BG60266B2 - Метод за химическо стабилизиране на съдържащи тежки метали прахове и утайки,по-специално прах от електродъгови пещи - Google Patents
Метод за химическо стабилизиране на съдържащи тежки метали прахове и утайки,по-специално прах от електродъгови пещиInfo
- Publication number
- BG60266B2 BG60266B2 BG9066089A BG9066089A BG60266B2 BG 60266 B2 BG60266 B2 BG 60266B2 BG 9066089 A BG9066089 A BG 9066089A BG 9066089 A BG9066089 A BG 9066089A BG 60266 B2 BG60266 B2 BG 60266B2
- Authority
- BG
- Bulgaria
- Prior art keywords
- electric arc
- dust
- sludges
- heavy metal
- arc furnace
- Prior art date
Links
- 239000000428 dust Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 238000010891 electric arc Methods 0.000 title abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 title abstract 2
- 239000000126 substance Substances 0.000 title abstract 2
- 230000006641 stabilisation Effects 0.000 title 1
- 238000011105 stabilization Methods 0.000 title 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 229910052793 cadmium Inorganic materials 0.000 abstract 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract 1
- 235000012215 calcium aluminium silicate Nutrition 0.000 abstract 1
- 239000000404 calcium aluminium silicate Substances 0.000 abstract 1
- WNCYAPRTYDMSFP-UHFFFAOYSA-N calcium aluminosilicate Chemical compound [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O WNCYAPRTYDMSFP-UHFFFAOYSA-N 0.000 abstract 1
- 229940078583 calcium aluminosilicate Drugs 0.000 abstract 1
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 239000002920 hazardous waste Substances 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/0427—Dry materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/18—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00767—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes
- C04B2111/00784—Uses not provided for elsewhere in C04B2111/00 for waste stabilisation purposes for disposal only
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
-
- 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
- Y10S106/00—Compositions: coating or plastic
- Y10S106/01—Fly ash
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Gasification And Melting Of Waste (AREA)
- Catching Or Destruction (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Detergent Compositions (AREA)
- Fire-Extinguishing Compositions (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Prostheses (AREA)
- Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
Abstract
Методът намира приложение предимно при производството на стомана в електродъгови пещи, където един от отделящите се вторични продукти е прах, съдържащ такива елементи като кадмий, шествалентен хлор иолово, поради което е класифициран като вреден отпадък от бюрото за опазване на околната среда на сащ. Чрез него прахът се стабилизира, като вредните компоненти на отпадъците се правят неотделими. Пометода материали, съдържащи безводни алумосиликати,в присъствието на вар, вода и химикали абсорбиратили физически присъединяват тежките метали от праха в калциево-алумосиликатна маса. 17 претенции, 1 фигура
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US6360587A | 1987-06-18 | 1987-06-18 | |
PCT/US1988/001879 WO1988010243A1 (en) | 1987-06-18 | 1988-06-09 | Process for chemical stabilization of heavy metal bearing dusts and sludges, such as eaf dust |
Publications (2)
Publication Number | Publication Date |
---|---|
BG60266B2 true BG60266B2 (bg) | 1994-03-31 |
BG60266B1 BG60266B1 (bg) | 1994-03-31 |
Family
ID=22050312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG090660A BG60266B1 (bg) | 1987-06-18 | 1989-12-15 | Метод за химическо стабилизиране на съдържащи тежки метали прахове и утайки,по-специално прах от електродъгови пещи |
Country Status (20)
Country | Link |
---|---|
US (1) | US4911757A (bg) |
EP (1) | EP0363429B1 (bg) |
JP (1) | JPH03500502A (bg) |
AT (1) | ATE85907T1 (bg) |
AU (1) | AU615458B2 (bg) |
BG (1) | BG60266B1 (bg) |
CA (1) | CA1297502C (bg) |
DE (1) | DE3878691T2 (bg) |
DK (1) | DK172051B1 (bg) |
ES (1) | ES2006985A6 (bg) |
FI (1) | FI100093B (bg) |
GR (1) | GR1001977B (bg) |
HU (1) | HU206300B (bg) |
IN (1) | IN169600B (bg) |
MX (1) | MX168796B (bg) |
NO (1) | NO300095B1 (bg) |
RO (1) | RO105948B1 (bg) |
RU (1) | RU2046112C1 (bg) |
WO (1) | WO1988010243A1 (bg) |
ZA (1) | ZA883753B (bg) |
Families Citing this family (43)
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---|---|---|---|---|
US5259697A (en) * | 1987-06-18 | 1993-11-09 | Bethlehem Steel Corporation | Composition and process for forming low permeability barriers for waste disposal sites |
HU207191B (en) * | 1988-04-20 | 1993-03-01 | Energiagazdalkodasi Intezet | Process for embedding dangerous wastes of high heavy metal content and comprising high mobility, water-soluble alkali ions as accompanying substance |
CH681810A5 (bg) * | 1990-10-22 | 1993-05-28 | Von Roll Ag | |
JP3038679B2 (ja) * | 1990-09-12 | 2000-05-08 | 横浜市 | 陶磁器質タイル |
US5211750A (en) * | 1991-06-19 | 1993-05-18 | Conversion Systems, Inc. | Synthetic aggregate and landfill method |
US5186742A (en) * | 1991-11-27 | 1993-02-16 | Chemical Lime Company | Method and composition for use in recycling metal containing furnace dust |
US5278111A (en) * | 1992-04-10 | 1994-01-11 | Frame Scott W | Electric arc furnace dust as raw material for brick |
CH686671A5 (de) * | 1992-06-05 | 1996-05-31 | Von Roll Umwelttechnik Ag | Verfahren zum Entsorgen von Rauchgasrueckstaenden. |
US5304703A (en) * | 1992-07-27 | 1994-04-19 | Cal-Sine Environmental, Inc. | Process for disposal of volatile hazardous wastes |
US5245122A (en) * | 1992-08-26 | 1993-09-14 | Conversion Systems, Inc. | Method and mixture for treating electric arc furnace dust |
US5350549A (en) * | 1993-04-15 | 1994-09-27 | Valley Forge Laboratories, Inc. | Synthetic aggregate compositions derived from spent bed materials from fluidized bed combustion and fly ash |
US5435835A (en) * | 1994-01-06 | 1995-07-25 | Bethlehem Steel Corporation | Method and system for removing and/or causing recycling of materials |
US5658097A (en) * | 1995-12-14 | 1997-08-19 | Fe Lime Industry Corporation | Soil or ground quality stabilizer and treatment method |
US5557031A (en) * | 1994-10-06 | 1996-09-17 | Al-Sugair; Faisal H. | Use of electric arc furnace by-products in concrete |
US5690448A (en) * | 1994-10-21 | 1997-11-25 | E. I. Du Pont De Nemours And Company | Landfill closure system |
CA2137090A1 (en) * | 1994-12-01 | 1996-06-02 | Jay Aota | Eaf dust treatment |
WO1996022950A1 (de) | 1995-01-24 | 1996-08-01 | Voest-Alpine Industrieanlagenbau Gmbh | Verfahren zum verwerten von beim reduzieren von eisenerz anfallenden stäuben |
AT403481B (de) * | 1995-01-24 | 1998-02-25 | Voest Alpine Ind Anlagen | Verfahren zum verwerten von beim reduzieren von eisenerz anfallenden stäuben |
DE69516701T2 (de) * | 1995-12-19 | 2000-11-23 | Saudi Basic Industries Corp. (Sabic), Riyadh | Verwendung von Lichtbogenofenabgasen in Zement |
TW393448B (en) * | 1996-02-28 | 2000-06-11 | Solvay | Process for rendering ash inert |
KR970026982A (ko) * | 1996-07-26 | 1997-06-24 | 김회수 | 적벽돌 및 그 제조방법 |
US5853474A (en) * | 1997-06-02 | 1998-12-29 | Conversion Systems, Inc. | Use of stabilized EAFD as a raw material in the production of a portland cement clinker |
US6053857A (en) * | 1998-05-15 | 2000-04-25 | Conversion Systems, Inc. | Immobilization of thallium during electric arc furnace dust treatment |
US6409819B1 (en) * | 1998-06-30 | 2002-06-25 | International Mineral Technology Ag | Alkali activated supersulphated binder |
