CA2171342A1 - Method and apparatus for absorbing hydrogen sulphide - Google Patents
Method and apparatus for absorbing hydrogen sulphideInfo
- Publication number
- CA2171342A1 CA2171342A1 CA002171342A CA2171342A CA2171342A1 CA 2171342 A1 CA2171342 A1 CA 2171342A1 CA 002171342 A CA002171342 A CA 002171342A CA 2171342 A CA2171342 A CA 2171342A CA 2171342 A1 CA2171342 A1 CA 2171342A1
- Authority
- CA
- Canada
- Prior art keywords
- gas
- solution
- hydrogen
- sulphide
- hydrogen sulphide
- 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.)
- Abandoned
Links
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000000243 solution Substances 0.000 claims abstract description 137
- 239000007789 gas Substances 0.000 claims abstract description 113
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 90
- 238000010521 absorption reaction Methods 0.000 claims abstract description 89
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 44
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 43
- 239000004291 sulphur dioxide Substances 0.000 claims abstract description 38
- 235000010269 sulphur dioxide Nutrition 0.000 claims abstract description 38
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 35
- 238000002485 combustion reaction Methods 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims abstract description 23
- 239000012670 alkaline solution Substances 0.000 claims abstract description 7
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 38
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 17
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 5
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract description 93
- 238000000926 separation method Methods 0.000 abstract description 18
- 239000003513 alkali Substances 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 11
- 230000009102 absorption Effects 0.000 description 82
- 235000011121 sodium hydroxide Nutrition 0.000 description 29
- 229940083608 sodium hydroxide Drugs 0.000 description 20
- 235000017550 sodium carbonate Nutrition 0.000 description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 229910001868 water Inorganic materials 0.000 description 13
- 239000005864 Sulphur Substances 0.000 description 12
- 229940001593 sodium carbonate Drugs 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000003546 flue gas Substances 0.000 description 8
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 6
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 229910052979 sodium sulfide Inorganic materials 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 3
- -1 NaOH Chemical class 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- 229910052783 alkali metal Inorganic materials 0.000 description 3
- 150000001340 alkali metals Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 235000012254 magnesium hydroxide Nutrition 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 description 2
- 150000008041 alkali metal carbonates Chemical class 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 229910000027 potassium carbonate Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- 101100367123 Caenorhabditis elegans sul-1 gene Proteins 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- 241000183024 Populus tremula Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229960003563 calcium carbonate Drugs 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229940095643 calcium hydroxide Drugs 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229940076701 hydro 35 Drugs 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 229960000816 magnesium hydroxide Drugs 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229940093932 potassium hydroxide Drugs 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
- D21C11/08—Deodorisation ; Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide or mercaptans, from gas streams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/64—Thiosulfates; Dithionites; Polythionates
- C01B17/66—Dithionites or hydrosulfites (S2O42-)
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9303034-4 | 1993-09-17 | ||
| SE9303034A SE501782C2 (sv) | 1993-09-17 | 1993-09-17 | Sätt och anordning för att selektivt avlägsna svavelväte från en gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2171342A1 true CA2171342A1 (en) | 1995-03-23 |
