルゴンガスの精製方法および精製装置 |
| FR2879474B1 (fr) | 2004-12-16 | 2008-06-13 | Air Liquide | Procede d'epuration d'un melange entrant comportant du dioxyde de carbone (co2) et du monoxyde de carbone (co) en vue de l'elimination du monoxyde de carbone (co) contenu dans ce melange |
| JP4520372B2 (ja) * | 2005-06-21 | 2010-08-04 | シーケーディ株式会社 | 精製筒及び空気又は不活性ガスの循環精製装置 |
| US7611671B2 (en) | 2005-10-14 | 2009-11-03 | Aperon Biosystems Corp. | Reduction of carbon monoxide interference in gaseous analyte detectors |
| JP2007246414A (ja) * | 2006-03-14 | 2007-09-27 | National Institute Of Advanced Industrial & Technology | メタン濃縮装置及びメタン濃縮方法 |
| US7717985B2 (en) * | 2006-07-26 | 2010-05-18 | Donaldson Company | Sorption systems with naturally occurring zeolite, and methods |
| DE102007010875A1 (de) * | 2007-03-06 | 2008-09-11 | Linde Ag | Verfahren und Vorrichtung zur Wasserstoffabtrennung aus Gasströmen mit Sauerstoffanteil |
| US7645431B2 (en) * | 2007-10-23 | 2010-01-12 | Air Products And Chemicals, Inc. | Purification of noble gases using online regeneration of getter beds |
| US7862645B2 (en) | 2008-02-01 | 2011-01-04 | Air Products And Chemicals, Inc. | Removal of gaseous contaminants from argon |
| US20100131434A1 (en) * | 2008-11-24 | 2010-05-27 | Air Products And Chemicals, Inc. | Automated patient-management system for presenting patient-health data to clinicians, and methods of operation thereor |
| JP5101540B2 (ja) * | 2009-02-03 | 2012-12-19 | 住友精化株式会社 | アルゴン精製方法およびアルゴン精製装置 |
| US7883682B2 (en) | 2009-02-20 | 2011-02-08 | Conocophillips Company | Carbon dioxide rich off-gas from a two stage gasification process |
| JP5232686B2 (ja) * | 2009-02-24 | 2013-07-10 | 大陽日酸株式会社 | ガスの精製方法および精製装置 |
| US20110126709A1 (en) * | 2009-12-02 | 2011-06-02 | Uop Llc | Use of calcium exchanged x-type zeolite for improvement of refinery off-gas pressure swing adsorption |
| CN102091502A (zh) * | 2009-12-10 | 2011-06-15 | 琳德股份公司 | 气体预纯化方法 |
| GB2477322B (en) * | 2010-02-01 | 2015-10-21 | Gas Recovery & Recycle Ltd | Inert gas recovery system |
| JP5566815B2 (ja) * | 2010-08-31 | 2014-08-06 | 大陽日酸株式会社 | ガスの精製方法およびガス精製装置 |
| JP2012140254A (ja) * | 2010-12-28 | 2012-07-26 | Covalent Materials Corp | 不活性ガス回収装置 |
| JP5791113B2 (ja) * | 2011-04-12 | 2015-10-07 | 住友精化株式会社 | アルゴンガスの精製方法および精製装置 |
| JP2013049605A (ja) * | 2011-08-31 | 2013-03-14 | Taiyo Nippon Sanso Corp | 不活性ガス精製方法 |
| KR101329082B1 (ko) * | 2011-11-25 | 2013-11-14 | 한국원자력연구원 | 광섬유 레이저를 이용한 탄소 및 산소 동위원소 분리 방법 및 장치 |
| CN104080957B (zh) | 2011-12-07 | 2017-05-17 | 普莱克斯技术有限公司 | 用于硅晶体生长拉制方法的惰性气体回收和再循环 |
| US8940263B2 (en) | 2013-04-10 | 2015-01-27 | Air Products And Chemicals, Inc. | Removal of hydrogen and carbon monoxide impurities from gas streams |
| US9375679B2 (en) | 2013-08-30 | 2016-06-28 | Haldex Brake Products Corporation | Air dryer assembly with manifold system |
| CN104528665A (zh) * | 2014-12-22 | 2015-04-22 | 本钢板材股份有限公司 | 净化氮气的方法 |
| WO2019133613A2 (en) * | 2017-12-27 | 2019-07-04 | Perkinelmer Health Sciences, Inc. | Thermal desorption systems with drying devices and methods of using them |
| US11318237B2 (en) | 2019-02-06 | 2022-05-03 | Separation Design Group Llc | Integrated extracorporeal oxygenation and CO2 removal with ventilation system |
| US11420869B2 (en) * | 2019-02-22 | 2022-08-23 | Uop Llc | Process for removing oxygen from a hydrogen stream |
| CN113697785A (zh) * | 2020-05-22 | 2021-11-26 | 中国石油化工股份有限公司 | 氧化法结合膜分离制备氦气的方法 |
| TWI809444B (zh) * | 2020-08-19 | 2023-07-21 | 美商普雷瑟科技股份有限公司 | 用於預純化進料氣流之方法 |
| CN114645316B (zh) * | 2020-12-18 | 2024-04-19 | 中国科学院大连化学物理研究所 | 一种单晶炉氩气尾气处理装置及其处理方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1572968A (en) * | 1978-05-31 | 1980-08-06 | Air Prod & Chem | Method of purifying crude argon |
| JPS6140807A (ja) * | 1984-08-03 | 1986-02-27 | Hitachi Ltd | アルゴンガスの精製方法および装置 |
| US4579723A (en) * | 1985-03-28 | 1986-04-01 | The Boc Group, Inc. | Methods for purifying inert gas streams |
| US4713224A (en) * | 1986-03-31 | 1987-12-15 | The Boc Group, Inc. | One-step process for purifying an inert gas |
| US5202096A (en) * | 1990-01-19 | 1993-04-13 | The Boc Group, Inc. | Apparatus for low temperature purification of gases |
| US4983194A (en) * | 1990-02-02 | 1991-01-08 | Air Products And Chemicals, Inc. | Production of high purity argon |
| US5100446A (en) * | 1991-01-07 | 1992-03-31 | Union Carbide Industrial Gases Technology Corporation | Crude neon production system |
| US5106399A (en) * | 1991-02-25 | 1992-04-21 | Union Carbide Industrial Gases Technology Corporation | Argon purification system |
| US5204075A (en) * | 1991-05-30 | 1993-04-20 | The Boc Group, Inc. | Process for the purification of the inert gases |
| CA2132384A1 (en) * | 1993-09-30 | 1995-03-31 | Ravi Jain | Purification of fluids by adsorption |
-
1996
- 1996-09-30 US US08/719,832 patent/US6113869A/en not_active Expired - Fee Related
-
1997
- 1997-08-14 EP EP97306191A patent/EP0832678A3/en not_active Ceased
- 1997-08-29 ID IDP973038A patent/ID18367A/id unknown
- 1997-09-02 CA CA002214557A patent/CA2214557C/en not_active Expired - Fee Related
- 1997-09-29 JP JP9263815A patent/JPH10114508A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP0832678A3 (en) | 1998-07-01 |
| CA2214557C (en) | 2002-01-01 |
| US6113869A (en) | 2000-09-05 |
| CA2214557A1 (en) | 1998-03-30 |
| EP0832678A2 (en) | 1998-04-01 |
| JPH10114508A (ja) | 1998-05-06 |
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