US6451083B1 (en) | 2000-06-09 | 2002-09-17 | Robert Kevin Twilley | Hardened particle comprising a reaction product of metal baghouse dust |
US20050268656A1 (en) * | 2001-01-08 | 2005-12-08 | Alexander Raichel | Poly-crystalline compositions |
US6679823B2 (en) | 2001-05-04 | 2004-01-20 | Envirosafe Services Of Ohio, Inc. | Treatment of electric arc furnace dust to resist acid and alkaline leaching of heavy metals |
US6682586B2 (en) | 2001-10-09 | 2004-01-27 | Heritage Environmental Services, Llc. | Assemblies and methods for processing zinc-bearing materials |
US20060070406A1 (en) * | 2004-09-28 | 2006-04-06 | Orgyr Technologies Ltd. | Use of coal ash for the safe disposal of mineral waste |
CA2654845A1 (en) * | 2006-06-13 | 2007-12-21 | D&D Salomon Investment Ltd. | Glass-ceramic materials having a predominant spinel-group crystal phase |
EP2052091A2 (de) * | 2006-08-10 | 2009-04-29 | Sachtleben Chemie GmbH | Aus schlacken gewonnener zuschlag- und füllstoff |
WO2008137647A1 (en) * | 2007-05-03 | 2008-11-13 | Cbl Industrial Services, Inc. | Process for treating particulate material containing heavy metal and an additive for use in such process |
US8075666B2 (en) | 2007-05-03 | 2011-12-13 | Cbl Industrial Services, Inc. | Process for treating particulate material containing heavy metal and an additive for use in such process |
CA2767740A1 (en) * | 2009-06-11 | 2010-12-16 | Sweetwater Environmental Solutions, Llc | Process for enhanced remediation of contaminated wastewaters, soils and wasteforms |
ES2356976B1 (es) * | 2009-10-01 | 2012-02-27 | Calcinor, S.A. | Procedimiento para utilización de escorias negras producidas en horno de arco eléctrico, producto obtenido y uso de dicho producto. |
RS56180B1 (sr) * | 2009-12-22 | 2017-11-30 | Newsouth Innovations Pty Ltd | Obrada letećeg pepela i proizvodnja predmeta koji sadrže kompozicije letećeg pepela |
CN102358704B (zh) * | 2011-07-21 | 2013-06-12 | 沈阳航空航天大学 | 一种利用高铬污染土壤烧结制取陶粒的方法 |
WO2013176907A1 (en) * | 2012-05-22 | 2013-11-28 | Fmc Wyoming Corporation | Fly ash and fly ash leachate treatment |
EP2900620A2 (en) * | 2012-11-01 | 2015-08-05 | Saudi Basic Industries Corporation | Use of a cement accelerator and electric arc furnace dust in cement |
CA2959976A1 (en) | 2016-03-08 | 2017-09-08 | Ron Froh | Waste disposal closure system |
CN106904654B (zh) * | 2017-03-07 | 2019-04-02 | 张家港江苏科技大学产业技术研究院 | 电弧炉粉尘联产铬盐及电极材料的方法 |
RU2699196C1 (ru) * | 2018-11-28 | 2019-09-03 | Федеральное государственное бюджетное научное учреждение "Всероссийский научно-исследовательский институт гидротехники и мелиорации имени А.Н. Костякова" (ФГБНУ "ВНИИГиМ им. А.Н. Костякова") | Способ переработки твёрдых коммунальных отходов |
CN109851299A (zh) * | 2019-03-18 | 2019-06-07 | 北京国旺混凝土有限公司 | 一种抗渗高强的混凝土及其制备方法 |
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US29783A (en) * | 1860-08-28 | Improvement in presses | ||
FR1046030A (fr) * | 1951-11-30 | 1953-12-02 | Forges & Acieries Dilling Sa | Agglomérés à base de laitier de hauts-fourneaux |
US3341341A (en) * | 1965-03-04 | 1967-09-12 | Corson G & W H | Lightweight aggregate |
US3634115A (en) * | 1968-12-03 | 1972-01-11 | Corson G & W H | Sulfopozzolanically active fly ash and composition |
GB1303430A (bg) * | 1969-06-12 | 1973-01-17 | ||
US3579443A (en) * | 1969-07-31 | 1971-05-18 | Russell J Horst | Formation of dense precipitates |
US3852084A (en) * | 1970-03-30 | 1974-12-03 | C Smith | Cementitious composition containing activated lime-fly ash mixture |
USRE29783E (en) * | 1970-04-17 | 1978-09-26 | Iu Technology Corporation | Process for treating aqueous chemical waste sludges and compositions produced thereby |
US3720609A (en) * | 1970-04-17 | 1973-03-13 | G & W Corson Inc | Process for treating aqueous chemical waste sludges and composition produced thereby |
US3960723A (en) * | 1972-12-26 | 1976-06-01 | Ford Motor Company | Magnetization of iron chromium system |
US4116705A (en) * | 1973-06-01 | 1978-09-26 | Stablex Ag | Detoxification |
AU475033B2 (en) * | 1973-11-16 | 1975-05-22 | I U Conversion Systems, Inc | Structural materials and methods of making structural materials based on lime-fly ash-sulfite compositions |
US4226630A (en) * | 1979-04-03 | 1980-10-07 | Amax Resource Recovery Systems, Inc. | Leach-resistant solid bodies from fly ash and heavy metal sludge |
GB2096127B (en) * | 1980-09-19 | 1984-05-31 | Blue Circle Ind Ltd | Method of processing waste materials |
US4434060A (en) * | 1980-11-25 | 1984-02-28 | General Electric Company | Removal of heavy metals content |
IT1181805B (it) * | 1983-05-13 | 1987-09-30 | Seitz Enzinger Noll Masch | Procedimento per la rigenerazione di liscivie contenenti soda caustica e potassa caustica,inpiegate per il lavaggio di contenitori,in particolare bottiglie |
US4518508A (en) * | 1983-06-30 | 1985-05-21 | Solidtek Systems, Inc. | Method for treating wastes by solidification |
SE452307B (sv) * | 1983-09-12 | 1987-11-23 | Boliden Ab | Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor |
US4668124A (en) * | 1985-04-22 | 1987-05-26 | Engelhard Corporation | Disposal of material containing vanadium as landfill |
-
1988
- 1988-05-26 ZA ZA883753A patent/ZA883753B/xx unknown
- 1988-06-03 IN IN459/CAL/88A patent/IN169600B/en unknown
- 1988-06-09 AU AU19929/88A patent/AU615458B2/en not_active Ceased
- 1988-06-09 EP EP19880906314 patent/EP0363429B1/en not_active Expired - Lifetime
- 1988-06-09 RU SU884742838A patent/RU2046112C1/ru not_active IP Right Cessation
- 1988-06-09 WO PCT/US1988/001879 patent/WO1988010243A1/en active IP Right Grant
- 1988-06-09 AT AT88906314T patent/ATE85907T1/de not_active IP Right Cessation
- 1988-06-09 RO RO143356A patent/RO105948B1/ro unknown
- 1988-06-09 DE DE8888906314T patent/DE3878691T2/de not_active Expired - Fee Related
- 1988-06-09 HU HU884174A patent/HU206300B/hu not_active IP Right Cessation
- 1988-06-09 JP JP63505771A patent/JPH03500502A/ja active Pending
- 1988-06-15 MX MX1190488A patent/MX168796B/es unknown
- 1988-06-17 ES ES8801902A patent/ES2006985A6/es not_active Expired
- 1988-06-17 GR GR880100386A patent/GR1001977B/el unknown
- 1988-06-17 CA CA 569828 patent/CA1297502C/en not_active Expired - Lifetime
-
1989
- 1989-05-09 US US07/349,006 patent/US4911757A/en not_active Expired - Lifetime
- 1989-12-14 NO NO895024A patent/NO300095B1/no not_active IP Right Cessation
- 1989-12-15 FI FI896036A patent/FI100093B/fi not_active IP Right Cessation
- 1989-12-15 BG BG090660A patent/BG60266B1/bg unknown
- 1989-12-15 DK DK637989A patent/DK172051B1/da not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NO895024D0 (no) | 1989-12-14 |
HUT52743A (en) | 1990-08-28 |
HU206300B (en) | 1992-10-28 |
EP0363429A1 (en) | 1990-04-18 |
DE3878691D1 (de) | 1993-04-01 |
US4911757A (en) | 1990-03-27 |
GR1001977B (en) | 1995-10-09 |
DK172051B1 (da) | 1997-09-29 |
EP0363429B1 (en) | 1993-02-24 |
IN169600B (bg) | 1991-11-16 |
FI100093B (fi) | 1997-09-30 |
AU615458B2 (en) | 1991-10-03 |
WO1988010243A1 (en) | 1988-12-29 |
GR880100386A (el) | 1989-03-08 |
DE3878691T2 (de) | 1993-06-09 |
NO300095B1 (no) | 1997-04-07 |
JPH03500502A (ja) | 1991-02-07 |
BG60266B1 (bg) | 1994-03-31 |
ATE85907T1 (de) | 1993-03-15 |
FI896036A0 (fi) | 1989-12-15 |
ES2006985A6 (es) | 1989-05-16 |
CA1297502C (en) | 1992-03-17 |
NO895024L (no) | 1989-12-14 |
DK637989D0 (da) | 1989-12-15 |
EP0363429A4 (en) | 1990-11-29 |
RO105948B1 (ro) | 1993-01-30 |
DK637989A (da) | 1989-12-15 |
ZA883753B (en) | 1989-03-29 |
RU2046112C1 (ru) | 1995-10-20 |
MX168796B (es) | 1993-06-08 |
AU1992988A (en) | 1989-01-19 |
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