Family
ID=20391129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002171342A Abandoned CA2171342A1 (en) | 1993-09-17 | 1994-09-07 | Method and apparatus for absorbing hydrogen sulphide |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPH09502651A (no) |
| CN (1) | CN1066634C (no) |
| AU (1) | AU7712594A (no) |
| BR (1) | BR9407636A (no) |
| CA (1) | CA2171342A1 (no) |
| FI (1) | FI961237A0 (no) |
| NO (1) | NO305277B1 (no) |
| RU (1) | RU2119375C1 (no) |
| SE (1) | SE501782C2 (no) |
| WO (1) | WO1995007750A1 (no) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09183618A (ja) * | 1995-12-28 | 1997-07-15 | Kansai Electric Power Co Inc:The | 石膏の製造方法 |
| FI118629B (fi) * | 2005-06-15 | 2008-01-31 | Metso Power Oy | Menetelmä ja laitteisto hiilidioksidin poistamiseksi rikkidioksidipitoisista savukaasuista |
| US7964170B2 (en) | 2007-10-19 | 2011-06-21 | Fluegen, Inc. | Method and apparatus for the removal of carbon dioxide from a gas stream |
| DE102008062387A1 (de) * | 2008-12-17 | 2010-07-01 | Uhde Gmbh | Verfahren zur Reinigung von technischen Gasen und Gewinnung von Sauergasen |
| EP2665543B1 (en) * | 2011-01-18 | 2017-09-06 | Commonwealth Scientific and Industrial Research Organisation | Process for capturing acid gases |
| CN102895862B (zh) * | 2012-10-25 | 2014-12-17 | 四川皇龙智能破碎技术股份有限公司 | 单塔脱除煤气中硫化氢的方法和系统 |
| CN103381334B (zh) * | 2013-07-17 | 2015-07-15 | 山东大学 | 一种利用钢渣去除硫化氢的方法及装置 |
| CN103436301B (zh) * | 2013-09-13 | 2015-02-25 | 上海电力学院 | 煤气联合除尘脱硫系统 |
| CN104492227B (zh) * | 2014-12-11 | 2016-09-14 | 西安长庆科技工程有限责任公司 | 一种用于处理含h2s酸气的吸收及焚烧系统及方法 |
| CN104984652A (zh) * | 2015-07-11 | 2015-10-21 | 河北新启元能源技术开发股份有限公司 | 碱渣酸化精制尾气处理装置及其处理工艺 |
| CN105293852B (zh) * | 2015-12-04 | 2017-08-25 | 山西省生态环境研究中心 | 污泥生物沥滤调理同步耦合臭气净化的方法 |
| US10370176B2 (en) * | 2017-09-12 | 2019-08-06 | Wd-40 Company | Child resistant aerosol actuator |
| CN108671701A (zh) * | 2018-05-17 | 2018-10-19 | 浙江卫星能源有限公司 | 一种含硫化氢的气体的脱硫方法 |
| CN109589760B (zh) * | 2018-11-07 | 2021-04-27 | 合肥通用机械研究院有限公司 | 一种实验室用硫化氢快速处理装置及处理方法 |
| KR102466873B1 (ko) * | 2021-03-29 | 2022-11-17 | 주식회사 시뮬레이션테크 | 선박용 탈황 스크러버를 이용한 이산화탄소 저감장치 |
| CN114452803B (zh) * | 2022-01-12 | 2023-03-24 | 中国科学院过程工程研究所 | 一种对废旧轮胎热解产生的热解气进行处理的方法和系统 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE47516C1 (no) * | 1920-01-01 | |||
| SE448173B (sv) * | 1985-06-03 | 1987-01-26 | Croon Inventor Ab | Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys |
| US5284550A (en) * | 1992-06-18 | 1994-02-08 | Combustion Engineering, Inc. | Black liquier gasification process operating at low pressures using a circulating fluidized bed |
| SE470516B (sv) * | 1992-11-05 | 1994-06-27 | Chemrec Ab | Rening av gas från svartlutsförgasning |
| SE9300533L (sv) * | 1993-02-18 | 1994-08-19 | Flaekt Ab | Sätt och anordning för absorption av svavelväte |
-
1993
- 1993-09-17 SE SE9303034A patent/SE501782C2/sv not_active IP Right Cessation
-
1994
- 1994-09-07 CA CA002171342A patent/CA2171342A1/en not_active Abandoned
- 1994-09-07 BR BR9407636A patent/BR9407636A/pt not_active IP Right Cessation
- 1994-09-07 CN CN94193932A patent/CN1066634C/zh not_active Expired - Fee Related
- 1994-09-07 WO PCT/SE1994/000829 patent/WO1995007750A1/en active Application Filing
- 1994-09-07 RU RU96108406A patent/RU2119375C1/ru not_active IP Right Cessation
- 1994-09-07 AU AU77125/94A patent/AU7712594A/en not_active Abandoned
- 1994-09-07 JP JP7509118A patent/JPH09502651A/ja active Pending
-
1996
- 1996-03-13 NO NO961016A patent/NO305277B1/no not_active IP Right Cessation
- 1996-03-15 FI FI961237A patent/FI961237A0/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9303034L (sv) | 1995-03-18 |
| WO1995007750A1 (en) | 1995-03-23 |
| SE501782C2 (sv) | 1995-05-15 |
| NO961016L (no) | 1996-03-13 |
| FI961237A (fi) | 1996-03-15 |
| SE9303034D0 (sv) | 1993-09-17 |
| AU7712594A (en) | 1995-04-03 |
| JPH09502651A (ja) | 1997-03-18 |
| NO305277B1 (no) | 1999-05-03 |
| FI961237A0 (fi) | 1996-03-15 |
| RU2119375C1 (ru) | 1998-09-27 |
| BR9407636A (pt) | 1997-01-28 |
| NO961016D0 (no) | 1996-03-13 |
| CN1133568A (zh) | 1996-10-16 |
| CN1066634C (zh) | 2001-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |