SE452307B - Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor - Google Patents
Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosforInfo
- Publication number
- SE452307B SE452307B SE8304858A SE8304858A SE452307B SE 452307 B SE452307 B SE 452307B SE 8304858 A SE8304858 A SE 8304858A SE 8304858 A SE8304858 A SE 8304858A SE 452307 B SE452307 B SE 452307B
- Authority
- SE
- Sweden
- Prior art keywords
- precipitation
- precipitating
- aqueous solution
- solution
- precipitate
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/103—Arsenic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- 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
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/906—Phosphorus containing
-
- 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
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
-
- 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
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
- Y10S210/912—Heavy metal
-
- 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
- Y10S210/00—Liquid purification or separation
- Y10S210/902—Materials removed
- Y10S210/911—Cumulative poison
- Y10S210/912—Heavy metal
- Y10S210/914—Mercury
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
- Treatment Of Sludge (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (15)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8304858A SE452307B (sv) | 1983-09-12 | 1983-09-12 | Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor |
MX8411273U MX7707E (es) | 1983-09-12 | 1984-08-28 | Procedimiento mejorado para purificar soluciones acuosas que contienen arsenico y/o fosforo |
CA000462010A CA1253981A (en) | 1983-09-12 | 1984-08-29 | Method for purifying aqueous solutions |
ES535544A ES8603355A1 (es) | 1983-09-12 | 1984-08-30 | Un metodo para purificar soluciones acuosas |
ZA846790A ZA846790B (en) | 1983-09-12 | 1984-08-30 | A method for purifying aqueous solutions |
GR80306A GR80306B (en) | 1983-09-12 | 1984-09-06 | Method for purifying aqueous solutions |
AT84850259T ATE31289T1 (de) | 1983-09-12 | 1984-09-07 | Verfahren zur reinigung von waesserigen loesungen. |
EP84850259A EP0139622B1 (en) | 1983-09-12 | 1984-09-07 | A method for purifying aqueous solutions |
DE8484850259T DE3468010D1 (en) | 1983-09-12 | 1984-09-07 | A method for purifying aqueous solutions |
BR8404502A BR8404502A (pt) | 1983-09-12 | 1984-09-10 | Metodo para purificar solucoes aquosas |
YU1569/84A YU43855B (en) | 1983-09-12 | 1984-09-11 | Process for cleaning water solutions |
JP59190444A JPS60143893A (ja) | 1983-09-12 | 1984-09-11 | 水溶液の精製方法 |
PT79186A PT79186B (en) | 1983-09-12 | 1984-09-11 | Process for purifying aqueous solutions |
MA20448A MA20224A1 (fr) | 1983-09-12 | 1984-09-11 | Procede de purification de solutions aqueuses. |
US06/649,712 US4566975A (en) | 1983-09-12 | 1984-09-12 | Method for purifying aqueous solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8304858A SE452307B (sv) | 1983-09-12 | 1983-09-12 | Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8304858D0 SE8304858D0 (sv) | 1983-09-12 |
SE8304858L SE8304858L (sv) | 1985-03-13 |
SE452307B true SE452307B (sv) | 1987-11-23 |
Family
ID=20352439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8304858A SE452307B (sv) | 1983-09-12 | 1983-09-12 | Forfarande for rening av fororenade vattenlosningar innehallande arsenik och/eller fosfor |
Country Status (15)
Country | Link |
---|---|
US (1) | US4566975A (es) |
EP (1) | EP0139622B1 (es) |
JP (1) | JPS60143893A (es) |
AT (1) | ATE31289T1 (es) |
BR (1) | BR8404502A (es) |
CA (1) | CA1253981A (es) |
DE (1) | DE3468010D1 (es) |
ES (1) | ES8603355A1 (es) |
GR (1) | GR80306B (es) |
MA (1) | MA20224A1 (es) |
MX (1) | MX7707E (es) |
PT (1) | PT79186B (es) |
SE (1) | SE452307B (es) |
YU (1) | YU43855B (es) |
ZA (1) | ZA846790B (es) |
Families Citing this family (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0195297B1 (de) * | 1985-03-06 | 1991-05-02 | Karl Clemens Käuffer | Verfahren und Vorrichtung zum Schliessen der Kreisläufe bei der Reinigung von Wasser und Abwasser |
US4724084A (en) * | 1986-03-28 | 1988-02-09 | The Boeing Company | System for removing toxic organics and metals from manufacturing wastewater |
DE3633066C2 (de) * | 1986-09-29 | 1993-12-02 | Fraunhofer Ges Forschung | Verfahren zum Entfernen von Arsen aus Prozeßwässern der Glasindustrie |
ZA883753B (en) * | 1987-06-18 | 1989-03-29 | Bethlehem Steel Corp | Process for chemical stabilization of heavy metal bearing dusts and sludge,such as eaf dust |
US5259697A (en) * | 1987-06-18 | 1993-11-09 | Bethlehem Steel Corporation | Composition and process for forming low permeability barriers for waste disposal sites |
US4840671A (en) * | 1987-06-18 | 1989-06-20 | Bethlehem Steel Corporation | Process for chemical stabilization of heavy metal bearing dusts and sludges as EAF dust |
US4814091A (en) * | 1987-06-29 | 1989-03-21 | The United States Of America As Represented By The United States Department Of Energy | Process for removing metals from water |
SE465513B (sv) * | 1988-10-11 | 1991-09-23 | Boliden Contech Ab | Foerfarande foer rening av foerorenade vattenloesningar |
US4940549A (en) * | 1989-01-31 | 1990-07-10 | Santina Water Company | Method for removing toxic metals from agricultural drain water |
DE3908491A1 (de) * | 1989-03-15 | 1990-09-20 | Fraunhofer Ges Forschung | Verfahren zur entfernung von arsen und/oder antimon aus loesungen, die arsen und/oder antimon als anionische fluorokomplexe enthalten |
EP0389661B1 (de) * | 1989-03-31 | 1993-11-10 | Walhalla-Kalk Entwicklungs- und Vertriebsgesellschaft mbH | Verfahren zur Abtrennung von Arsen aus Abwässern |
CA1333106C (en) * | 1989-05-24 | 1994-11-15 | Serena Jane Domvile | Process for removal of inorganic and cyanide contaminants from wastewater |
US5039428B1 (en) * | 1990-03-05 | 1994-04-12 | Tetra Technologoes Inc | Waste water treatment process using improved recycle of high density sludge |
US5128047A (en) * | 1990-04-20 | 1992-07-07 | Rhone-Poulenc Inc. | Sequential separation of metals by controlled pH precipitation |
US5252003A (en) * | 1990-10-29 | 1993-10-12 | International Technology Corporation | Attenuation of arsenic leaching from particulate material |
JPH04210293A (ja) * | 1990-12-12 | 1992-07-31 | Kubota Corp | 排水の水銀回収方法及び水銀回収装置 |
US5543049A (en) * | 1991-02-04 | 1996-08-06 | Delman R. Hogen | Microbial mediated water treatment |
US5545331A (en) * | 1991-04-08 | 1996-08-13 | Romar Technologies, Inc. | Recycle process for removing dissolved heavy metals from water with iron particles |
US5976383A (en) * | 1991-04-08 | 1999-11-02 | Romar Technologies, Inc. | Recycle process for removing dissolved heavy metals from water with aluminum particles |
US5200082A (en) * | 1991-07-02 | 1993-04-06 | Santina Water Company | Method for removing toxic substances from industrial and agricultural waste water |
US5368703A (en) * | 1992-05-12 | 1994-11-29 | Anco Environmental Processes, Inc. | Method for arsenic removal from wastewater |
US5348662A (en) * | 1992-05-14 | 1994-09-20 | Elf Atochem North America, Inc. | Process for removing heavy metals from aqueous solutions |
US5262063A (en) * | 1992-05-14 | 1993-11-16 | Elf Atochem North America, Inc. | Multiple-stage precipitation process for heavy metals in aqueous solution |
CA2139863C (en) * | 1992-07-16 | 2000-05-09 | Delman R. Hogen | Microbial mediated method for soil and water treatment |
SE508836C2 (sv) * | 1993-04-20 | 1998-11-09 | Boliden Contech Ab | Förfarande för rening av industriellt avloppsvatten genom utfällning i två steg |
FI97288C (fi) * | 1993-08-26 | 1996-11-25 | Kemira Oy | Jätevesilietteen käsittelymenetelmä |
US5616168A (en) * | 1994-02-28 | 1997-04-01 | Kennecott Utah Copper Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
US5443622A (en) * | 1994-02-28 | 1995-08-22 | Kennecott Corporation | Hydrometallurgical processing of impurity streams generated during the pyrometallurgy of copper |
JPH09192677A (ja) * | 1996-01-16 | 1997-07-29 | Mitsubishi Heavy Ind Ltd | ひ素含有廃水の処理方法 |
US5762891A (en) * | 1996-02-27 | 1998-06-09 | Hazen Research, Inc. | Process for stabilization of arsenic |
US6254783B1 (en) | 1996-03-11 | 2001-07-03 | Stephen R. Wurzburger | Treatment of contaminated waste water |
US5728295A (en) * | 1996-04-19 | 1998-03-17 | Fuji Hunt Photographic Chemicals, Inc. | Apparatus for removing metal ions and/or complexes containing metal ions from a solution |
JP2000512687A (ja) | 1996-05-20 | 2000-09-26 | アペックス・リズィデュー・リカバリー・インコーポレーテッド | 鉛塩の回収を含むフライアッシュ/apc残留物の処理 |
US6117333A (en) * | 1997-04-22 | 2000-09-12 | Union Oil Company Of California | Removal of hydrocarbons, mercury and arsenic from oil-field produced water |
US6387276B1 (en) * | 1997-06-19 | 2002-05-14 | The University Of Connecticut | Immobilization of inorganic arsenic species using iron |
US6042721A (en) * | 1997-07-23 | 2000-03-28 | Fabco Industries, Inc. | Effluent treatment apparatus |
US6251283B1 (en) * | 1999-09-03 | 2001-06-26 | Perma-Fix Environmental Services, Inc. | Methods for removing selenium from a waste stream |
US6177015B1 (en) * | 1999-10-18 | 2001-01-23 | Inco Limited | Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution |
US6398968B1 (en) * | 2000-02-25 | 2002-06-04 | Watermark Technologies, Llc | Methods for pressure stabilized removal of contaminants from solution |
AU2002222360A1 (en) | 2000-12-14 | 2002-06-24 | Barrick Gold Corporation | Process for recovering arsenic from acidic aqueous solution |
US6821434B1 (en) | 2001-10-10 | 2004-11-23 | Sandia Corporation | System for removal of arsenic from water |
US7247242B1 (en) | 2001-10-10 | 2007-07-24 | Sandia Corporation | Arsenic removal from water |
AU2003287636A1 (en) * | 2002-11-13 | 2004-06-03 | Cargill, Incorporated | Isolating chondroitin sulfate |
US20100187178A1 (en) * | 2003-01-29 | 2010-07-29 | Molycorp Minerals, Llc | Process for removing and sequestering contaminants from aqueous streams |
US6863825B2 (en) * | 2003-01-29 | 2005-03-08 | Union Oil Company Of California | Process for removing arsenic from aqueous streams |
TW559617B (en) * | 2003-05-07 | 2003-11-01 | Ind Tech Res Inst | Method for removing arsenic from water |
KR100926915B1 (ko) * | 2004-04-26 | 2009-11-17 | 미쓰비시 마테리알 가부시키가이샤 | 폐수 처리방법 및 폐수 처리장치 |
US7279103B2 (en) * | 2005-09-13 | 2007-10-09 | United States Of America Enviromental Protection Agency | Process for the purification of acidic metal-bearing waste waters to permissible discharge levels with recovery of marketable metal products |
US8066874B2 (en) * | 2006-12-28 | 2011-11-29 | Molycorp Minerals, Llc | Apparatus for treating a flow of an aqueous solution containing arsenic |
US8252087B2 (en) * | 2007-10-31 | 2012-08-28 | Molycorp Minerals, Llc | Process and apparatus for treating a gas containing a contaminant |
US20090107919A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing chemical contaminants |
US8349764B2 (en) | 2007-10-31 | 2013-01-08 | Molycorp Minerals, Llc | Composition for treating a fluid |
US20090107925A1 (en) * | 2007-10-31 | 2009-04-30 | Chevron U.S.A. Inc. | Apparatus and process for treating an aqueous solution containing biological contaminants |
TW201038510A (en) * | 2009-03-16 | 2010-11-01 | Molycorp Minerals Llc | Porous and durable ceramic filter monolith coated with a rare earth for removing contaminates from water |
AR076275A1 (es) * | 2009-04-09 | 2011-06-01 | Molycorp Minerals Llc | Uso de una tierra rara para la remocion de antimonio y bismuto |
US20110110817A1 (en) * | 2009-11-09 | 2011-05-12 | Molycorp Minerals, Llc | Rare earth removal of colorants |
US20110220577A1 (en) * | 2010-03-12 | 2011-09-15 | Council Of Scientific & Industrial Research | Process for the removal of arsenic and chromium from water |
US8287619B2 (en) | 2010-06-08 | 2012-10-16 | C.V.G. Ferrominera Orinoco C.A. | Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content |
US9233863B2 (en) | 2011-04-13 | 2016-01-12 | Molycorp Minerals, Llc | Rare earth removal of hydrated and hydroxyl species |
MX370462B (es) | 2014-03-07 | 2019-12-13 | Secure Natural Resources Llc | Oxido de cerio (iv) con propiedades de remocion de arsenico excepcionales. |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1642399A1 (de) * | 1967-09-12 | 1971-05-06 | Dorr Oliver Inc | Verfahren zur Abwasserbehandlung unter Phosphorentfernung |
US3423309A (en) * | 1968-03-22 | 1969-01-21 | Dorr Oliver Inc | Waste treatment for phosphate removal |
US3617569A (en) * | 1970-07-31 | 1971-11-02 | Dow Chemical Co | Removal of phosphate from waste water |
US3725265A (en) * | 1971-01-22 | 1973-04-03 | Grace W R & Co | Purification of waste water |
SU389691A1 (ru) * | 1971-04-12 | 1977-08-05 | Уральский Научно-Исследовательский И Проектный Институт Медной Промышленности | Способ очистки кислых сточных вод |
JPS5075562A (es) * | 1973-11-08 | 1975-06-20 | ||
JPS5110028A (ja) * | 1974-07-15 | 1976-01-27 | Kubota Ltd | Idonoki |
JPS5126759A (en) * | 1974-08-30 | 1976-03-05 | Hitachi Plant Eng & Constr Co | Hisoganjuhaisui no shorihoho |
ES438937A1 (es) * | 1975-06-30 | 1977-02-16 | Borax Cons Ltd | Un procedimiento para la eliminacion de arsenico de solucio-nes acuosas acidas que lo contienen. |
SE403277B (sv) * | 1976-04-09 | 1978-08-07 | Boliden Ab | Forfarande vid vatrening av gaser innehallande svaveldioxid, halogener och minst ett forflyktigat emne ur gruppen omfattande arsenik och arsenikforeningar |
US4201667A (en) * | 1979-02-09 | 1980-05-06 | Fmc Corporation | Process for removing arsenic from aqueous mediums |
SU859321A1 (ru) * | 1979-08-03 | 1981-08-30 | Центральный научно-исследовательский институт оловянной промышленности | Способ очистки сточных вод от мышь ка |
CA1139466A (en) * | 1980-08-22 | 1983-01-11 | Donald R. Weir | Removal of arsenic from aqueous solutions |
-
1983
- 1983-09-12 SE SE8304858A patent/SE452307B/sv not_active IP Right Cessation
-
1984
- 1984-08-28 MX MX8411273U patent/MX7707E/es unknown
- 1984-08-29 CA CA000462010A patent/CA1253981A/en not_active Expired
- 1984-08-30 ZA ZA846790A patent/ZA846790B/xx unknown
- 1984-08-30 ES ES535544A patent/ES8603355A1/es not_active Expired
- 1984-09-06 GR GR80306A patent/GR80306B/el unknown
- 1984-09-07 AT AT84850259T patent/ATE31289T1/de not_active IP Right Cessation
- 1984-09-07 DE DE8484850259T patent/DE3468010D1/de not_active Expired
- 1984-09-07 EP EP84850259A patent/EP0139622B1/en not_active Expired
- 1984-09-10 BR BR8404502A patent/BR8404502A/pt not_active IP Right Cessation
- 1984-09-11 PT PT79186A patent/PT79186B/pt not_active IP Right Cessation
- 1984-09-11 MA MA20448A patent/MA20224A1/fr unknown
- 1984-09-11 YU YU1569/84A patent/YU43855B/xx unknown
- 1984-09-11 JP JP59190444A patent/JPS60143893A/ja active Granted
- 1984-09-12 US US06/649,712 patent/US4566975A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
MX7707E (es) | 1990-09-25 |
ZA846790B (en) | 1985-04-24 |
ES535544A0 (es) | 1985-12-16 |
ATE31289T1 (de) | 1987-12-15 |
PT79186A (en) | 1984-10-01 |
DE3468010D1 (en) | 1988-01-21 |
EP0139622A1 (en) | 1985-05-02 |
YU43855B (en) | 1989-12-31 |
PT79186B (en) | 1986-08-14 |
BR8404502A (pt) | 1985-08-06 |
ES8603355A1 (es) | 1985-12-16 |
MA20224A1 (fr) | 1985-04-01 |
JPS60143893A (ja) | 1985-07-30 |
SE8304858L (sv) | 1985-03-13 |
YU156984A (en) | 1987-06-30 |
EP0139622B1 (en) | 1987-12-09 |
SE8304858D0 (sv) | 1983-09-12 |
GR80306B (en) | 1985-01-08 |
US4566975A (en) | 1986-01-28 |
CA1253981A (en) | 1989-05-09 |
JPH0521637B2 (es) | 1993-03-25 |
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