DK152094C - Fremgangsmaade til behandling af affald indeholdende tungmetalholdige forureninger - Google Patents
Fremgangsmaade til behandling af affald indeholdende tungmetalholdige forureningerInfo
- Publication number
- DK152094C DK152094C DK321276A DK321276A DK152094C DK 152094 C DK152094 C DK 152094C DK 321276 A DK321276 A DK 321276A DK 321276 A DK321276 A DK 321276A DK 152094 C DK152094 C DK 152094C
- Authority
- DK
- Denmark
- Prior art keywords
- procedure
- treatment
- heavy metal
- containing heavy
- waste containing
- Prior art date
Links
Classifications
-
- 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
- C04B18/0463—Hazardous waste
-
- 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
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/021—Agglomerated materials, e.g. artificial aggregates agglomerated by a mineral binder, e.g. cement
-
- 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
- C04B28/24—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 alkyl, ammonium or metal silicates; containing silica sols
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/04—Treating liquids
- G21F9/06—Processing
- G21F9/16—Processing by fixation in stable solid media
- G21F9/162—Processing by fixation in stable solid media in an inorganic matrix, e.g. clays, zeolites
- G21F9/165—Cement or cement-like matrix
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/28—Treating solids
- G21F9/30—Processing
- G21F9/301—Processing by fixation in stable solid media
- G21F9/302—Processing by fixation in stable solid media in an inorganic matrix
- G21F9/304—Cement or cement-like matrix
-
- 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
- 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
- Y10S210/913—Chromium
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Civil Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Fire-Extinguishing Compositions (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE158349 | 1975-07-16 | ||
BE158349A BE831427A (fr) | 1975-07-16 | 1975-07-16 | Procede de traitement de dechets et produits obtenus |
Publications (3)
Publication Number | Publication Date |
---|---|
DK321276A DK321276A (da) | 1977-01-17 |
DK152094B DK152094B (da) | 1988-02-01 |
DK152094C true DK152094C (da) | 1988-09-12 |
Family
ID=3842795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK321276A DK152094C (da) | 1975-07-16 | 1976-07-15 | Fremgangsmaade til behandling af affald indeholdende tungmetalholdige forureninger |
Country Status (20)
Country | Link |
---|---|
US (1) | US4404105A (fr) |
JP (1) | JPS5212759A (fr) |
AT (1) | AT350011B (fr) |
AU (1) | AU507920B2 (fr) |
BE (1) | BE831427A (fr) |
BR (1) | BR7605721A (fr) |
CA (1) | CA1073476A (fr) |
CH (1) | CH598152A5 (fr) |
DE (1) | DE2628656C2 (fr) |
DK (1) | DK152094C (fr) |
ES (1) | ES449647A1 (fr) |
FI (1) | FI762022A (fr) |
FR (1) | FR2318125A1 (fr) |
GB (1) | GB1518024A (fr) |
IT (1) | IT1064668B (fr) |
LU (1) | LU75274A1 (fr) |
NL (1) | NL183123C (fr) |
NO (1) | NO149542C (fr) |
SE (1) | SE433573B (fr) |
ZA (1) | ZA764213B (fr) |
Families Citing this family (58)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2531056C3 (de) * | 1975-07-11 | 1980-06-12 | Kernforschungsanlage Juelich Gmbh, 5170 Juelich | Verfahren zum Verfestigen einer radioaktive oder toxische Abfallstoffe enthaltenden wäßrigen Lösung |
US4113504A (en) * | 1977-10-03 | 1978-09-12 | Stauffer Chemical Company | Disposal of heavy metal containing sludge wastes |
CA1166548A (fr) * | 1979-07-13 | 1984-05-01 | Kasane Yamashita | Agents et methode de traitement de metaux lourds en solution |
