AR019909A1 - Carbon activado en particulas, disposicion purificadora de agua, que comprende un filtro de carbon activado, proceso para preparar un carbon activado, yelemento filtrante poroso de ceramica - Google Patents

Carbon activado en particulas, disposicion purificadora de agua, que comprende un filtro de carbon activado, proceso para preparar un carbon activado, yelemento filtrante poroso de ceramica

Info

Publication number
AR019909A1
AR019909A1 ARP990103389A ARP990103389A AR019909A1 AR 019909 A1 AR019909 A1 AR 019909A1 AR P990103389 A ARP990103389 A AR P990103389A AR P990103389 A ARP990103389 A AR P990103389A AR 019909 A1 AR019909 A1 AR 019909A1
Authority
AR
Argentina
Prior art keywords
activated carbon
filter element
water purifying
particulated
provision
Prior art date
Application number
ARP990103389A
Other languages
English (en)
Original Assignee
Clear Water Internat Holding Asa
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
Priority claimed from GBGB9814921.4A external-priority patent/GB9814921D0/en
Priority claimed from GBGB9825092.1A external-priority patent/GB9825092D0/en
Application filed by Clear Water Internat Holding Asa filed Critical Clear Water Internat Holding Asa
Publication of AR019909A1 publication Critical patent/AR019909A1/es

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/30Active carbon
    • C01B32/312Preparation
    • C01B32/336Preparation characterised by gaseous activating agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/02Loose filtering material, e.g. loose fibres
    • B01D39/06Inorganic material, e.g. asbestos fibres, glass beads or fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2055Carbonaceous material
    • B01D39/2058Carbonaceous material the material being particulate
    • B01D39/2062Bonded, e.g. activated carbon blocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068Other inorganic materials, e.g. ceramics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28011Other properties, e.g. density, crush strength
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016Particle form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28057Surface area, e.g. B.E.T specific surface area
    • B01J20/28066Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28069Pore volume, e.g. total pore volume, mesopore volume, micropore volume
    • B01J20/28073Pore volume, e.g. total pore volume, mesopore volume, micropore volume being in the range 0.5-1.0 ml/g
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/3078Thermal treatment, e.g. calcining or pyrolizing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30Processes for preparing, regenerating, or reactivating
    • B01J20/3085Chemical treatments not covered by groups B01J20/3007 - B01J20/3078
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00Carbon; Compounds thereof
    • C01B32/30Active carbon
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • C02F9/20Portable or detachable small-scale multistage treatment devices, e.g. point of use or laboratory water purification systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0407Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0442Antimicrobial, antibacterial, antifungal additives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1208Porosity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1216Pore size
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1241Particle diameter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00Aspects relating to sorbent materials
    • B01J2220/40Aspects relating to the composition of sorbent or filter aid materials
    • B01J2220/48Sorbents characterised by the starting material used for their preparation
    • B01J2220/4812Sorbents characterised by the starting material used for their preparation the starting material being of organic character
    • B01J2220/485Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/70Treatment of water, waste water, or sewage by reduction
    • C02F1/705Reduction by metals
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/72Treatment of water, waste water, or sewage by oxidation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/42Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/422Treatment of water, waste water, or sewage by ion-exchange using anionic exchangers
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • C02F2201/006Cartridges
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/008Mobile apparatus and plants, e.g. mounted on a vehicle
    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Clinical Laboratory Science (AREA)
  • Ceramic Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Water Treatment By Sorption (AREA)
  • Filtering Materials (AREA)

Abstract

Un carbon activado en partículas y un proceso para preparar dicho carbon activado que contiene partículas de ceniza insolubles en agua en una cantidad depor lo menos 1% en peso, determinado de conformidad con la norma ASTM 2866. El carbon activado esadecuado para utilizar en filtros de agua. Un elemento defiltro poroso de cerámica en el cual una proporcion de los poros está parcialmente ocluida para producir poros que tienen un tamano efectivo a través de sudimension máxima inferior a su tamanoverdadero. Una disposicion purificadora de agua con propiedades ventajosas, que contiene un filtro de carbon activado yun elemento filtrante poroso de cerámica que están conectados en serie de manera que, en la práctica, el agua pase consecutivamente a través del filtro decarbon activado y luego a través del elemento filtrante de cerámica.
ARP990103389A 1998-07-09 1999-07-12 Carbon activado en particulas, disposicion purificadora de agua, que comprende un filtro de carbon activado, proceso para preparar un carbon activado, yelemento filtrante poroso de ceramica AR019909A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9814921.4A GB9814921D0 (en) 1998-07-09 1998-07-09 Water purification
GBGB9825092.1A GB9825092D0 (en) 1998-11-12 1998-11-12 Water purification

Publications (1)

Publication Number Publication Date
AR019909A1 true AR019909A1 (es) 2002-03-20

Family

ID=26314000

Family Applications (2)

Application Number Title Priority Date Filing Date
ARP990103389A AR019909A1 (es) 1998-07-09 1999-07-12 Carbon activado en particulas, disposicion purificadora de agua, que comprende un filtro de carbon activado, proceso para preparar un carbon activado, yelemento filtrante poroso de ceramica
ARP020102554A AR034745A2 (es) 1998-07-09 2002-07-08 Elemento filtrante poroso de ceramica

Family Applications After (1)

Application Number Title Priority Date Filing Date
ARP020102554A AR034745A2 (es) 1998-07-09 2002-07-08 Elemento filtrante poroso de ceramica

Country Status (14)

Country Link
EP (1) EP1094986B1 (es)
CN (1) CN1226195C (es)
AR (2) AR019909A1 (es)
AT (1) ATE288879T1 (es)
AU (1) AU766526B2 (es)
DE (1) DE69923683T2 (es)
DK (1) DK1094986T3 (es)
ES (1) ES2237093T3 (es)
IL (1) IL140711A (es)
NO (1) NO20010060L (es)
NZ (1) NZ509183A (es)
PT (1) PT1094986E (es)
WO (1) WO2000002816A1 (es)
ZA (1) ZA200100199B (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL150535A0 (en) * 2000-01-07 2003-02-12 Clear Water 42 Holding Asa Water purification filter
DE102006062600B4 (de) 2006-12-29 2023-12-21 Endress + Hauser Flowtec Ag Verfahren zum Inbetriebnehmen und/oder Überwachen eines In-Line-Meßgeräts
DE102008039447A1 (de) * 2008-08-25 2010-03-04 Marc Flettner Verfahren und Vorrichtung zur Behandlung von Wasser
CN101947050A (zh) * 2010-08-03 2011-01-19 黄志发 一种陶瓷净水饮水器
KR101803904B1 (ko) * 2016-06-21 2018-01-10 한국과학기술연구원 마이크로시스틴 및 이취미물질 제거용 활성탄을 이용한 정수처리시스템
WO2019131305A1 (ja) * 2017-12-28 2019-07-04 株式会社クラレ 吸着フィルター
CN108562037B (zh) * 2018-04-26 2023-12-05 广东万和电气有限公司 一种阻垢电热水器
GB2579409A (en) * 2018-11-30 2020-06-24 Kl Tech Filtration Limited A water filtration device
WO2021102105A1 (en) * 2019-11-19 2021-05-27 University Of Cincinnati Devices and methods for concentration of analytes
CN111774042A (zh) * 2020-07-28 2020-10-16 昆山久硕电子有限公司 一种活性炭滤芯的制备工艺

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Publication number Priority date Publication date Assignee Title
US4063893A (en) * 1976-09-13 1977-12-20 Stoulil Arthur C Dye stabilized trisodium phosphate cleaning solution
EP0322932B1 (en) * 1987-12-23 1994-03-30 Hi-Tech Ceramics, Inc. A fiber filled reticulated ceramic, used as a lining in a furnace
US5156335A (en) * 1989-09-05 1992-10-20 Smith Michael L Filtered drinking straw
US5368754A (en) * 1990-11-01 1994-11-29 Texaco Inc. Method for stripping contaminants from wastewater
US5443735A (en) * 1991-09-12 1995-08-22 Pall Corporation Method and device for inhibiting bacterial growth on sorbent media
DE69418671T2 (de) * 1993-10-15 1999-12-16 Corning Inc., Corning Verfahren zur Herstellung von Körpern mit imprägnierten Poren
US5446378A (en) * 1993-12-15 1995-08-29 Grumman Aerospace Corporation Magneto-optic eddy current imaging apparatus and method including dithering the image relative to the sensor
DE4416576C1 (de) * 1994-05-11 1995-11-09 Braeutigam Joerg Verfahren zur Herstellung kugelförmiger Aktivkohle
EP0745416B1 (en) * 1995-06-02 2003-09-17 Corning Incorporated Device for removal of contaminants from fluid streams
JP2649024B2 (ja) * 1995-07-27 1997-09-03 太陽石油株式会社 液体炭化水素中の水銀除去方法
US5726118A (en) * 1995-08-08 1998-03-10 Norit Americas, Inc. Activated carbon for separation of fluids by adsorption and method for its preparation
WO1997006879A1 (de) * 1995-08-11 1997-02-27 Katadyn Produkte Ag Portable filtervorrichtung zur wasseraufbereitung mit mehreren filterstufen

Also Published As

Publication number Publication date
EP1094986A1 (en) 2001-05-02
AU3044599A (en) 2000-02-01
PT1094986E (pt) 2005-05-31
DE69923683T2 (de) 2006-01-12
AU766526B2 (en) 2003-10-16
DE69923683D1 (de) 2005-03-17
ZA200100199B (en) 2002-06-26
ATE288879T1 (de) 2005-02-15
DK1094986T3 (da) 2005-06-06
EP1094986B1 (en) 2005-02-09
NZ509183A (en) 2003-05-30
AR034745A2 (es) 2004-03-17
NO20010060D0 (no) 2001-01-05
NO20010060L (no) 2001-03-05
ES2237093T3 (es) 2005-07-16
CN1226195C (zh) 2005-11-09
IL140711A (en) 2004-07-25
IL140711A0 (en) 2002-02-10
CN1312775A (zh) 2001-09-12
WO2000002816A1 (en) 2000-01-20

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