DE60037364D1 - Verfahren zur Reinigung von Luft durch Adsorption auf Barium ausgetauschtem Zeolith - Google Patents
Verfahren zur Reinigung von Luft durch Adsorption auf Barium ausgetauschtem ZeolithInfo
- Publication number
- DE60037364D1 DE60037364D1 DE60037364T DE60037364T DE60037364D1 DE 60037364 D1 DE60037364 D1 DE 60037364D1 DE 60037364 T DE60037364 T DE 60037364T DE 60037364 T DE60037364 T DE 60037364T DE 60037364 D1 DE60037364 D1 DE 60037364D1
- Authority
- DE
- Germany
- Prior art keywords
- adsorption
- purification
- air
- exchanged zeolite
- barium exchanged
- 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.)
- Expired - Lifetime
Links
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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0462—Temperature swing adsorption
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- 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
- B01D53/02—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 adsorption, e.g. preparative gas chromatography
- B01D53/04—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 adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/0476—Vacuum pressure swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/18—Synthetic zeolitic molecular sieves
- B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
- B01D2253/108—Zeolites
- B01D2253/1085—Zeolites characterized by a silicon-aluminium ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/304—Linear dimensions, e.g. particle shape, diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/30—Physical properties of adsorbents
- B01D2253/302—Dimensions
- B01D2253/308—Pore size
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/504—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40058—Number of sequence steps, including sub-steps, per cycle
- B01D2259/40064—Five
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/416—Further details for adsorption processes and devices involving cryogenic temperature treatment
-
- 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
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S95/00—Gas separation: processes
- Y10S95/90—Solid sorbent
- Y10S95/902—Molecular sieve
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Separation Of Gases By Adsorption (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9908566 | 1999-07-02 | ||
FR9908566A FR2795657B1 (fr) | 1999-07-02 | 1999-07-02 | Procede de purification d'air par adsorption sur zeolite echangee au baryum |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60037364D1 true DE60037364D1 (de) | 2008-01-24 |
DE60037364T2 DE60037364T2 (de) | 2008-12-04 |
Family
ID=9547652
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60037364T Expired - Lifetime DE60037364T2 (de) | 1999-07-02 | 2000-06-13 | Verfahren zur Reinigung von Luft durch Adsorption auf Barium ausgetauschtem Zeolith |
Country Status (4)
Country | Link |
---|---|
US (1) | US6425937B1 (de) |
EP (1) | EP1064978B1 (de) |
DE (1) | DE60037364T2 (de) |
FR (1) | FR2795657B1 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2800995B1 (fr) * | 1999-10-05 | 2002-01-04 | Ceca Sa | Adsorbants zeolitiques, leur procede d'obtention et leur utilisation pour la decarbonation de flux gazeux |
SE0100064D0 (sv) * | 2001-01-10 | 2001-01-10 | Siemens Elema Ab | Anaesthetic filter arrangement |
FR2832077B1 (fr) | 2001-11-12 | 2004-08-27 | Air Liquide | Adsorbant zeolitique au baryum et calcium pour la purification de gaz, en particulier de l'air |
US7527670B2 (en) | 2001-12-20 | 2009-05-05 | Praxair Technology, Inc. | Method and apparatus for gas purification |
US6719827B2 (en) * | 2002-03-01 | 2004-04-13 | Air Products And Chemicals, Inc. | Process for nitrous oxide removal |
US20030221555A1 (en) * | 2002-05-31 | 2003-12-04 | Golden Timothy Christopher | Purification of gas streams using composite adsorbent |