ZA807812B (en) * | 1979-12-21 | 1981-12-30 | Stablex Ag | Treatment of hazardous waste |
LU82089A1 (fr) * | 1980-01-16 | 1981-09-10 | Sipac | Procede de preparation d'un echangeur de cations et procede d'utilisation de cet echangeur pour l'extraction de metaux de liquides |
WO1982000998A1 (fr) * | 1980-09-19 | 1982-04-01 | Bye G | Procede de traitement de dechets |
US4701219A (en) * | 1982-02-08 | 1987-10-20 | Ashland Oil, Inc. | Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor |
US5028272A (en) * | 1982-02-08 | 1991-07-02 | Ashland Oil, Inc. | Inhibiting leaching of metals from catalysts and sorbents and compositions and methods therefor |
US4517095A (en) * | 1982-09-27 | 1985-05-14 | Ceaser Anthony V | Fluoride containing compositions for removal of pollutants from waste waters and methods of utilizing same |
JPS60139445A (ja) * | 1983-12-27 | 1985-07-24 | 株式会社イノアックコーポレーション | フレ−ムラミネ−シヨン用難燃ポリウレタンフオ−ム |
DE3574165D1 (en) * | 1984-01-12 | 1989-12-14 | Pelt & Hooykaas | A method of processing waste materials, particularly a sludge containing noxious metals |
US4504321A (en) * | 1984-02-17 | 1985-03-12 | Trident Engineering Associates, Inc. | Process for treating and stabilizing chromium ore waste |
US4705638A (en) * | 1984-05-03 | 1987-11-10 | The University Of Toronto Innovations Foundation | Waste water treatment |
US4664895A (en) * | 1984-07-10 | 1987-05-12 | Westinghouse Electric Corp. | High concentration boric acid solidification process |
NL8403501A (nl) * | 1984-11-15 | 1986-06-02 | Pelt & Hooykaas | Werkwijze voor het omzetten in onschadelijke vorm van bij chemische of fysische werkwijzen vrijkomende deeltjes door mengen met een gesmolten silicaathoudend materiaal alsmede gevormd materiaal. |
US4839022A (en) * | 1984-12-03 | 1989-06-13 | Atlantic Richfield Company | Method and apparatus for treating oil-water-solids sludges and refinery waste streams |
US4668124A (en) * | 1985-04-22 | 1987-05-26 | Engelhard Corporation | Disposal of material containing vanadium as landfill |
AT387766B (de) * | 1985-09-10 | 1989-03-10 | Steirische Magnesit Ind Ag | Verfahren zum herstellen von klinkern aus schwermetallhaltigen schlaemmen |
FR2596909B1 (fr) * | 1986-04-08 | 1993-05-07 | Tech Nles Ste Gle | Procede d'immobilisation de dechets nucleaires dans un verre borosilicate |
US4687373A (en) * | 1986-05-21 | 1987-08-18 | Lopat Industries, Inc. | Composition to encapsulate toxic metal and/or organic pollutants from wastes |
JPS63130189A (ja) * | 1986-11-21 | 1988-06-02 | Suido Kiko Kk | 水処理方法及び水処理用凝集剤 |
JPH066177B2 (ja) * | 1987-01-13 | 1994-01-26 | 大豊産業株式会社 | 産業廃棄物を利用した液状有機ハロゲン化物の固定化処理剤、同固定化処理方法及び同燃焼処理方法 |
US4793933A (en) * | 1987-11-16 | 1988-12-27 | Rostoker, Inc. | Waste treatment method for metal hydroxide electroplating sludges |
US4853208A (en) * | 1988-03-21 | 1989-08-01 | Chemfix Technologies, Icc. | Method of binding wastes in alkaline silicate matrix |
ES2061562T3 (es) * | 1988-06-06 | 1994-12-16 | Sanipor International Ag | Metodo para mejorar la resistencia e impermeabilidad de suelos y estructuras de ingenieria. |
US4889640A (en) * | 1988-06-10 | 1989-12-26 | Rmt, Inc. | Method and mixture for treating hazardous wastes |
US4950409A (en) * | 1988-06-10 | 1990-08-21 | Stanforth Robert R | Method for treating hazardous wastes |
US5069720A (en) * | 1988-06-17 | 1991-12-03 | Fuel Tech, Inc. | Method and composition for the reduction of ammonia emissions from non-acidic residue |
MX171672B (es) * | 1988-07-19 | 1993-11-10 | Safe Waste Systems Inc | Composicion para encapsular cromo, arsenico y otros metales toxicos presentes en desechos y procedimiento para tratar los mismos |
