NL193746C - Werkwijze voor het verwijderen van CO#2 en eventueel aanwezig H#2S uit een gasmengsel. - Google Patents
Werkwijze voor het verwijderen van CO#2 en eventueel aanwezig H#2S uit een gasmengsel. Download PDFInfo
- Publication number
- NL193746C NL193746C NL8202061A NL8202061A NL193746C NL 193746 C NL193746 C NL 193746C NL 8202061 A NL8202061 A NL 8202061A NL 8202061 A NL8202061 A NL 8202061A NL 193746 C NL193746 C NL 193746C
- Authority
- NL
- Netherlands
- Prior art keywords
- solvent
- gas
- pressure
- kmolvh
- methane
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 29
- 239000002904 solvent Substances 0.000 claims description 104
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 238000010521 absorption reaction Methods 0.000 claims description 18
- 238000001704 evaporation Methods 0.000 claims description 18
- 230000008020 evaporation Effects 0.000 claims description 17
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 230000002745 absorbent Effects 0.000 claims description 10
- 239000002250 absorbent Substances 0.000 claims description 10
- 150000003512 tertiary amines Chemical class 0.000 claims description 10
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical group OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 7
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 125000002768 hydroxyalkyl group Chemical group 0.000 claims description 3
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims description 2
- 229940043276 diisopropanolamine Drugs 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 88
- 230000002378 acidificating effect Effects 0.000 description 15
- 230000008929 regeneration Effects 0.000 description 14
- 238000011069 regeneration method Methods 0.000 description 14
- 239000002253 acid Substances 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 229930195733 hydrocarbon Natural products 0.000 description 5
- 150000002430 hydrocarbons Chemical class 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001172 regenerating effect Effects 0.000 description 3
- 150000003335 secondary amines Chemical class 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- -1 dialkanolamine Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000003141 primary amines Chemical class 0.000 description 2
- ZUHZGEOKBKGPSW-UHFFFAOYSA-N tetraglyme Chemical compound COCCOCCOCCOCCOC ZUHZGEOKBKGPSW-UHFFFAOYSA-N 0.000 description 2
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- CNPURSDMOWDNOQ-UHFFFAOYSA-N 4-methoxy-7h-pyrrolo[2,3-d]pyrimidin-2-amine Chemical compound COC1=NC(N)=NC2=C1C=CN2 CNPURSDMOWDNOQ-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- AKNUHUCEWALCOI-UHFFFAOYSA-N N-ethyldiethanolamine Chemical compound OCCN(CC)CCO AKNUHUCEWALCOI-UHFFFAOYSA-N 0.000 description 1
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 239000012972 dimethylethanolamine Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/16—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with non-aqueous liquids
-
- 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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
- B01D53/1462—Removing mixtures of hydrogen sulfide and carbon dioxide
-
- 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
- B01D53/14—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 by absorption
- B01D53/1493—Selection of liquid materials for use as absorbents
-
- 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
- B01D53/526—Mixtures of hydrogen sulfide and carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/11—Purification; Separation; Use of additives by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
- C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
- Industrial Gases (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8118288 | 1981-06-15 | ||
| GB8118288 | 1981-06-15 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL8202061A NL8202061A (nl) | 1983-01-03 |
| NL193746B NL193746B (nl) | 2000-05-01 |
| NL193746C true NL193746C (nl) | 2000-09-04 |
Family
ID=10522502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8202061A NL193746C (nl) | 1981-06-15 | 1982-05-19 | Werkwijze voor het verwijderen van CO#2 en eventueel aanwezig H#2S uit een gasmengsel. |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS57209626A (ja) |
| KR (1) | KR840000263A (ja) |
| AU (1) | AU546704B2 (ja) |
| BE (1) | BE893386A (ja) |
| BR (1) | BR8203471A (ja) |
| CA (1) | CA1205276A (ja) |
| DD (1) | DD202129A5 (ja) |
| DE (1) | DE3222281C2 (ja) |
| DK (1) | DK162192C (ja) |
| DZ (1) | DZ429A1 (ja) |
| ES (1) | ES513052A0 (ja) |
| FR (1) | FR2507498B1 (ja) |
| GB (1) | GB2103645B (ja) |
| IN (1) | IN156408B (ja) |
| IT (1) | IT1210895B (ja) |
| NL (1) | NL193746C (ja) |
| NO (1) | NO154785C (ja) |
| NZ (1) | NZ200951A (ja) |
| PL (1) | PL236913A1 (ja) |
| SU (1) | SU1577685A3 (ja) |
| ZA (1) | ZA824163B (ja) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1132170B (it) * | 1980-07-04 | 1986-06-25 | Snam Progetti | Processo di separazione selettiva di idrogeno solforato da miscele gassose contenenti anche anidride carbonica |
| IT1177324B (it) * | 1984-11-26 | 1987-08-26 | Snam Progetti | Procedimento per rimuovere selettivamente l'idrogeno solforato da miscele gassose contenenti anche anidride carbonica |
| NL8600030A (nl) * | 1986-01-09 | 1987-08-03 | Shell Int Research | Verwijderen van zure gassen uit een gasmengsel. |
| JPH01135518A (ja) * | 1987-11-20 | 1989-05-29 | Seitetsu Kagaku Co Ltd | スルフォランによる吸収除害方法 |
| GB8830199D0 (en) * | 1988-12-23 | 1989-02-22 | Shell Int Research | Removing hydrogen sulphide from a gas mixture |
| US5397556A (en) * | 1992-12-16 | 1995-03-14 | The Regents Of The Unviversity Of California | Process for recovery of sulfur from acid gases |
| US5347003A (en) * | 1993-03-05 | 1994-09-13 | Quaker Chemical Corporation | Methods for regenerating a sulfur scavenging compound from a product of a sulfur scavenging reaction |
| US5508012A (en) * | 1993-03-05 | 1996-04-16 | Quaker Chemical Corporation | Methods for recovering sodium sulfides from a sulfur scavenging reaction |
| US5698171A (en) * | 1996-01-10 | 1997-12-16 | Quaker Chemical Corporation | Regenerative method for removing sulfides from gas streams |
| US5885538A (en) * | 1997-07-02 | 1999-03-23 | Quaker Chemical Corporation | Method and composition for the regeneration of an aminal compound |
| EP0918049A1 (en) * | 1997-10-27 | 1999-05-26 | Shell Internationale Researchmaatschappij B.V. | Process for the purification of an alkanolamine |
| FR2820430B1 (fr) * | 2001-02-02 | 2003-10-31 | Inst Francais Du Petrole | Procede de desacidification d'un gaz avec lavage des hydrocarbures desorbes lors de la regeneration du solvant |
| EP1565248A1 (en) * | 2002-11-28 | 2005-08-24 | Shell Internationale Researchmaatschappij B.V. | Process for removing sulphur compounds including hydrogen sulphide and mercaptans from gas streams |
| US20090081095A1 (en) * | 2007-09-20 | 2009-03-26 | Cotwocon, Inc. | Process for Destroying Carbonaceous Materials and Composition and System Thereof |
| DE102008043329B3 (de) * | 2008-10-30 | 2010-06-24 | Helmholtz-Zentrum Für Umweltforschung Gmbh - Ufz | Vorrichtung und Verfahren zur Sanierung und Separation von Gasakkumulationen in Gewässern |
| MX2012003650A (es) * | 2009-09-29 | 2012-05-08 | Fluor Tech Corp | Metodos y configuraciones para purificacion de gas. |
| EP3628393B1 (de) * | 2016-02-08 | 2021-05-26 | Basf Se | Verfahren zur abtrennung von kohlenmonoxid und sauergasen aus einem kohlenmonoxidhaltigem fluidstrom |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3242640A (en) * | 1962-12-27 | 1966-03-29 | Union Oil Co | Removal of acid constituents from gas mixtures |
| DE1494809C3 (de) * | 1966-10-25 | 1974-01-17 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zum Auswaschen von Kohlendioxid aus schwefelarmen oder schwefelfreien Gasen |
| US3770622A (en) * | 1970-12-28 | 1973-11-06 | Fluor Corp | Treatment of wet natural gas mixtures to recover liquid hydrocarbons |
| DE2226215C3 (de) * | 1972-05-30 | 1975-09-25 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Regeneration eines beladenen Absorptionsmittels, das beim Auswaschen von sauren Komponenten aus Gasen anfällt |
| US4025322A (en) * | 1975-05-19 | 1977-05-24 | Shell Oil Company | Removal of hydrocarbons and water from acid gas streams |
| GB1589231A (en) * | 1977-04-21 | 1981-05-07 | Shell Int Research | Process for the removal of acidic gases |
-
1982
- 1982-05-18 CA CA000403167A patent/CA1205276A/en not_active Expired
- 1982-05-19 NL NL8202061A patent/NL193746C/nl not_active IP Right Cessation
- 1982-06-02 BE BE1/10525A patent/BE893386A/nl not_active IP Right Cessation
- 1982-06-11 AU AU84849/82A patent/AU546704B2/en not_active Expired
- 1982-06-11 GB GB08217024A patent/GB2103645B/en not_active Expired
- 1982-06-12 KR KR1019820002620A patent/KR840000263A/ko unknown
- 1982-06-14 NO NO821968A patent/NO154785C/no not_active IP Right Cessation
- 1982-06-14 ZA ZA824163A patent/ZA824163B/xx unknown
- 1982-06-14 PL PL23691382A patent/PL236913A1/xx unknown
- 1982-06-14 FR FR8210321A patent/FR2507498B1/fr not_active Expired
- 1982-06-14 BR BR8203471A patent/BR8203471A/pt not_active IP Right Cessation
- 1982-06-14 ES ES513052A patent/ES513052A0/es active Granted
- 1982-06-14 IT IT8221849A patent/IT1210895B/it active
- 1982-06-14 SU SU823450439A patent/SU1577685A3/ru active
- 1982-06-14 DD DD82240719A patent/DD202129A5/de not_active IP Right Cessation
- 1982-06-14 DZ DZ826563A patent/DZ429A1/fr active
- 1982-06-14 DE DE3222281A patent/DE3222281C2/de not_active Expired - Lifetime
- 1982-06-14 DK DK266382A patent/DK162192C/da not_active IP Right Cessation
- 1982-06-14 JP JP57100792A patent/JPS57209626A/ja active Granted
- 1982-06-14 NZ NZ200951A patent/NZ200951A/en unknown
- 1982-06-14 IN IN680/CAL/82A patent/IN156408B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO154785B (no) | 1986-09-15 |
| FR2507498B1 (fr) | 1988-11-25 |
| CA1205276A (en) | 1986-06-03 |
| BR8203471A (pt) | 1983-06-07 |
| KR840000263A (ko) | 1984-02-18 |
| DK162192B (da) | 1991-09-30 |
| FR2507498A1 (fr) | 1982-12-17 |
| NL8202061A (nl) | 1983-01-03 |
| BE893386A (nl) | 1982-12-02 |
| PL236913A1 (en) | 1983-02-14 |
| DE3222281C2 (de) | 1997-10-23 |
| GB2103645B (en) | 1984-03-21 |
| ES8303935A1 (es) | 1983-02-16 |
| NZ200951A (en) | 1985-02-28 |
| NO821968L (no) | 1982-12-16 |
| NO154785C (no) | 1986-12-29 |
| DK162192C (da) | 1992-02-17 |
| DZ429A1 (fr) | 2004-09-13 |
| JPS57209626A (en) | 1982-12-23 |
| ES513052A0 (es) | 1983-02-16 |
| GB2103645A (en) | 1983-02-23 |
| ZA824163B (en) | 1983-04-27 |
| DD202129A5 (de) | 1983-08-31 |
| JPH0221286B2 (ja) | 1990-05-14 |
| NL193746B (nl) | 2000-05-01 |
| DE3222281A1 (de) | 1982-12-30 |
| AU8484982A (en) | 1982-12-23 |
| AU546704B2 (en) | 1985-09-12 |
| DK266382A (da) | 1982-12-16 |
| SU1577685A3 (ru) | 1990-07-07 |
| IT1210895B (it) | 1989-09-29 |
| IN156408B (ja) | 1985-07-20 |
| IT8221849A0 (it) | 1982-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| V4 | Discontinued because of reaching the maximum lifetime of a patent |
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