NO801100L - Fremgangsmaate for lufting av blandinger som inneholder faste stoffer. - Google Patents
Fremgangsmaate for lufting av blandinger som inneholder faste stoffer.Info
- Publication number
- NO801100L NO801100L NO801100A NO801100A NO801100L NO 801100 L NO801100 L NO 801100L NO 801100 A NO801100 A NO 801100A NO 801100 A NO801100 A NO 801100A NO 801100 L NO801100 L NO 801100L
- Authority
- NO
- Norway
- Prior art keywords
- bubble
- vessel
- equivalent
- liquid
- gas
- Prior art date
Links
- 239000007787 solid Substances 0.000 title claims description 43
- 238000000034 method Methods 0.000 title claims description 38
- 239000000203 mixture Substances 0.000 title claims description 36
- 239000000126 substance Substances 0.000 title 1
- 238000005520 cutting process Methods 0.000 claims description 109
- 238000005273 aeration Methods 0.000 claims description 30
- 239000008247 solid mixture Substances 0.000 claims description 18
- 230000000630 rising effect Effects 0.000 claims description 10
- 239000010801 sewage sludge Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 65
- 239000007788 liquid Substances 0.000 description 39
- 238000012546 transfer Methods 0.000 description 20
- 230000015556 catabolic process Effects 0.000 description 13
- 238000000354 decomposition reaction Methods 0.000 description 13
- 239000010802 sludge Substances 0.000 description 13
- 230000033001 locomotion Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 238000006731 degradation reaction Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 238000005086 pumping Methods 0.000 description 8
- 239000008399 tap water Substances 0.000 description 8
- 235000020679 tap water Nutrition 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 8
- 230000007423 decrease Effects 0.000 description 7
- 239000006260 foam Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 230000007480 spreading Effects 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004581 coalescence Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000009928 pasteurization Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 231100000206 health hazard Toxicity 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011328 necessary treatment Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/20—Activated sludge processes using diffusers
- C02F3/205—Moving, e.g. rotary, diffusers; Stationary diffusers with moving, e.g. rotary, distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23311—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23314—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/2366—Parts; Accessories
- B01F23/2368—Mixing receptacles, e.g. tanks, vessels or reactors, being completely closed, e.g. hermetically closed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2331—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23313—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a separate conduit substantially parallel with the stirrer axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
- B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
- B01F23/23362—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced under the stirrer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
-
- 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
- Y10S261/00—Gas and liquid contact apparatus
- Y10S261/27—Gas circulated in circuit
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Treatment Of Sludge (AREA)
- Detergent Compositions (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/031,296 US4240905A (en) | 1979-04-18 | 1979-04-18 | High solids mixture aeration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO801100L true NO801100L (no) | 1980-10-20 |
Family
ID=21858654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO801100A NO801100L (no) | 1979-04-18 | 1980-04-16 | Fremgangsmaate for lufting av blandinger som inneholder faste stoffer. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4240905A (de) |
| EP (1) | EP0017989B1 (de) |
| JP (1) | JPS55157385A (de) |
| AU (1) | AU532882B2 (de) |
| BR (1) | BR8002348A (de) |
| CA (1) | CA1137659A (de) |
| DE (1) | DE3060870D1 (de) |
| DK (1) | DK163880A (de) |
| ES (1) | ES490614A0 (de) |
| IN (1) | IN154074B (de) |
| NO (1) | NO801100L (de) |
| PH (1) | PH17591A (de) |
| PL (1) | PL127325B1 (de) |
| ZA (1) | ZA801755B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3514850A1 (de) * | 1985-04-24 | 1986-11-06 | EKATO Industrieanlagen Verwaltungsgesellschaft mbH u. Co, 7860 Schopfheim | Verfahren und vorrichtung zur herstellung von oelbasiertem bohrschlamm |
| DE3810790C2 (de) * | 1988-03-30 | 1999-09-16 | Jaeger Arnold | Vorrichtung zum Belüften von Wasser |
| US5431860A (en) * | 1991-02-01 | 1995-07-11 | Richter Gedeon Vegyeszeti Gyar Rt. | Complex mixing device for dispersion of gases in liquid |
| HU207669B (en) * | 1991-02-01 | 1993-05-28 | Richter Gedeon Vegyeszet | Complex mixing apparatus for dispersing gases in fluid |
| US5988604A (en) * | 1997-10-10 | 1999-11-23 | General Signal Corporation | Mixing impellers especially adapted for use in surface aeration |
| AU2003234555A1 (en) * | 2002-05-14 | 2003-12-02 | Fmc Corporation | Microcrystalline cewllulose compositions |
| US7041215B2 (en) * | 2004-01-15 | 2006-05-09 | Yes-Sun Holdings Limited | System for composting-free disposal of organic wastes |
| US9200528B2 (en) | 2012-09-11 | 2015-12-01 | General Electric Company | Swirl interruption seal teeth for seal assembly |
| US9533269B2 (en) * | 2014-04-15 | 2017-01-03 | Guangdong Xinbao Electric Joint-Stock Ltd. | Multifunctional food processor |
| CN107774181A (zh) * | 2016-08-31 | 2018-03-09 | 上海柏阁日用品有限公司 | 带有叶片的液体搅拌器 |
| CN110655180B (zh) * | 2019-09-30 | 2020-07-03 | 南京大学 | 一种填料固定装置及其在污水厂提标改造中的应用 |
| KR102403990B1 (ko) * | 2021-12-22 | 2022-05-31 | (주)인벤티지랩 | 용매 제거 장치 및 이를 이용한 미소구체 제조 방법 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US490525A (en) * | 1893-01-24 | Mixing apparatus | ||
| US2431478A (en) * | 1942-07-25 | 1947-11-25 | Raymond P Hill | Bleaching fibrous material |
| US2928661A (en) * | 1958-06-09 | 1960-03-15 | Albert S Maclaren | Gas and liquid mixing apparatus |
| US3154601A (en) * | 1959-08-06 | 1964-10-27 | Glatfelter Co P H | Aerator |
| US3210053A (en) * | 1964-08-04 | 1965-10-05 | Carl F Boester | Aerator structure |
| US3408051A (en) * | 1966-02-23 | 1968-10-29 | Mixing Equipment Co Inc | Column mixing apparatus |
| LU55749A1 (de) * | 1968-03-22 | 1968-06-10 | ||
| US3779531A (en) * | 1970-08-21 | 1973-12-18 | R White | Top driven material shearing mixer and aerator |
| US3775307A (en) * | 1971-04-08 | 1973-11-27 | Union Carbide Corp | System for gas sparging into liquid |
| US3815879A (en) * | 1972-07-10 | 1974-06-11 | E Mikhailov | Device for stirring and aerating liquids in mass-exchange apparatus |
| US3968035A (en) * | 1973-04-05 | 1976-07-06 | Eli Lilly And Company | Super-oxygenation method |
| US3969446A (en) * | 1974-06-03 | 1976-07-13 | Franklin Jr Grover C | Apparatus and method for aerating liquids |
| US3926794A (en) * | 1974-06-28 | 1975-12-16 | Union Carbide Corp | Warm sludge digestion with oxygen |
| US4058433A (en) * | 1975-03-06 | 1977-11-15 | Gulf States Paper Corporation | Conversion of sulfur in blank liquor to eliminate odorous emissions and facilitate the collection of sulfate soaps |
| NO137651C (no) * | 1975-10-31 | 1978-03-29 | Myrens Verksted As | Fremgangsmaate og apparat til kontinuerlig behandling av findelt fibermateriale eller celluloseholdig masse med gass uten overtrykk. |
-
1979
- 1979-04-18 US US06/031,296 patent/US4240905A/en not_active Expired - Lifetime
-
1980
- 1980-03-25 ZA ZA00801755A patent/ZA801755B/xx unknown
- 1980-04-02 IN IN238/DEL/80A patent/IN154074B/en unknown
- 1980-04-03 CA CA000349227A patent/CA1137659A/en not_active Expired
- 1980-04-15 JP JP4880080A patent/JPS55157385A/ja active Granted
- 1980-04-16 ES ES490614A patent/ES490614A0/es active Granted
- 1980-04-16 NO NO801100A patent/NO801100L/no unknown
- 1980-04-16 BR BR8002348A patent/BR8002348A/pt unknown
- 1980-04-17 DE DE8080102067T patent/DE3060870D1/de not_active Expired
- 1980-04-17 AU AU57551/80A patent/AU532882B2/en not_active Ceased
- 1980-04-17 EP EP19800102067 patent/EP0017989B1/de not_active Expired
- 1980-04-17 PL PL1980223541A patent/PL127325B1/pl unknown
- 1980-04-17 DK DK163880A patent/DK163880A/da not_active Application Discontinuation
- 1980-04-17 PH PH23911A patent/PH17591A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55157385A (en) | 1980-12-08 |
| IN154074B (de) | 1984-09-15 |
| PH17591A (en) | 1984-10-02 |
| ZA801755B (en) | 1981-03-25 |
| PL223541A1 (de) | 1981-02-13 |
| EP0017989A1 (de) | 1980-10-29 |
| CA1137659A (en) | 1982-12-14 |
| DK163880A (da) | 1980-10-19 |
| EP0017989B1 (de) | 1982-09-22 |
| ES8102993A1 (es) | 1981-02-16 |
| AU532882B2 (en) | 1983-10-20 |
| ES490614A0 (es) | 1981-02-16 |
| US4240905A (en) | 1980-12-23 |
| BR8002348A (pt) | 1980-12-02 |
| JPS5752877B2 (de) | 1982-11-10 |
| PL127325B1 (en) | 1983-10-31 |
| AU5755180A (en) | 1980-10-23 |
| DE3060870D1 (en) | 1982-11-04 |
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