NL8802398A (nl) * | 1988-09-29 | 1990-04-17 | Pelt & Hooykaas | Werkwijze voor het onschadelijk maken van giftig afval. |
US5174972A (en) * | 1989-01-23 | 1992-12-29 | Azar David G | Fluorogypsum waste solidification material |
US5236599A (en) * | 1989-06-14 | 1993-08-17 | Imperial Chemical Industries Plc | Water treatment process |
US4948516A (en) * | 1989-08-21 | 1990-08-14 | Monsanto Company | Method of disposing of wastes containing heavy metal compounds |
DE3941825A1 (de) * | 1989-12-19 | 1991-06-20 | Huels Chemische Werke Ag | Verfahren zur abwasserfreien aufarbeitung von rueckstaenden einer chlorsilandestillation mit calciumcarbonat |
DE69101530T2 (de) * | 1990-10-01 | 1994-07-28 | Suido Kiko K K | Flockungsmittel für Wasseraufbereitung und Verfahren für seine Herstellung. |
US5211871A (en) * | 1991-02-11 | 1993-05-18 | Imperial Chemical Industreis Plc | Water treatment agent |
GB9102796D0 (en) * | 1991-02-11 | 1991-03-27 | Ici Plc | Water treatment agent |
US5718857A (en) * | 1991-06-12 | 1998-02-17 | Ferrock Corporation (Australia) Pty. Ltd. | Process for forming solid aggregates including shaped articles |
NL9102131A (nl) * | 1991-12-19 | 1993-07-16 | Pelt & Hooykaas | Werkwijze voor het fixeren van afvalmateriaal. |
DE4240589A1 (de) * | 1992-12-03 | 1994-06-09 | Bayer Ag | Verfahren zur gegenseitigen chemischen Behandlung und Verfestigung anorganischer Abfälle |
FR2714625A1 (fr) * | 1993-12-30 | 1995-07-07 | Cordi Geopolymere Sa | Procédé d'inertage de déchets toxiques. |
US5549820A (en) * | 1994-03-04 | 1996-08-27 | Eastman Kodak Company | Apparatus for removing a component from solution |
US5439505A (en) * | 1994-10-24 | 1995-08-08 | Krofchak; David | Treatment of steel mill waste for recycling |
US5573576A (en) * | 1994-10-24 | 1996-11-12 | International Solidification, Inc. | Method of treating steel mill waste |
US5494863A (en) * | 1994-12-13 | 1996-02-27 | Vortec Corporation | Process for nuclear waste disposal |
US5570469A (en) * | 1995-01-06 | 1996-10-29 | Lockheed Martin Corporation | Method for removing metal contaminants from flue dust |
US5958462A (en) * | 1997-05-23 | 1999-09-28 | Mclean; Linsey | Therapeutic bath salts and method of use |
US6183650B1 (en) * | 1998-05-04 | 2001-02-06 | Minerals Technologies Inc. | Synthetic mineral microparticles and retention aid and water treatment systems and methods using such particles |
US20030124256A1 (en) * | 2000-04-10 | 2003-07-03 | Omnishield, Inc. | Omnishield process and product |
US20060008402A1 (en) * | 2004-07-12 | 2006-01-12 | Robles Antonio T | Method for preparing activated silica for water treatment |
US20110049057A1 (en) * | 2009-09-02 | 2011-03-03 | Grubb Dennis G | Metal Immobilization Using Slag Fines |
RU2477708C2 (ru) * | 2011-07-01 | 2013-03-20 | Федеральное государственное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения" | Способ очистки сточных вод от ионов меди |
IL220731A (en) * | 2012-07-02 | 2013-09-30 | Gilad Golub | Method for stabilizing waste and hazardous waste |
GB2522173A (en) * | 2013-10-02 | 2015-07-22 | Nat Nuclear Lab Ltd | Encapsulation of Waste Materials |
CN106924926A (zh) * | 2017-04-07 | 2017-07-07 | 张洪 | 一种飞灰重金属固化剂及其固化方法 |
CN112520749A (zh) * | 2020-12-16 | 2021-03-19 | 青岛惠城环保科技股份有限公司 | 一种石油焦气化灰渣的处理方法 |
CN115703077B (zh) * | 2021-08-10 | 2024-05-14 | 中国科学院大连化学物理研究所 | 一种PB@MoS2催化剂在非均相类芬顿反应中的应用 |
CN114260288B (zh) * | 2021-12-27 | 2022-11-04 | 江苏大昱环保工程有限公司 | 一种焚烧炉炉底灰材料回收装置 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2217466A (en) * | 1937-09-17 | 1940-10-08 | City Of Chicago | Composition of matter for water treatment |
US2746920A (en) * | 1952-07-07 | 1956-05-22 | John M Wunderley | Waster pickle liquor disposal |
US3094846A (en) * | 1961-02-27 | 1963-06-25 | Diamond Alkali Co | Treatement of earth strata containing acid forming chemicals |
GB1066192A (en) * | 1962-10-22 | 1967-04-19 | Cementation Co Ltd | Improvements in or relating to silicate grout |
US3388060A (en) * | 1964-07-29 | 1968-06-11 | Parsons Brinckerhoff Quade & D | Process and composition for purification of water supplies and aqueous wastes |
CA965966A (en) * | 1970-01-08 | 1975-04-15 | Jesse R. Conner | Land improvement with waste materials |
US3720609A (en) * | 1970-04-17 | 1973-03-13 | G & W Corson Inc | Process for treating aqueous chemical waste sludges and composition produced thereby |
GB1356248A (en) * | 1970-11-05 | 1974-06-12 | Zirconal Processes Ltd | Silica-metal oxide co-gels |
US4116705A (en) * | 1973-06-01 | 1978-09-26 | Stablex Ag | Detoxification |
US3841102A (en) * | 1974-01-02 | 1974-10-15 | Environmental Sciences Inc | Method of improving the quality of leachate from sanitary landfills |
US3980558A (en) * | 1975-07-07 | 1976-09-14 | Browning-Ferris Industries, Inc. | Method of disposing sludges containing soluble toxic materials |
-
1975
- 1975-07-16 BE BE158349A patent/BE831427A/fr not_active IP Right Cessation
-
1976
- 1976-06-10 FR FR7617534A patent/FR2318125A1/fr active Granted
- 1976-06-20 NL NL7606685A patent/NL183123C/xx not_active IP Right Cessation
- 1976-06-25 DE DE2628656A patent/DE2628656C2/de not_active Expired
- 1976-06-30 LU LU75274A patent/LU75274A1/xx unknown
- 1976-06-30 SE SE7607462A patent/SE433573B/xx not_active IP Right Cessation
- 1976-07-07 ES ES449647A patent/ES449647A1/es not_active Expired
- 1976-07-07 JP JP8002376A patent/JPS5212759A/ja active Pending
- 1976-07-07 CA CA256,476A patent/CA1073476A/fr not_active Expired
- 1976-07-09 AT AT503676A patent/AT350011B/de not_active IP Right Cessation
- 1976-07-09 AU AU15757/76A patent/AU507920B2/en not_active Expired
- 1976-07-09 GB GB2857176A patent/GB1518024A/en not_active Expired
- 1976-07-12 FI FI762022A patent/FI762022A/fi not_active Application Discontinuation
- 1976-07-12 NO NO762434A patent/NO149542C/no unknown
- 1976-07-13 CH CH897276A patent/CH598152A5/xx not_active IP Right Cessation
- 1976-07-15 ZA ZA764213A patent/ZA764213B/xx unknown
- 1976-07-15 IT IT2534576A patent/IT1064668B/it active
- 1976-07-15 DK DK321276A patent/DK152094C/da not_active IP Right Cessation
- 1976-07-16 BR BR7605721A patent/BR7605721A/pt unknown
-
1981
- 1981-10-02 US US06/308,177 patent/US4404105A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ES449647A1 (es) | 1977-07-01 |
FR2318125B1 (fr) | 1980-01-25 |
DE2628656C2 (de) | 1984-04-26 |
US4404105A (en) | 1983-09-13 |
AU507920B2 (en) | 1980-03-06 |
NO762434L (fr) | 1977-01-18 |
BR7605721A (pt) | 1977-08-23 |
AT350011B (de) | 1979-05-10 |
NL183123C (nl) | 1988-08-01 |
NL183123B (nl) | 1988-03-01 |
DK152094B (da) | 1988-02-01 |
CH598152A5 (fr) | 1978-04-28 |
SE7607462L (sv) | 1977-01-17 |
ZA764213B (en) | 1977-07-27 |
NL7606685A (nl) | 1977-01-18 |
GB1518024A (en) | 1978-07-19 |
LU75274A1 (fr) | 1977-02-23 |
NO149542B (no) | 1984-01-30 |
DE2628656A1 (de) | 1977-02-03 |
DK321276A (da) | 1977-01-17 |
FR2318125A1 (fr) | 1977-02-11 |
FI762022A (fr) | 1977-01-17 |
NO149542C (no) | 1984-05-09 |
IT1064668B (it) | 1985-02-25 |
ATA503676A (de) | 1978-10-15 |
JPS5212759A (en) | 1977-01-31 |
CA1073476A (fr) | 1980-03-11 |
BE831427A (fr) | 1976-01-16 |
AU1575776A (en) | 1978-01-12 |
SE433573B (sv) | 1984-06-04 |
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