CN1315563C (zh) * | 2003-06-06 | 2007-05-16 | 四川天一科技股份有限公司 | 从混合气体中脱除乙烯、二氧化碳的吸附分离法 |
FR2863909B1 (fr) * | 2003-12-22 | 2006-05-26 | Ceca Sa | Methode de purification de flux gazeux pollue par co2 et hydrocarbure(s) et/ou oxyde(s) d'azote par adsorbant zeolitique agglomere |
EP1736237A4 (de) * | 2004-03-30 | 2009-05-06 | Taiyo Nippon Sanso Corp | Vorbehandlung eines reinigungsmittels für eine luftverflüssigigungstrennvorrichtung und kohlenwasserstoffabsorptionsmittel zur verwendung darin sowie verfahren zur vorbehandlung von rohluft |
US20080011163A1 (en) * | 2006-07-17 | 2008-01-17 | Mcclain Michael S | Sorbent porous polymeric composite materials |
FR2913610A1 (fr) * | 2007-03-16 | 2008-09-19 | Air Liquide | Procede pour eliminer le n2o d'un flux gazeux |
GB2480978B (en) * | 2009-03-31 | 2015-02-11 | Council Scient Ind Res | A barium and potassium exchanged zeolite-X adsorbents for CO2 removal from a gas mixture and preparation thereof |
JP5684898B2 (ja) * | 2011-03-31 | 2015-03-18 | 大陽日酸株式会社 | ガス精製方法 |
FR2977506A1 (fr) * | 2011-07-07 | 2013-01-11 | Air Liquide | Procede de purification d'un flux gazeux avec controle de la purete |
WO2013004932A1 (fr) | 2011-07-07 | 2013-01-10 | L'air Liquide,Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé de purification d'un flux gazeux avec contrôle de la pureté |
CN108096991A (zh) | 2012-05-22 | 2018-06-01 | 恩沃德系统公司 | 对室内空气的洗涤的吸附剂的高效利用 |
WO2014047632A1 (en) | 2012-09-24 | 2014-03-27 | Enverid Systems, Inc. | Air handling system with integrated air treatment |
US9987584B2 (en) | 2012-11-15 | 2018-06-05 | Enverid Systems, Inc. | Method and system for reduction of unwanted gases in indoor air |
MX363829B (es) | 2013-03-15 | 2019-04-03 | Celanese Int Corp | Proceso para separar gas de producto usando proceso de carbonilación. |
CN109952140A (zh) | 2016-11-10 | 2019-06-28 | 恩弗里德系统公司 | 低噪声、天花板安装的室内空气洗涤器 |
CN112403433A (zh) * | 2020-09-21 | 2021-02-26 | 复榆(张家港)新材料科技有限公司 | 一种新型亚中孔沸石分子筛吸附剂的制备方法及应用 |
CN113828274B (zh) * | 2021-10-08 | 2023-12-08 | 中国地质科学院郑州矿产综合利用研究所 | 一种低压下吸附二氧化碳的BaSrNaLSX制备方法 |
FR3136995A1 (fr) * | 2022-06-27 | 2023-12-29 | Engie | Procédé et dispositif d’épuration de gaz par adsorption froide de dioxyde de carbone et procédé et dispositif de liquéfaction |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2882244A (en) * | 1953-12-24 | 1959-04-14 | Union Carbide Corp | Molecular sieve adsorbents |
DE2064137B2 (de) * | 1970-12-28 | 1971-09-16 | Verfahren und vorrichtung zum adsorptiven entfernen von wasser und einer oder mehreren anderen komponenten aus gasen | |
US3885927A (en) * | 1974-02-05 | 1975-05-27 | Union Carbide Corp | Process for removing carbon dioxide from gas streams |
US4247987A (en) * | 1979-09-26 | 1981-02-03 | Exxon Research & Engineering Co. | Continuous countercurrent fluid-solids contacting process stabilized by a magnetic field |
JPS60179134A (ja) * | 1984-02-28 | 1985-09-13 | Union Showa Kk | 分子ふるい成形体 |
JPS61191516A (ja) * | 1985-02-18 | 1986-08-26 | Union Showa Kk | 結晶性ゼオライト |
JPH06171B2 (ja) * | 1987-03-09 | 1994-01-05 | ユニオン・カーバイド・コーポレーション | 改良された吸着精製方法 |
US4935580A (en) * | 1988-06-14 | 1990-06-19 | Uop | Process for purification of hydrocarbons using metal exchanged clinoptilolite to remove carbon dioxide |
US4957514A (en) * | 1989-02-07 | 1990-09-18 | Air Products And Chemicals, Inc. | Hydrogen purification |
US5110569A (en) * | 1990-01-19 | 1992-05-05 | The Boc Group, Inc. | Low temperature purification of gases |
US5424051A (en) * | 1992-01-14 | 1995-06-13 | Uop | Process for the removal of carbon dioxide and mercaptans from a gas stream |
US5258058A (en) * | 1992-10-05 | 1993-11-02 | Air Products And Chemicals, Inc. | Nitrogen adsorption with a divalent cation exchanged lithium X-zeolite |
US5980611A (en) * | 1997-09-25 | 1999-11-09 | The Boc Group, Inc. | Air purification process |
FR2773499B1 (fr) * | 1998-01-14 | 2000-02-11 | Air Liquide | Procede de purification par adsorption de l'air avant distillation cryogenique |
US6074973A (en) * | 1998-03-20 | 2000-06-13 | Engelhard Corporation | Catalyzed hydrocarbon trap material and method of making the same |
US6106593A (en) * | 1998-10-08 | 2000-08-22 | Air Products And Chemicals, Inc. | Purification of air |
FR2784599B1 (fr) * | 1998-10-20 | 2000-12-08 | Air Liquide | Procede de purification d'un flux gazeux en ses impuretes n2o |
FR2789914B1 (fr) * | 1999-02-22 | 2001-04-06 | Ceca Sa | Adsorbants zeolitiques agglomeres a faible taux de liant inerte, leur procede d'obtention et leurs utilisations |
US6143057A (en) * | 1999-04-23 | 2000-11-07 | The Boc Group, Inc. | Adsorbents and adsorptive separation process |
-
1999
- 1999-07-02 FR FR9908566A patent/FR2795657B1/fr not_active Expired - Fee Related
-
2000
- 2000-06-13 DE DE60037364T patent/DE60037364T2/de not_active Expired - Lifetime
- 2000-06-13 EP EP00401654A patent/EP1064978B1/de not_active Expired - Lifetime
- 2000-07-03 US US09/609,370 patent/US6425937B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2795657B1 (fr) | 2001-09-14 |
EP1064978A1 (de) | 2001-01-03 |
DE60037364T2 (de) | 2008-12-04 |
FR2795657A1 (fr) | 2001-01-05 |
EP1064978B1 (de) | 2007-12-12 |
US6425937B1 (en) | 2002-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60037364D1 (de) | Verfahren zur Reinigung von Luft durch Adsorption auf Barium ausgetauschtem Zeolith | |
ATE540962T1 (de) | Extraktive verfahren zur aufreinigung von sucralose | |
DE60221619D1 (de) | Verfahren zur Reinigung von Synthesegas | |
DE69902409T2 (de) | Verfahren zur Reinigung von Luft mittels Adsorption vor kryogener Lufttrennung | |
DE60012246D1 (de) | Verfahren zum Herstellen von mesoporösen Molekularsieben zum Adsorbieren von Stickstoffoxiden aus sauerstoffreichem Motorabgas | |
DE60238991D1 (de) | Verfahren zur reinigung von membranmodulen | |
DE60211045D1 (de) | Verfahren zur Herstellung von geträgerten Zeolithmembranen durch temperaturgesteuerte Kristallisation | |
FR2771943B1 (fr) | Procede de purification de fluides inertes par adsorption sur zeolite lsx | |
DE60114348D1 (de) | Verfahren zur Reinigung von Gasen | |
DE60120819D1 (de) | Verfahren zur adsorptiven Trennung von Kohlendioxid | |
DE60106104D1 (de) | Verfahren zur Absorption von Acrylsäure und Verfahren zur Reinigung von Acrylsäure | |
BR9801576A (pt) | Recuperação de ozônio por adsorventes de zeolito | |
DE69817517D1 (de) | Verfahren zur Abscheidung von CO2 und Wasser aus Luft durch Adsorption mit kalziniertem Alumina | |
DE69501128T2 (de) | Verfahren zur Abtrennung von Ethylbenzol durch Adsorption an mit Cesium ausgetauschtem Zeolith X | |
DE59602430D1 (de) | Verfahren zur Herstellung von Zeolith Y | |
DE50006450D1 (de) | Verfahren zur Reinigung von N-substituierten Lactamen, mit sauren makroporösen Kationenaustauschern | |
DE60003123D1 (de) | Entfernung von sauren Gasen durch ein mit Stickstoff regeneriertes Absorptionsmittel | |
DE59102062D1 (de) | Verfahren zur biologischen Reinigung von Abluftströmen. | |
DE69331301T2 (de) | Verfahren zur Reinigung von sauerstoffreichem Abgas | |
DE60102419D1 (de) | Verfahren zur Herstellung von Lithium ausgetauschten agglomerierten X und LSX-Typ Zeolithen | |
DE69707848D1 (de) | Verfahren zur Reinigung von Acetonitril | |
DE60300252D1 (de) | Verfahren zur industriellen Herstellung von 5-Amino-3-carboxymethyl-4-cyano-2-thiphencarboxydimethylester | |
DE59601070D1 (de) | Verfahren zur Reinigung von N-Vinylpyrrolidon durch Kristallisation | |
DE60129907D1 (de) | Verfahren zur Reinigung von Isophthalonitril | |
DE60210204D1 (de) | Verfahren zur katalytischen Zersetzung von Distickstoffmonoxid (N2O) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |