JPS644435A - Process for extracting and purifying gallium bayer liquor - Google Patents

Process for extracting and purifying gallium bayer liquor

Info

Publication number
JPS644435A
JPS644435A JP63135385A JP13538588A JPS644435A JP S644435 A JPS644435 A JP S644435A JP 63135385 A JP63135385 A JP 63135385A JP 13538588 A JP13538588 A JP 13538588A JP S644435 A JPS644435 A JP S644435A
Authority
JP
Japan
Prior art keywords
gallium
extracting
bayer liquor
purifying gallium
purifying
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP63135385A
Other languages
English (en)
Japanese (ja)
Inventor
Ramuran Jiyannmishieru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rio Tinto France SAS
Original Assignee
Aluminium Pechiney SA
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 Aluminium Pechiney SA filed Critical Aluminium Pechiney SA
Publication of JPS644435A publication Critical patent/JPS644435A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid 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
    • B01J20/28095—Shape or type of pores, voids, channels, ducts
    • B01J20/28097—Shape or type of pores, voids, channels, ducts being coated, filled or plugged with specific compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
    • B01J20/26—Synthetic macromolecular compounds
    • B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid 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
    • B01J20/28078—Pore diameter
    • B01J20/2808—Pore diameter being less than 2 nm, i.e. micropores or nanopores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3206—Organic carriers, supports or substrates
    • B01J20/3208—Polymeric carriers, supports or substrates
    • B01J20/321—Polymeric carriers, supports or substrates consisting of a polymer obtained by reactions involving only carbon to carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3253—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising a cyclic structure not containing any of the heteroatoms nitrogen, oxygen or sulfur, e.g. aromatic structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3246—Non-macromolecular compounds having a well defined chemical structure
    • B01J20/3248—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such
    • B01J20/3255—Non-macromolecular compounds having a well defined chemical structure the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such comprising a cyclic structure containing at least one of the heteroatoms nitrogen, oxygen or sulfur, e.g. heterocyclic or heteroaromatic structures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3425—Regenerating or reactivating of sorbents or filter aids comprising organic materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
    • B01J20/3475—Regenerating or reactivating using a particular desorbing compound or mixture in the liquid phase
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G15/00—Compounds of gallium, indium or thallium
    • C01G15/003—Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2220/00—Aspects relating to sorbent materials
    • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
    • B01J2220/58—Use in a single column
    • 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
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/04—Manganese marine modules

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Nanotechnology (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)
  • Electrolytic Production Of Metals (AREA)
  • Physical Water Treatments (AREA)
  • Soy Sauces And Products Related Thereto (AREA)
  • Catalysts (AREA)
JP63135385A 1987-06-02 1988-06-01 Process for extracting and purifying gallium bayer liquor Pending JPS644435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8708013A FR2616157A1 (fr) 1987-06-02 1987-06-02 Procede d'extraction et de purification du gallium des liqueurs bayer

Publications (1)

Publication Number Publication Date
JPS644435A true JPS644435A (en) 1989-01-09

Family

ID=9351848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63135385A Pending JPS644435A (en) 1987-06-02 1988-06-01 Process for extracting and purifying gallium bayer liquor

Country Status (17)

Country Link
US (1) US5102512A (en, 2012)
EP (1) EP0297998B1 (en, 2012)
JP (1) JPS644435A (en, 2012)
CN (1) CN1015437B (en, 2012)
AT (1) ATE62466T1 (en, 2012)
AU (1) AU604325B2 (en, 2012)
BR (1) BR8802654A (en, 2012)
CA (1) CA1337021C (en, 2012)
DE (1) DE3862346D1 (en, 2012)
ES (1) ES2021870B3 (en, 2012)
FR (1) FR2616157A1 (en, 2012)
GR (1) GR3001757T3 (en, 2012)
HU (1) HU209448B (en, 2012)
IE (1) IE61367B1 (en, 2012)
IN (1) IN169596B (en, 2012)
RU (1) RU1813111C (en, 2012)
YU (1) YU46913B (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02310326A (ja) * 1989-05-23 1990-12-26 Tanaka Kikinzoku Kogyo Kk 貴金属液中からの金の分離回収法
US5187967A (en) * 1991-09-16 1993-02-23 General Electric Company Laser trimming of forgings
JP2014084495A (ja) * 2012-10-23 2014-05-12 Tanaka Kikinzoku Kogyo Kk 貴金属の分離回収方法
JP2020098818A (ja) * 2018-12-17 2020-06-25 トヨタ自動車株式会社 酸化ガリウム膜の成膜方法

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CN1012812B (zh) * 1986-01-31 1991-06-12 三菱化成株式会社 镓的回收方法
FR2605646B1 (fr) * 1986-10-24 1989-04-21 Pechiney Aluminium Extraction du gallium des liqueurs bayer a l'aide d'une resine adsorbante impregnee
DE3814916A1 (de) * 1988-05-03 1989-11-16 Int Gallium Gmbh Verfahren zur gewinnung von gallium
BE1004149A3 (nl) * 1990-04-27 1992-09-29 Acec Union Miniere Extractie van metalen door ionenuitwisseling.
NL1015961C2 (nl) * 2000-08-18 2002-02-19 Akzo Nobel Nv Toepassing van een adsorbens voor de verwijdering van vloeibare, gasvormige en/of opgeloste bestanddelen uit een processtroom.
FR2813615A1 (fr) * 2000-09-07 2002-03-08 Metaleurop Sa Procede d'extraction du gallium
RU2237740C1 (ru) * 2003-02-07 2004-10-10 Открытое акционерное общество "Всероссийский алюминиево-магниевый институт" Способ извлечения галлия из твердых галлийсодержащих материалов
RU2302995C1 (ru) * 2005-11-07 2007-07-20 Государственное образовательное учреждение высшего профессионального образования "Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (технический университет)" Способ очистки алюминатных растворов от примесей
CN100396804C (zh) * 2005-12-09 2008-06-25 韶关市华韦实业有限公司 用萃取-电解法从冶炼铅锌矿尾渣中提取金属镓的方法
CN102071328A (zh) * 2010-12-09 2011-05-25 中国铝业股份有限公司 一种树脂吸附法生产的次品镓的提纯方法
CN102021334A (zh) * 2010-12-15 2011-04-20 中国铝业股份有限公司 拜耳法种分母液中提取镓和钒的方法
CN103388159B (zh) * 2012-05-11 2016-08-03 格林美股份有限公司 一种从含氮化镓废弃物中回收镓的方法
CN103833057A (zh) * 2014-03-24 2014-06-04 连云港乐园新材料科技有限公司 一种高纯氧化铝的生产方法
CN109439899B (zh) * 2018-12-25 2020-06-02 广东省稀有金属研究所 一种从锌置换渣硫酸浸出液中吸附分离镓的方法
RU2712162C1 (ru) * 2019-07-12 2020-01-24 Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" Способ получения галлатного раствора
CN111778413B (zh) * 2020-07-03 2022-05-20 神华准能资源综合开发有限公司 一种基于树脂法从粉煤灰中提取镓的方法
EP4202077A4 (en) * 2020-08-20 2024-08-21 Shin-Etsu Chemical Co., Ltd. FILM FORMING PROCESS AND RAW MATERIAL SOLUTION
CN113003792A (zh) * 2021-04-17 2021-06-22 江苏国创新材料研究中心有限公司 一种含喹啉酸类高盐有机废水的处理方法
CN114604882A (zh) * 2022-04-19 2022-06-10 四川顺应动力电池材料有限公司 一种粉煤灰生产氧化铝且辅料循环利用的方法
CN115418478B (zh) * 2022-09-05 2023-08-01 山西大学 一种从高铝固废酸性体系中协同提取铝铁锂镓的方法
CN116272877B (zh) * 2022-09-08 2024-08-20 中国科学院城市环境研究所 一种碳吸附材料及其制备方法和用途
CN116889865A (zh) * 2023-08-02 2023-10-17 广西师范大学 一种萃取剂-树脂复合物及其制备方法和应用
CN117051267B (zh) * 2023-10-11 2023-12-29 矿冶科技集团有限公司 一种乳状液膜萃取分离镓的方法

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JPS6114129A (ja) * 1984-06-29 1986-01-22 Mitsui Alum Kogyo Kk アルミニウム電解発生ダストからガリウムを回収する方法
JPS6114127A (ja) * 1984-06-29 1986-01-22 Mitsui Alum Kogyo Kk アルミニウム電解発生ダストからガリウムを回収する方法

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JPS59213622A (ja) * 1983-05-19 1984-12-03 Showa Alum Ind Kk ガリウムの回収法
CH655710A5 (de) * 1983-11-17 1986-05-15 Sulzer Ag Verfahren zur fluessig-fluessig-extraktion von gallium aus natriumaluminatloesung mit hilfe eines organischen extraktionsmittels.
JPS60166224A (ja) * 1984-02-03 1985-08-29 Mitsui Alum Kogyo Kk アルミニウム製錬ダストからのガリウムの回収方法
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JPS6114129A (ja) * 1984-06-29 1986-01-22 Mitsui Alum Kogyo Kk アルミニウム電解発生ダストからガリウムを回収する方法
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02310326A (ja) * 1989-05-23 1990-12-26 Tanaka Kikinzoku Kogyo Kk 貴金属液中からの金の分離回収法
US5187967A (en) * 1991-09-16 1993-02-23 General Electric Company Laser trimming of forgings
JP2014084495A (ja) * 2012-10-23 2014-05-12 Tanaka Kikinzoku Kogyo Kk 貴金属の分離回収方法
JP2020098818A (ja) * 2018-12-17 2020-06-25 トヨタ自動車株式会社 酸化ガリウム膜の成膜方法
US11515146B2 (en) 2018-12-17 2022-11-29 Denso Corporation Method of forming gallium oxide film

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BR8802654A (pt) 1988-12-27
AU604325B2 (en) 1990-12-13
ES2021870B3 (es) 1991-11-16
IN169596B (en, 2012) 1991-11-16
FR2616157A1 (fr) 1988-12-09
ATE62466T1 (de) 1991-04-15
AU1696788A (en) 1988-12-08
DE3862346D1 (de) 1991-05-16
CA1337021C (fr) 1995-09-19
IE881647L (en) 1988-12-02
GR3001757T3 (en) 1992-11-23
IE61367B1 (en) 1994-11-02
YU106588A (en) 1990-04-30
EP0297998A1 (fr) 1989-01-04
US5102512A (en) 1992-04-07
CN88103282A (zh) 1988-12-21
HUT48691A (en) 1989-06-28
CN1015437B (zh) 1992-02-12
RU1813111C (ru) 1993-04-30
YU46913B (sh) 1994-06-24
HU209448B (en) 1994-06-28
EP0297998B1 (fr) 1991-04-10

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